PROGRAM INFORMATION
+ Home Page
+ Program News
+ Applications being accepted... go here
+ Round 1
+ Round 2
+ Round 3
+ Round 4
+ Round 5
+ Round 6
+ (All programs)
+ Accomplishments
+ Educational Products
+ AAS Posters & Photos
+ Press Coverage
+ Visiting the SSC
+ Policies and Procedures
CURRENT TEAMS
+ Round 6
Other EPO programs using real data
|
Round 4 - Star Formation in CG4
|
Abstract
We propose to look for new young stellar objects (YSOs) in Cometary
Globule 4 (CG4) in Puppis. We will attempt to answer the following
questions:
- Will (additional) stars form here?
- What triggers star formation?
- Has a cluster formed?
CG4 is approximately 1300 parsecs/4680 LY away. It is one of about 30
cometary globules in the Gum Nebula (Choudhury and Bhatt 2008), 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. Recent visible and visible/infrared mosaics
have been featured in Astronomy Magazine and Science News Magazine.
Our team will use archival Spitzer InfraRed Array Camera (IRAC) and
Multiband Imaging Photometer for Spitzer (MIPS) data, 2 Micron All Sky
Survey (2MASS) data, and XMM-Newton/ESA x-ray spectroscopy data from
that space telescope, as well as optical data obtained by
collaborators. We expect to recover the previously known YSOs
(Reipurth and Pettersson 1993) and find additional new YSOs in this
region. We will primarily use infrared excess to find new YSOs. There
may be some non-member CG4 objects in this candidate group; so, along
with CG4's YSOs, we may find extragalactic sources (i.e., active
galactic nuclei, etc.) and other stars from our Galaxy. We will use
all available data to attempt to determine legitimate cluster members,
and to separate CG4's YSOs from other objects with similar spectral
energy distributions (SEDs).
Click on any teacher's name to see activities associated with NITARP.
|
|
Mentor Teacher:
Participating Teachers:
Participating non-science IPAC staff:
Russ Laher
Spitzer Science Center, Caltech, Pasadena, CA
Mark Legassie
Raytheon and Spitzer Science Center, Caltech, Pasadena, CA
Support Scientist:
Dr. Luisa Rebull
Spitzer Science Center, Caltech, Pasadena, CA
|
Proposal (pdf)
science poster (pdf)
education poster 1 (pdf)
education poster 2 (pdf)
journal article (pdf)
|
|
