File:Cg4 candidates-3.png

2010-11-23T22:38:33Z

Mccarron:

File:SA101 only new yso candidates-green.png

2010-11-10T23:28:39Z

Mccarron:

File:CG4 only new yso candidates-yellow.png

2010-11-10T23:27:34Z

Mccarron: Only new YSOs in CG4

Only new YSOs in CG4

File:Cg4ysocand.txt

2010-11-05T21:53:07Z

Mccarron: DS9 Region file of CG4 YSO candidates. Must rename with .reg

DS9 Region file of CG4 YSO candidates. Must rename with .reg

File:Cg4yso-previous.txt

2010-11-05T21:49:00Z

Mccarron: DS9 Region file - must rename with .reg

DS9 Region file - must rename with .reg

File:Sa101ysocand-3.txt

2010-11-05T21:47:45Z

Mccarron: region file (must rename to .reg) for SA101

region file (must rename to .reg) for SA101

File:Sa101-ysocand-previous-6.png

2010-11-05T21:43:37Z

Mccarron:

2010-09-27T20:12:03Z

Mccarron:

=[[CG4 Proposal]]=

This page will be used to assemble the pieces for the proposal we are writing.

=[[CG4 Useful Links]]=
A consolidation of all sorts of useful links, mostly culled from Luisa's email.

=Previous Teams' pages=
[[Lynds Clouds Current Research Activities]] and [[IC 2118 Current Research Activities]]

=[[CG4 Spring work]]=
This page will be used to collect information during our work in Spring.

=[[CG4 Summer visit]]=
This page will be used to collect logistics information about our IPAC visit. The visit is June 14-16. (NB: HOU conference at Yerkes June 20-24.)

=[[CG4 Bigger Picture and Goals]]=
Subject to change! Includes agenda for Summer visit.

=Previously Known Objects in Puppis region (Reipurth and Pettersson 1993)=
{| border="1"
|Star
|RA (J2000)
|Dec (J2000)
|V
|(B-V)
|(U-B)
|Region
|-
|CG-Halpha 1
|07 30 37.77
| -47 25 07.21
| >17
|none
|none
|Sa 101
|-
|CG-Halpha 2
|07 30 57.63
| -46 56 12.50
| >17
|none
|none
|Sa 101
|-
|CG-Halpha 3
|07 31 10.89
| -47 00 33.40
|14.99
|1.60
|0.91
|Sa 101
|-
|CG-Halpha 4
|07 31 21.92
| -46 59 45.14
|14.59
|1.40
|0.92
|Sa 101
|-
|CG-Halpha 5
|07 31 36.65
| -47 00 14.13
|15.25
|1.26
|0.23
|Sa 101
|-
|CG-Halpha 6
|07 31 37.45
| -47 00 22.19
|14.21
|1.42
|0.90
|Sa 101
|-
|CG-Halpha 7
|07 33 26.92
| -46 48 43.51
|13.97
|1.19
|0.84
|CG 4
|-
|CG-Halpha 8
|07 15 49.86
| -48 31 27.16
|15.33
|1.39
|0.13
|CG 13
|-
|PHalpha 92
|08 28 40.73
| -33 46 23.17
|13.38
|1.27
|0.91
|CG 22
|-
|}

=[[Working with L1688]]=
Sample analysis thread using Lynds 1688 (developed in the context of the Lynds Cloud team).

=[[Working with CG4+SA101]]=
An adaptation of "Working with L1688" above, with specific application to our project.

=[[CG4 Fall Work]]=

==Science Abstract==
First draft of Science Abstract:

''We used archival Spitzer data to look for new young stellar objects (YSOs) in Cometary Globule 4 (CG4) in Puppis. CG4 is approximately 1300 parsecs and one of about 30 cometary globules in the Gum Nebula, many of which are known to be forming stars. These globules are pointed generally radially outward from the center of the Vela OB2 association, which is also forming stars. CG4 is dramatic in appearance, and that has brought it to the attention of both scientists and the public. Our team used archival Spitzer InfraRed Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) data and 2 Micron All Sky Survey (2MASS) data, as well as optical data obtained by collaborators. We used infrared excess to find nine previously known YSOs and additional new YSOs in this region. We will primarily use infrared excess to find new YSOs. We used available data to attempt to determine legitimate cluster members, and to separate CG4’s YSOs from other objects with similar spectral energy distributions (SEDs). This research was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by the Spitzer Science Center (SSC).''

Please edit as you see fit.

Luisa's edits:
''We used archival Spitzer infrared data to look for new young stellar objects (YSOs) in Cometary Globule 4 (CG4) in Puppis. CG4 is approximately 1300 parsecs away and one of about 30 cometary globules in the Gum Nebula, many of which are known to be forming stars. CG4 is dramatic in appearance, and that has brought it to the attention of both scientists and the public. Our team used archival Spitzer InfraRed Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) data, combined with 2 Micron All Sky Survey (2MASS) data as well as optical data obtained by collaborators. We used infrared excess to investigate the properties of previously known YSOs in this region and identify additional new candidate YSOs in this region. This research was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by the Spitzer Science Center (SSC).''
rationale for my changes: occasional missing words/wordsmithing. the stuff about radially pointing is indeed true, but not strictly relevant to the abstract (tho' it's appropriate for the main body of the poster in the introduction). 'we will use' = lingering sentence left over i think from editing, since it is redundant with prior sentence. stuff about separating YSOs from contaminants absolutely true, but is implicit in the statement that we've identified YSO candidates -- of course we've attempted to weed out contaminants. there should be some text on that in the main body of the poster, though, for sure.

==Author list ==

Also, send Chelen the names of all additional authors to be listed. For example, I will write the Breck team as ...
Chelen Johnson, Rachel Crump, Anna Laorr, Kayla Mork, Emma Steinbergs, Sara Trautz, Elizabeth Wigley, Sally Caruso, Heather Balenger, Nina Killingstad, Taylor McCanna.
We will identify schools with superscripts and a key. (See previous NITARP posters [http://coolwiki.ipac.caltech.edu/index.php/Posters_and_Handouts_from_AAS_meetings] for an example.)

--[[User:CJohnson|CJohnson]] 20:12, 21 September 2010 (CDT)

you should add me, of course, but also Serena Kim (Univ. Arizona). --[[User:Rebull|Rebull]] 09:09, 22 September 2010 (PDT)

Here's the author list for the AAS science and education posters ...

Chelen Johnson, Rachel Crump, Anna Laorr, Kayla Mork, Emma Steinbergs, Sara Trautz, Elizabeth Wigley, Sally Caruso, Heather Balenger, Nina Killingstad, Taylor McCanna (Breck School, Minneapolis, MN)

Luisa Rebull (SSC/IPAC/CalTech, Pasadena, CA)

Vivian Hoette (University of Chicago, Yerkes Observatory, Williams Bay, WI)

Carolyn Mallory, Michael Feig, Niyaz Mahmud, Tiffany Selic (Pierce College, Woodland Hills, CA)

Kevin McCarron (Oak Park River Forest High School, Oak Park, IL)
Constance Gartner, Jennifer VanDerMolen, Lissa Matche, Anna McCartney (Wisconsin School for the Deaf, Delavan, WI)

Lee Gamble, Mark Doering (Wisconsin Center for the Blind and Visually Impaired, Janesville, WI)

Russ Laher (SSC/IPAC/CalTech, Pasadena, CA)

Mark Legassie (SSC/IPAC/CalTech/Raytheon, Pasadena, CA)

Serena Kim (U of Arizona, Tucson, AZ) '''SCIENCE ONLY'''

--[[User:CJohnson|CJohnson]] 17:56, 22 September 2010 (CDT)

==Edu poster 1==

Here is the Draft Abstract for the Team Wisconsin Education Poster (Viv, WSD, WCBVI and Kevin - no Chelen, I haven't moved...) We welcome comments and edits.

Individuals with disabilities - specifically individuals who are Deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with Spitzer Space Telescope scientists within the NITARP project. Our ultimate goals are threefold; to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with a group of scientists from the Spitzer Science Center during the spring, summer, and fall of 2010. The group coauthored a poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

--[[User:mccarron|KMcCarron]] 10:51, 27 September 2010 (CDT)

Luisa's suggested edits (see email for explanation):

Individuals with disabilities - specifically individuals who are deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with a Spitzer Science Center (SSC) scientist within the NASA-IPAC Teacher Archive Research Project (NITARP). Our ultimate goal is to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with an SSC scientist during the spring, summer, and fall of 2010. The group coauthored another AAS poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

Connie's suggested edits (still 296 words)

Individuals with disabilities - specifically individuals who are deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with a Spitzer Science Center (SSC) scientist within the NASA-IPAC Teacher Archive Research Project (NITARP). Our ultimate goals are threefold; to engage DHH and BVI students with equal success as their sighted and hearing peers, to share our techniques to make astronomy more accessible to DHH and BVI youth, and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with an SSC scientist during the spring, summer, and fall of 2010. The group coauthored another AAS poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

--[[User:mccarron|KMcCarron]] 12:19, 27 September 2010 (CDT)

The abstract looks fabulous to me. Great work, Team CG4! Do you need help in submitting?

--[[User:cjohnson|CJohnson]] 12:49, 27 September 2010 (CDT)

==Edu poster 2==

(Mallory first author.)

Our team from Pierce Community College, Woodland Hills, CA, participated in the NASA/IPAC Teacher Archive Research Program (NITARP) this past year (2010). (NITARP is described in another poster, Rebull et al.) Our team worked with archival Spitzer, 2MASS, and optical data to look for young stars in CG4, part of the Gum Nebula; our scientific results are described in a companion poster, Johnson et al. In this poster, we describe more about what we learned and how we incorporated our NITARP experiences into the Pierce College environment. Students developed critical thinking skills and an ability to organize their data analysis and develop a mental "big picture" of what is going on in the CG4 region. The NITARP program is one of several "Active Learning" programs going on at Pierce, and the other programs are briefly summarized in this poster as well. This program was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by NASA Astrophysics Data Program and Archive Outreach funds.

This abstract looks good, Carolyn. Anything I can do to help?

--[[User:cjohnson|CJohnson]] 13:45, 27 September 2010 (CDT)

CG4 Current Research Activities

2010-09-27T17:18:44Z

Mccarron:

=[[CG4 Proposal]]=

This page will be used to assemble the pieces for the proposal we are writing.

=[[CG4 Useful Links]]=
A consolidation of all sorts of useful links, mostly culled from Luisa's email.

=Previous Teams' pages=
[[Lynds Clouds Current Research Activities]] and [[IC 2118 Current Research Activities]]

=[[CG4 Spring work]]=
This page will be used to collect information during our work in Spring.

=[[CG4 Summer visit]]=
This page will be used to collect logistics information about our IPAC visit. The visit is June 14-16. (NB: HOU conference at Yerkes June 20-24.)

=[[CG4 Bigger Picture and Goals]]=
Subject to change! Includes agenda for Summer visit.

=Previously Known Objects in Puppis region (Reipurth and Pettersson 1993)=
{| border="1"
|Star
|RA (J2000)
|Dec (J2000)
|V
|(B-V)
|(U-B)
|Region
|-
|CG-Halpha 1
|07 30 37.77
| -47 25 07.21
| >17
|none
|none
|Sa 101
|-
|CG-Halpha 2
|07 30 57.63
| -46 56 12.50
| >17
|none
|none
|Sa 101
|-
|CG-Halpha 3
|07 31 10.89
| -47 00 33.40
|14.99
|1.60
|0.91
|Sa 101
|-
|CG-Halpha 4
|07 31 21.92
| -46 59 45.14
|14.59
|1.40
|0.92
|Sa 101
|-
|CG-Halpha 5
|07 31 36.65
| -47 00 14.13
|15.25
|1.26
|0.23
|Sa 101
|-
|CG-Halpha 6
|07 31 37.45
| -47 00 22.19
|14.21
|1.42
|0.90
|Sa 101
|-
|CG-Halpha 7
|07 33 26.92
| -46 48 43.51
|13.97
|1.19
|0.84
|CG 4
|-
|CG-Halpha 8
|07 15 49.86
| -48 31 27.16
|15.33
|1.39
|0.13
|CG 13
|-
|PHalpha 92
|08 28 40.73
| -33 46 23.17
|13.38
|1.27
|0.91
|CG 22
|-
|}

=[[Working with L1688]]=
Sample analysis thread using Lynds 1688 (developed in the context of the Lynds Cloud team).

=[[Working with CG4+SA101]]=
An adaptation of "Working with L1688" above, with specific application to our project.

=[[CG4 Fall Work]]=

==Science Abstract==
First draft of Science Abstract:

''We used archival Spitzer data to look for new young stellar objects (YSOs) in Cometary Globule 4 (CG4) in Puppis. CG4 is approximately 1300 parsecs and one of about 30 cometary globules in the Gum Nebula, many of which are known to be forming stars. These globules are pointed generally radially outward from the center of the Vela OB2 association, which is also forming stars. CG4 is dramatic in appearance, and that has brought it to the attention of both scientists and the public. Our team used archival Spitzer InfraRed Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) data and 2 Micron All Sky Survey (2MASS) data, as well as optical data obtained by collaborators. We used infrared excess to find nine previously known YSOs and additional new YSOs in this region. We will primarily use infrared excess to find new YSOs. We used available data to attempt to determine legitimate cluster members, and to separate CG4’s YSOs from other objects with similar spectral energy distributions (SEDs). This research was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by the Spitzer Science Center (SSC).''

Please edit as you see fit.

Luisa's edits:
''We used archival Spitzer infrared data to look for new young stellar objects (YSOs) in Cometary Globule 4 (CG4) in Puppis. CG4 is approximately 1300 parsecs away and one of about 30 cometary globules in the Gum Nebula, many of which are known to be forming stars. CG4 is dramatic in appearance, and that has brought it to the attention of both scientists and the public. Our team used archival Spitzer InfraRed Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) data, combined with 2 Micron All Sky Survey (2MASS) data as well as optical data obtained by collaborators. We used infrared excess to investigate the properties of previously known YSOs in this region and identify additional new candidate YSOs in this region. This research was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by the Spitzer Science Center (SSC).''
rationale for my changes: occasional missing words/wordsmithing. the stuff about radially pointing is indeed true, but not strictly relevant to the abstract (tho' it's appropriate for the main body of the poster in the introduction). 'we will use' = lingering sentence left over i think from editing, since it is redundant with prior sentence. stuff about separating YSOs from contaminants absolutely true, but is implicit in the statement that we've identified YSO candidates -- of course we've attempted to weed out contaminants. there should be some text on that in the main body of the poster, though, for sure.

==Author list ==

Also, send Chelen the names of all additional authors to be listed. For example, I will write the Breck team as ...
Chelen Johnson, Rachel Crump, Anna Laorr, Kayla Mork, Emma Steinbergs, Sara Trautz, Elizabeth Wigley, Sally Caruso, Heather Balenger, Nina Killingstad, Taylor McCanna.
We will identify schools with superscripts and a key. (See previous NITARP posters [http://coolwiki.ipac.caltech.edu/index.php/Posters_and_Handouts_from_AAS_meetings] for an example.)

--[[User:CJohnson|CJohnson]] 20:12, 21 September 2010 (CDT)

you should add me, of course, but also Serena Kim (Univ. Arizona). --[[User:Rebull|Rebull]] 09:09, 22 September 2010 (PDT)

Here's the author list for the AAS science and education posters ...

Chelen Johnson, Rachel Crump, Anna Laorr, Kayla Mork, Emma Steinbergs, Sara Trautz, Elizabeth Wigley, Sally Caruso, Heather Balenger, Nina Killingstad, Taylor McCanna (Breck School, Minneapolis, MN)

Luisa Rebull (SSC/IPAC/CalTech, Pasadena, CA)

Vivian Hoette (University of Chicago, Yerkes Observatory, Williams Bay, WI)

Carolyn Mallory, Michael Feig, Niyaz Mahmud, Tiffany Selic (Pierce College, Woodland Hills, CA)

Kevin McCarron (Oak Park River Forest High School, Oak Park, IL)
Constance Gartner, Jennifer VanDerMolen, Lissa Matche, Anna McCartney (Wisconsin School for the Deaf, Delavan, WI)

Lee Gamble, Mark Doering (Wisconsin Center for the Blind and Visually Impaired, Janesville, WI)

Russ Laher (SSC/IPAC/CalTech, Pasadena, CA)

Mark Legassie (SSC/IPAC/CalTech/Raytheon, Pasadena, CA)

Serena Kim (U of Arizona, Tucson, AZ)

--[[User:CJohnson|CJohnson]] 17:56, 22 September 2010 (CDT)

==Edu poster 1==

Here is the Draft Abstract for the Team Wisconsin Education Poster (Viv, WSD, WCBVI and Kevin - no Chelen, I haven't moved...) We welcome comments and edits.

Individuals with disabilities - specifically individuals who are Deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with Spitzer Space Telescope scientists within the NITARP project. Our ultimate goals are threefold; to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with a group of scientists from the Spitzer Science Center during the spring, summer, and fall of 2010. The group coauthored a poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

--[[User:mccarron|KMcCarron]] 10:51, 27 September 2010 (CDT)

Luisa's suggested edits (see email for explanation):

Individuals with disabilities - specifically individuals who are deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with a Spitzer Science Center (SSC) scientist within the NASA-IPAC Teacher Archive Research Project (NITARP). Our ultimate goal is to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with an SSC scientist during the spring, summer, and fall of 2010. The group coauthored another AAS poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

Connie's suggested edits (still 296 words)

Individuals with disabilities - specifically individuals who are deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with a Spitzer Science Center (SSC) scientist within the NASA-IPAC Teacher Archive Research Project (NITARP). Our ultimate goals are threefold; to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with an SSC scientist during the spring, summer, and fall of 2010. The group coauthored another AAS poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

--[[User:mccarron|KMcCarron]] 12:19, 27 September 2010 (CDT)

==Edu poster 2==
(coming very soon)

CG4 Current Research Activities

2010-09-27T17:09:47Z

Mccarron:

=[[CG4 Proposal]]=

This page will be used to assemble the pieces for the proposal we are writing.

=[[CG4 Useful Links]]=
A consolidation of all sorts of useful links, mostly culled from Luisa's email.

=Previous Teams' pages=
[[Lynds Clouds Current Research Activities]] and [[IC 2118 Current Research Activities]]

=[[CG4 Spring work]]=
This page will be used to collect information during our work in Spring.

=[[CG4 Summer visit]]=
This page will be used to collect logistics information about our IPAC visit. The visit is June 14-16. (NB: HOU conference at Yerkes June 20-24.)

=[[CG4 Bigger Picture and Goals]]=
Subject to change! Includes agenda for Summer visit.

=Previously Known Objects in Puppis region (Reipurth and Pettersson 1993)=
{| border="1"
|Star
|RA (J2000)
|Dec (J2000)
|V
|(B-V)
|(U-B)
|Region
|-
|CG-Halpha 1
|07 30 37.77
| -47 25 07.21
| >17
|none
|none
|Sa 101
|-
|CG-Halpha 2
|07 30 57.63
| -46 56 12.50
| >17
|none
|none
|Sa 101
|-
|CG-Halpha 3
|07 31 10.89
| -47 00 33.40
|14.99
|1.60
|0.91
|Sa 101
|-
|CG-Halpha 4
|07 31 21.92
| -46 59 45.14
|14.59
|1.40
|0.92
|Sa 101
|-
|CG-Halpha 5
|07 31 36.65
| -47 00 14.13
|15.25
|1.26
|0.23
|Sa 101
|-
|CG-Halpha 6
|07 31 37.45
| -47 00 22.19
|14.21
|1.42
|0.90
|Sa 101
|-
|CG-Halpha 7
|07 33 26.92
| -46 48 43.51
|13.97
|1.19
|0.84
|CG 4
|-
|CG-Halpha 8
|07 15 49.86
| -48 31 27.16
|15.33
|1.39
|0.13
|CG 13
|-
|PHalpha 92
|08 28 40.73
| -33 46 23.17
|13.38
|1.27
|0.91
|CG 22
|-
|}

=[[Working with L1688]]=
Sample analysis thread using Lynds 1688 (developed in the context of the Lynds Cloud team).

=[[Working with CG4+SA101]]=
An adaptation of "Working with L1688" above, with specific application to our project.

=[[CG4 Fall Work]]=

==Science Abstract==
First draft of Science Abstract:

''We used archival Spitzer data to look for new young stellar objects (YSOs) in Cometary Globule 4 (CG4) in Puppis. CG4 is approximately 1300 parsecs and one of about 30 cometary globules in the Gum Nebula, many of which are known to be forming stars. These globules are pointed generally radially outward from the center of the Vela OB2 association, which is also forming stars. CG4 is dramatic in appearance, and that has brought it to the attention of both scientists and the public. Our team used archival Spitzer InfraRed Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) data and 2 Micron All Sky Survey (2MASS) data, as well as optical data obtained by collaborators. We used infrared excess to find nine previously known YSOs and additional new YSOs in this region. We will primarily use infrared excess to find new YSOs. We used available data to attempt to determine legitimate cluster members, and to separate CG4’s YSOs from other objects with similar spectral energy distributions (SEDs). This research was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by the Spitzer Science Center (SSC).''

Please edit as you see fit.

Luisa's edits:
''We used archival Spitzer infrared data to look for new young stellar objects (YSOs) in Cometary Globule 4 (CG4) in Puppis. CG4 is approximately 1300 parsecs away and one of about 30 cometary globules in the Gum Nebula, many of which are known to be forming stars. CG4 is dramatic in appearance, and that has brought it to the attention of both scientists and the public. Our team used archival Spitzer InfraRed Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) data, combined with 2 Micron All Sky Survey (2MASS) data as well as optical data obtained by collaborators. We used infrared excess to investigate the properties of previously known YSOs in this region and identify additional new candidate YSOs in this region. This research was made possible through the NASA/IPAC Teacher Archive Research Project (NITARP) and was funded by the Spitzer Science Center (SSC).''
rationale for my changes: occasional missing words/wordsmithing. the stuff about radially pointing is indeed true, but not strictly relevant to the abstract (tho' it's appropriate for the main body of the poster in the introduction). 'we will use' = lingering sentence left over i think from editing, since it is redundant with prior sentence. stuff about separating YSOs from contaminants absolutely true, but is implicit in the statement that we've identified YSO candidates -- of course we've attempted to weed out contaminants. there should be some text on that in the main body of the poster, though, for sure.

==Author list ==

Also, send Chelen the names of all additional authors to be listed. For example, I will write the Breck team as ...
Chelen Johnson, Rachel Crump, Anna Laorr, Kayla Mork, Emma Steinbergs, Sara Trautz, Elizabeth Wigley, Sally Caruso, Heather Balenger, Nina Killingstad, Taylor McCanna.
We will identify schools with superscripts and a key. (See previous NITARP posters [http://coolwiki.ipac.caltech.edu/index.php/Posters_and_Handouts_from_AAS_meetings] for an example.)

--[[User:CJohnson|CJohnson]] 20:12, 21 September 2010 (CDT)

you should add me, of course, but also Serena Kim (Univ. Arizona). --[[User:Rebull|Rebull]] 09:09, 22 September 2010 (PDT)

Here's the author list for the AAS science and education posters ...

Chelen Johnson, Rachel Crump, Anna Laorr, Kayla Mork, Emma Steinbergs, Sara Trautz, Elizabeth Wigley, Sally Caruso, Heather Balenger, Nina Killingstad, Taylor McCanna (Breck School, Minneapolis, MN)

Luisa Rebull (SSC/IPAC/CalTech, Pasadena, CA)

Vivian Hoette (University of Chicago, Yerkes Observatory, Williams Bay, WI)

Carolyn Mallory, Michael Feig, Niyaz Mahmud, Tiffany Selic (Pierce College, Woodland Hills, CA)

Kevin McCarron (Oak Park River Forest High School, Oak Park, IL)
Constance Gartner, Jennifer VanDerMolen, Lissa Matche, Anna McCartney (Wisconsin School for the Deaf, Delavan, WI)

Lee Gamble, Mark Doering (Wisconsin Center for the Blind and Visually Impaired, Janesville, WI)

Russ Laher (SSC/IPAC/CalTech, Pasadena, CA)

Mark Legassie (SSC/IPAC/CalTech/Raytheon, Pasadena, CA)

Serena Kim (U of Arizona, Tucson, AZ)

--[[User:CJohnson|CJohnson]] 17:56, 22 September 2010 (CDT)

==Edu poster 1==

Here is the Draft Abstract for the Team Wisconsin Education Poster (Viv, WSD, WCBVI and Kevin - no Chelen, I haven't moved...) We welcome comments and edits.

Individuals with disabilities - specifically individuals who are Deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with Spitzer Space Telescope scientists within the NITARP project. Our ultimate goals are threefold; to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with a group of scientists from the Spitzer Science Center during the spring, summer, and fall of 2010. The group coauthored a poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

--[[User:mccarron|KMcCarron]] 10:51, 27 September 2010 (CDT)

Luisa's suggested edits (see email for explanation):

Individuals with disabilities - specifically individuals who are deaf or hard of hearing (DHH) and/or blind and visually-impaired (BVI) - have traditionally been underrepresented in the fields of Science, Technology, Engineering, and Math (STEM). The low incidence rate of these populations, coupled with geographic isolation, creates limited opportunities for students to work with and receive mentoring by professionals who not only have specialty knowledge in disability areas but also work in STEM fields. For this reason, Yerkes Observatory scientists, along with educators from the Wisconsin School for the Deaf, the Wisconsin Center for the Blind and Visually Impaired, Breck School, and Oak Park and River Forest High School, are engaged in active research with a Spitzer Science Center (SSC) scientist within the NASA-IPAC Teacher Archive Research Project (NITARP). Our ultimate goal is to engage DHH and BVI students with equal success as their sighted and hearing peers, and share our techniques to make astronomy more accessible to DHH and BVI youth and to generate a life-long interest which will lead our students to STEM careers.

This poster tracks our work with an SSC scientist during the spring, summer, and fall of 2010. The group coauthored another AAS poster on finding Young Stellar Objects (YSO) in the CG4 Nebula in Puppis. During the project, the students, scientists and teachers developed a number of techniques for learning the necessary science as well as doing the required data acquisition and analysis for publishing a poster for the American Astronomical Society. Additionally, collaborations were formed between students with disabilities and their their non-disabled peers to create multi-media projects. Ultimately, the projects created for our work with NITARP will be disseminated through our professional connections in order to ignite a passion for astronomy in all students - with and without disabilities.

==Edu poster 2==
(coming very soon)

CG4 Current Research Activities

2010-09-27T15:51:02Z

Mccarron:

CG4 Current Research Activities

2010-09-27T15:47:17Z

Mccarron:

CG4 Current Research Activities

2010-09-27T15:44:24Z

Mccarron:

Talk:CG4 Current Research Activities

2010-09-27T15:40:26Z

Mccarron: Created page with 'Some Discussion for Wisconsin School for the Deaf Education Poster If we need more for abstract, below: (and if not for abstract, probably for the poster itself) Like Yerkes Ob…'

Some Discussion for Wisconsin School for the Deaf Education Poster

If we need more for abstract, below: (and if not for abstract, probably for the poster itself)

Like Yerkes Observatory, the Wisconsin School for the Deaf has a long and rich history in the local community. Established in 1852, the school has been in continuous operation as the only residential school for Deaf and Hard of Hearing students in the state of Wisconsin. Currently, the school has approximately 120 students enrolled pre-school through grade 12, with approximately 66% of the student body residing there during the week. The school adheres to a Bilingual-Bicultural model of education which ensures that students graduating from the program have fluency in two languages – American Sign Language (ASL) and English – and be contributing members of two communities – the American Deaf community and the community at large. Instruction is provided in ASL and English (via written or spoken forms) and its curriculum is based on Wisconsin’s Model Academic State Standards. While WSD currently serves approximately 10% of the DHH children in the state, it is part of a larger service providing network known as the Wisconsin Educational Services Program for Deaf and Hard of Hearing (WESP-DHH) operated under the auspices of the Wisconsin Department of Public Instruction (DPI). Together with WSD, WESP-DHH serves approximately X% of Wisconsin’s DHH students through outreach programs and educational opportunities.

If we have WSD info, we should probably have WCBVI info. Then I’d have to work with Lee on some of the more detailed details ...
** I think we should also have info about the other schools and educational settings. - Viv

(Below) should definately be part of the poster ... but probably not the abstract

Stuff I took out, but could be persuaded to put back in...

Astronomy has been done effectively by people with disabilities for hundreds of years, yet we’ve failed to make astronomy easily accessible to high school and middle school students in America. Famous astronomers such as Annie Jump Cannon and Henrietta Swan-Leavitt were deaf and Dr. Edwin Frost was blind. They each made significant contributions to the field.

Viv - we probably need to explain early on, and include the Spitzer scientists. So I added words in the first paragraph. I also put in the (DHH) and (BVI) acronyms.
The nature of this education poster will probably not address the way Carolyn’s college is involved, and Carolyn is putting in her own education poster. But the question remains if our poster should also include her perspective.

Talk:CG4 Spring work

2010-04-21T22:15:16Z

Mccarron:

=For Apr 14: KEVIN -- Reipurth and Pettersson 1993 =
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1993A%26A...267..439R&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

==''Main Point''==
Found 8 new YSOs in Gum Nebula (near CG4 and Sa101 and CG13) using IR photometry, UBV photometry and spectroscopy.

==''High Level Summary''==
Surveyed 5 fields with 15 cometary globules
Found 8 new YSOs
Confirmed one previous YSO

Equipment Used

Ha spectroscopy CTIO 60/90cm Curtis Schmidt telescope with 6deg prism 1-2hrs
JHK IR photometry (sort of like us) ESO 1m J-H and H-K
UBV photometry (like us) ESO 1m
Point source spectroscopy ESO 1.52m and 3.6m 3700A to 7000A 10-40 min

found there are different ages (spectra and movement away from globule)
Found late-type premain sequence stars

Identified spectral type using spectra
ruled out forground/background with spectra and

==''Most Interesting''==
Introduction:
Good description of cometary nebulae
Good rundown of CG formation theory
1. OB starformed nearby and the UV radiation scrunched and eroded nearby nebula (some evidence in this paper for this method)
2. or SN went off nearby and shockwave scrunched and eroded nearby nebula
CG4 might have been evaporating for 1,000,000years

CG4 might have been a shade for Sa101 to hide behind. Until the
CG4 evaporation may have started >1,000,000 years ago.
In faint background stars they found stars becoming more prominent as they used longer wavelength filters (good for us)

Spectral classes
M3 to K7
M2, M3-4, K7-M0, K7, K2-5, K5, M1-2, K2

==''Not sure about this''==
Questions and Kevin trying to dodge the answers

TiO and MgH
using the width and

Ha

width of line (spinning?)

Balmer series
forbidden [OI] linesat 6300 and 6363A
prominent absorption at 5577A
absorbtion trough at 6200A deeper

==''I agree with this''==

found eight new YSOs in the area
confirmed one previous YSO
found there are different ages (spectra and movement away from globule)
Found late-type premain sequence stars

==''I disagree with this''==
found there are different ages (spectra and movement away from globule)
probably continuous (from 8 stars?)

==''Why we should care''==

found seven new YSOs in the area
confirmed one previous YSO
Used some of the same techniques we will
Found YSOs and confirmed previous ones
Found faint background stars getting more prominent in longer wavelength filters
Not all CG had star formation but CG4 was one that had some nearby

=For Apr 21: VIVIAN -- Kim et al 2003=
http://adsabs.harvard.edu/abs/2003csss...12..799K
Full Paper link click here. [http://origins.colorado.edu/cs12/proceedings/poster/kimxx.pdf]

==''Main Point''==

==''High Level Summary''==

==''Most Interesting''==

==''I agree with this''==

==''I disagree with this''==

==''Why we should care''==

=For Apr 28: CHELEN -- Kim 2005 =
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2003ASPC..287..275K&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

==''Main Point''==

==''High Level Summary''==

==''Most Interesting''==

==''I agree with this''==

==''I disagree with this''==

==''Why we should care''==

=For May 5: CAROLYN -- Choudhury and Bhatt 2008 =
http://arxiv.org/PS_cache/arxiv/pdf/0811/0811.4389v1.pdf
the ADS entry is http://adsabs.harvard.edu/abs/2009MNRAS.393..959C and I downloaded the real journal article for you (easier to read!) here: [[media:choud.pdf]]

==''Main Point''==

==''High Level Summary''==

==''Most Interesting''==

==''I agree with this''==

==''I disagree with this''==

==''Why we should care''==

Talk:CG4 Spring work

2010-04-21T22:14:21Z

Mccarron:

=For Apr 14: KEVIN -- Reipurth and Pettersson 1993 =
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1993A%26A...267..439R&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

==''Main Point''==
Found 8 new YSOs in Gum Nebula (near CG4 and Sa101 and CG13) using IR photometry, UBV photometry and spectroscopy.

==''High Level Summary''==
Surveyed 5 fields with 15 cometary globules
Found 8 new YSOs
Confirmed one previous YSO

Equipment Used

Ha spectroscopy CTIO 60/90cm Curtis Schmidt telescope with 6deg prism 1-2hrs
JHK IR photometry (sort of like us) ESO 1m J-H and H-K
UBV photometry (like us) ESO 1m
Point source spectroscopy ESO 1.52m and 3.6m 3700A to 7000A 10-40 min

found there are different ages (spectra and movement away from globule)
Found late-type premain sequence stars

Identified spectral type using spectra
ruled out forground/background with spectra and

==''Most Interesting''==
Introduction:
Good description of cometary nebulae
Good rundown of CG formation theory
1. OB starformed nearby and the UV radiation scrunched and eroded nearby nebula (some evidence in this paper for this method)
2. or SN went off nearby and shockwave scrunched and eroded nearby nebula
CG4 might have been evaporating for 1,000,000years

CG4 might have been a shade for Sa101 to hide behind. Until the
CG4 evaporation may have started >1,000,000 years ago.
In faint background stars they found stars becoming more prominent as they used longer wavelength filters (good for us)

Spectral classes
M3 to K7
M2, M3-4, K7-M0, K7, K2-5, K5, M1-2, K2

==''Not sure about this''==
Questions and Kevin trying to dodge the answers
TiO and MgH
using the width and

Ha

width of line (spinning?)

Balmer series
forbidden [OI] linesat 6300 and 6363A
prominent absorption at 5577A
absorbtion trough at 6200A deeper

==''I agree with this''==

found eight new YSOs in the area
confirmed one previous YSO
found there are different ages (spectra and movement away from globule)
Found late-type premain sequence stars

==''I disagree with this''==
found there are different ages (spectra and movement away from globule)
probably continuous (from 8 stars?)

==''Why we should care''==

found seven new YSOs in the area
confirmed one previous YSO
Used some of the same techniques we will
Found YSOs and confirmed previous ones
Found faint background stars getting more prominent in longer wavelength filters
Not all CG had star formation but CG4 was one that had some nearby

=For Apr 21: VIVIAN -- Kim et al 2003=
http://adsabs.harvard.edu/abs/2003csss...12..799K
Full Paper link click here. [http://origins.colorado.edu/cs12/proceedings/poster/kimxx.pdf]

==''Main Point''==

==''High Level Summary''==

==''Most Interesting''==

==''I agree with this''==

==''I disagree with this''==

==''Why we should care''==

=For Apr 28: CHELEN -- Kim 2005 =
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2003ASPC..287..275K&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

==''Main Point''==

==''High Level Summary''==

==''Most Interesting''==

==''I agree with this''==

==''I disagree with this''==

==''Why we should care''==

=For May 5: CAROLYN -- Choudhury and Bhatt 2008 =
http://arxiv.org/PS_cache/arxiv/pdf/0811/0811.4389v1.pdf
the ADS entry is http://adsabs.harvard.edu/abs/2009MNRAS.393..959C and I downloaded the real journal article for you (easier to read!) here: [[media:choud.pdf]]

==''Main Point''==

==''High Level Summary''==

==''Most Interesting''==

==''I agree with this''==

==''I disagree with this''==

==''Why we should care''==

Talk:CG4 Spring work

2010-04-14T23:03:01Z

Mccarron:

For Apr 14:

* KEVIN -- Reipurth and Pettersson 1993
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1993A%26A...267..439R&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

*''Main Point''
Found 8 new YSOs in Gum Nebula (near CG4 and Sa101 and CG13) using IR photometry, UBV photometry and spectroscopy.

*''High Level Summary''
Surveyed 5 fields with 15 cometary globules
Found 8 new YSOs
Confirmed one previous YSO

Equipment Used

Ha spectroscopy CTIO 60/90cm Curtis Schmidt telescope with 6deg prism 1-2hrs
JHK IR photometry (sort of like us) ESO 1m J-H and H-K
UBV photometry (like us) ESO 1m
Point source spectroscopy ESO 1.52m and 3.6m 3700A to 7000A 10-40 min

found there are different ages (spectra and movement away from globule)
Found late-type premain sequence stars

Identified spectral type using spectra
ruled out forground/background with spectra and

*''Most Interesting''
Introduction:
Good description of cometary nebulae
Good rundown of CG formation theory
1. OB starformed nearby and the UV radiation scrunched and eroded nearby nebula (some evidence in this paper for this method)
2. or SN went off nearby and shockwave scrunched and eroded nearby nebula
CG4 might have been evaporating for 1,000,000years

CG4 might have been a shade for Sa101 to hide behind. Until the
CG4 evaporation may have started >1,000,000 years ago.
In faint background stars they found stars becoming more prominent as they used longer wavelength filters (good for us)

Spectral classes
M3 to K7
M2, M3-4, K7-M0, K7, K2-5, K5, M1-2, K2

*''Not sure about this''
Quesitons and Kevin trying to dodge the questions
TiO and MgH
using the width and

Ha

width of line (spinning?)

Balmer series
forbidden [OI] linesat 6300 and 6363A
prominent absorption at 5577A
absorbtion trough at 6200A deeper

*''I agree with this''

found eight new YSOs in the area
confirmed one previous YSO
found there are different ages (spectra and movement away from globule)
Found late-type premain sequence stars

*''I disagree with this''
found there are different ages (spectra and movement away from globule)
probably continuous (from 8 stars?)

*''Why we should care''

found seven new YSOs in the area
confirmed one previous YSO
Used some of the same techniques we will
Found YSOs and confirmed previous ones
Found faint background stars getting more prominent in longer wavelength filters
Not all CG had star formation but CG4 was one that had some nearby

For Apr 21:
*VIVIAN -- Kim et al 2003 http://adsabs.harvard.edu/abs/2003csss...12..799K
Full Paper link click here. [http://origins.colorado.edu/cs12/proceedings/poster/kimxx.pdf]

*''Main Point''

*''High Level Summary''

*''Most Interesting''

*''I agree with this''

*''I disagree with this''

*''Why we should care''

For Apr 28:
*CHELEN -- Kim 2005
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2003ASPC..287..275K&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

*''Main Point''

*''High Level Summary''

*''Most Interesting''

*''I agree with this''

*''I disagree with this''

*''Why we should care''

For May 5:
*CAROLYN -- Choudhury and Bhatt 2008
http://arxiv.org/PS_cache/arxiv/pdf/0811/0811.4389v1.pdf
the ADS entry is http://adsabs.harvard.edu/abs/2009MNRAS.393..959C
and I downloaded the real journal article for you (easier to read!) here: [[media:choud.pdf]]

*''Main Point''

*''High Level Summary''

*''Most Interesting''

*''I agree with this''

*''I disagree with this''

*''Why we should care''

Talk:CG4 Spring work

2010-04-14T22:59:14Z

Mccarron:

2010-02-08T23:30:38Z

Mccarron:

Please see a very raw first cut at writing the Introduction and Background for The Proposal. You already feel free to edit, right? This gives a place to start, or a decision to start over.
--[[User:Mallory|Mallory]] 12:43, 3 February 2010 (PST)

Draft (Can't find name & time stamp on this page. Many additions and heavily edited Superbowl-Sunday 7 Feb. 2010,10:42 p.) (No, 11:30 p.)

STAR FORMATION IN CG4

What factors can make Nebulae, ordinary clouds of hydrogen and helium and perhaps some tritium gas, plus dust of common silicate compounds, which appear widely throughout the plane of The Milky Way/or any galaxy, overcome the plentiful disruptive forces in their environments, and form stars? When can the classically interpreted Force of Gravity, overwhelm the dispersive effect of radiation, and force collapse into a star, on a cloud of gas and dust?

What is the importance of Young Stars? On the local scale, even small stars usually form discs, which often coalesce into planets; some may be Earth-Like planets. On a more grand scale, formation and evolution of different types of stars, changes gas and dust and chemical composition of Galaxies; which are the structural components of the universe, i.e. Galaxie Changes, causes evolution of the Universe.

The Cometary Globules CG4 (R. A. 7 degrees 34’ 9”, Dec -56 degrees, Ecliptic Co-ords.) is an excellent site to study formation of stars. Using this Locale, we will attempt to answer three questions: Will Stars Form Here? If So, Is Their Formation Triggered? and, Has a Whole Cluster Been Formed?

The CG4- Gum Nebula environment is chosen because the area is visually, photometrically dense with star-forming material. USNO http://www.nofs.navy.mil/data/fchPix used to determine opacity of nebula and optical magnitude. Through our collaborator J.S. Kim (U. AZ.) we have access to CG4 optical data in BVRI filters from the CTIO 0.9m. Extrapolating from this info may permit us to predict where and why new stars form. We plan to use Spitzer MIPS data, available in far IR 24, 70, 160 mm wavelengths to detect warm/collapsing gas clouds/protostars. Additional indication of YSOs is available by using POSS 8000 mm data to reveal the near IR signature of excess IR coming from a newly-forming star. Spitzer data is especially well-suited to detect the presence of PAHs on the surfaces of collapsing dust/gas clouds, in 6 & 8 mm, and to comfirm YSOs' excess gases BiPolar outflow in 4.6 and 5.5 mm IR. Using Spectral Energy Distribution data, newly formed stars can be both identified and classified. The primary goal of this research: Determination of Star Formation in CG4, can be achieved.

Conditional on the outcome of the first research step; The second step in our research is to determine whether this is Triggered Star Formation.(See “Spitzer Observations of IC 2118.) The outcome of this important research question will help to determine the Rate of Star Formation in the Universe. The presence of both O & B superstars, copious UV and gamma emitters, plus Supernova Remnants indicating stupendous interstellar explosions, suggest an energetic nebular environment. We verified this using Multiwavelength Photometric Studies, similar to (Kim,S. et al, "Triggered Low Mass Star Formation in the Gum Nebula", 2003). A similar environment, see Spitzer Observations of IC 2118, confirm this idea. The Skyview Telescope (http://skyview.gsfc.nasa.gov) shows radiation at all wavelengths and images at all wavelengths, of excited gas/dust in the selected region. Through our collaborator J.S. Kim (U. AZ)we have access to X-ray data from XMM, Epic and PN images that cover CG4. X-ray + UV presence may have triggered star formation by providing compression pressure onto collapsing nebula gas-knots, or destroyed them by photo-evaporation.

Skyview Telescope (http://skyview.gsfc.nasa.gov)) shows radiation at all wavelengths and images at all wavelengths of excited gas/dust in the selected region. In addition, O & B Stars, as well as supernova remnants of their cousin stars, reside in the nearby Vela Nebula.

Our Final Question related to Star Formation in CG4, "Has a Whole Star Cluster Been Formed", has to be approached carefully, since it is so easy to confuse a foreground/background star with actual Cluster Members. The finest tool to accomplish the identification of Stars Which Are Cluster Members, resides on the IPAC website. What the techniques boils down to, is to determine all YSOs in an area, and be sure they are all the same age. If they are the same age, it is likely they are all members of the same cluster. Some characteristics they should all have/all have in common, are: IR excess; flaring/in X-rays; flaring /in radio/emmission from stellar active regions, like Sun Spots; BiPolar outflows (detectable in IR & optical as emitted jets); emission lines (from accreting matter); variability (not quite in equilibrium yet); fast rotation rate (concervation of Angular Momentum); UV flaring/mass accretion; spatial location huddled together; similar brightness; common spatial motion as they glide through space loosely gravitationally bound together.

Spitzer is good at determining these qualities of stars. It is so sensitive that it can see nearly to the 'edge' of the Universe, and integrate data in just a handful of seconds. Further, Spitz, will see the excess IR from the Planatary Disc of a newly formed star, before it gets dissipated, and that will record as a Spare Tire IR Excess. Chandra and XMM data will be helpful in detecting X-ray flares due to large magnetic field, from rapid rotation inducing emission flares in X-ray wavelength.

Proposal for CG4 Group

Goal: We are looking for new young stellar objects (YSO) in the cometary nebula CG4 in Puppis. These objects will tell us about cometary globules and conditions within them. We will find information about the structures in the globule, their history and possibly their future.

Stars form in regions of dense dust and gas in the interstellar medium (ISM). The process is....

Cometary globule CG4 is approximately 450 parsec away. It is a part of a larger structure in the Milky Way. It is one of a number of cometary globules in the area pointed away from a common center, possibly the Vela supernova remnant. CG4 is a nearby and dramatic cometary globule, so it is of interest to scientists and the public. Recent visible and visible/infrared mosaics have been featured in Astronomy Magazine and Science News Magazine.

Method: Our team will use Spitzer IRAC and MIPS data (programs 202, 462, 20714), 2MASS data, and XMM-Newton x-ray data. We expect to find the previously known YSOs (Reipurth and Petersson 1993) and additional YSOs in star-forming regions. We will find other candidate objects using infrared excess across different wavelengths. There will be some non-members in this candidate group. Along with YSOs in the cluster, we expect to find extragallactic sources (active galactic nuclei anything else ?). We will use x-ray data, phtometric data and astrometry to determine cluster membership and separate YSOs from other objects with IR excess.

We will use x-ray data from the . We will use astrometry to find proper motion using the Digitized Sky Survey plates and more recent images from CTIO 0.9m telescope.

We propose using IRAC, MIPS and 2MASS data archives along with XMM-Newton satellite data, photometric data (BVRI) from the CTIO 0.9m telescope and astrometric data from the Digitized Sky Survey and more recent images with the CTIO 0.9m telescope to investigate:
1. Star formation; look for likely cluster member stars with infrared excesses, and
2. characterize this young star population by obtaining colors and estimates of masses and ages;
3. study the distribution of stars, compare the young star population, distribution, and age to other similar sites of star formation.