Physics
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop20452s&link_type=abstract
Spitzer Proposal ID #20452
Physics
Scientific paper
The Carina Nebula is arguably the best available laboratory for studying active star formation threatened by feedback from extremely massive stars, including several of the most luminous O-type stars known, WR stars, and Eta Carinae. It is close enough that we can study the low-mass stellar population, we can detect protoplanetary disks and jets, and we can spatially resolve individual stars, star-forming cores, and ultracompact HII regions. Thus, we can identify the dominant physical processes at work to gain insight to the detailed processes occurring in extragalactic starbursts. The main long-term goal is to determine if detailed models derived from study of Orion and Taurus can be applied in more extreme regions like Carina, or in what ways they need to be modified. During our Cycle 1 IRAC survey of the Carina Nebula, one of our primary targets was not observed due to position angle constraints in a large mosaic. The present proposal asks for a small amount of additional time (1.3 hr) to include this target in the survey and properly complete the Cycle 1 program. Thus, the text for much of this proposal is similar to the Cycle 1 proposal. This region is a vivid example of second generation (possibly triggered) star formation, containing compact IR sources, a parsec scale Herbig-Haro jet, and a giant dust pillar that points toward Eta Carinae.
Churchwell Edward
Smith Nathan
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