Computer Science
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop..202f&link_type=abstract
Spitzer Proposal ID #202
Computer Science
Scientific paper
Bright-rimmed clouds (BRCs) contain dense molecular gas cores with at least one edge illuminated by a hot high-mass star, and as such they are good laboratories for the study of radiation-implosion driven star formation. The goal of this program is to obtain a complete census of protostars and young stars in a distance-limited sample of BRCs. The spatial distributions of the embedded protostars and young stars will be analyzed for signatures of sequential, or triggered, star formation. We plan to image a sample of 20 BRCs in the four IRAC bands and in the 24 micron band of MIPS. The sample is drawn from that of Sugitani et al. (1991, 1994) for BRCs within 1 kpc of the Sun. Since these sources are relatively compact, no mapping is required. The IRAC observations will consist of 5 dithered images centered on the source to encompass both the bright rim and the IRAS source contained within the core. The images will be obtained in the 12-sec HDR mode. MIPS photometry observations will be obtained at 24 microns, using an integration time at 24 microns of 10 seconds. The IRAC and MIPS observations each require about 9 minutes per source. The entire program will require a total time of approximately 6 hours.
Fazio Giovanni
Megeath Tom
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