The Spitzer c2d survey of large, nearby, interstellar clouds. VII. Ophiuchus observed with MIPS
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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.
Originalsprog | Engelsk |
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Tidsskrift | Astrophysical Journal |
Vol/bind | 672 |
Udgave nummer | 2 |
Sider (fra-til) | 1013-1037 |
Antal sider | 25 |
ISSN | 0004-637X |
DOI | |
Status | Udgivet - 10 jan. 2008 |
Eksternt udgivet | Ja |
ID: 234017550