The Spitzer c2d Survey Of Large, Nearby, Interstellar Clouds. VII. Ophiuchus Observed With MIPS

We present maps of 14.4 deg 2 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 nonYstar-forming portions of these clouds. Using PSF-fitting photometry, we detect 5779 sources at 24 m and 81 sources at 70 m at the 10 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 24Š color-magnitude diagrams, as compared to 24 m 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.