CG4 Current Research Activities

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)

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

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.

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 [1] for an example.)

--chj 21-September-2010

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