Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.3021b&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #30.21; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We identify and classify populations of young stellar objects (YSO) in eighteen Bright-Rimmed Clouds (BRC) observed by Spitzer with IRAC (at 3.6, 4.5, 5.8, and 8.0 μm) and MIPS (at 24 and 70 μm). Our sample was selected from the BRC catalogs of Sugitani et al. (1991, Northern Sample, and 1994, Southern Sample). Each cloud in that catalog contains an IRAS point source, evidence that star formation had occurred or is occurring there. We analyze the spatial distribution of the clusters and the types of YSO present, as well as the bolometric luminosity and temperature for sources with good detections at 70 μm. We discuss the correlation between ratio of classes of YSO in the clouds and the evolutionary stage of the cluster. We also investigate bolometric temperature of sources as an indication of evolutionary stage, and find that the results agree with the classifications from color space. Finally, we compare the positions and luminosities of the IRAS point sources with the IRAC and MIPS sources. We find that the luminosities agree to within an order of magnitude.
Allen Lew
Ballard Sarah
Gutermuth Robert
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