The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. VII. Ophiuchus Observed with MIPS

January 2008 • 2008ApJ...672.1013P

Authors • Padgett, Deborah L. • Rebull, Luisa M. • Stapelfeldt, Karl R. • Chapman, Nicholas L. • Lai, Shih-Ping • Mundy, Lee G. • Evans, Neal J., II • Brooke, Timothy Y. • Cieza, Lucas A. • Spiesman, William J. • Noriega-Crespo, Alberto • McCabe, Caer-Eve • Allen, Lori E. • Blake, Geoffrey A. • Harvey, Paul M. • Huard, Tracy L. • Jørgensen, Jes K. • Koerner, David W. • Myers, Philip C. • Sargent, Annelia I. • Teuben, Peter • van Dishoeck, Ewine F. • Wahhaj, Zahed • Young, Kaisa E.

Abstract • We present maps of 14.4 deg² of the Ophiuchus dark clouds observed by the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). These high-quality maps depict both numerous point sources and extended dust emission within the star-forming and non-star-forming portions of these clouds. Using PSF-fitting photometry, we detect 5779 sources at 24 μm and 81 sources at 70 μm at the 10 σ level of significance. Three hundred twenty-three candidate young stellar objects (YSOs) were identified according to their positions on the MIPS/2MASS K versus K - [ 24] color-magnitude diagrams, as compared to 24 μm detections in the SWIRE extragalactic survey. We find that more than half of the YSO candidates, and almost all those with protostellar Class I spectral energy distributions, are confined to the known cluster and aggregates.

Links

• PREPRINT http://arxiv.org/abs/0709.3492
• ELECTR https://iopscience.iop.org/article/10.1086/523883
• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2008ApJ...672.1013P
• PDF https://iopscience.iop.org/article/10.1086/523883/pdf
• DATA https://irsa.ipac.caltech.edu/bibdata/2008/P/2008ApJ...672.1013P.html