The Spitzer c2d survey of large, nearby, interstellar clouds. VII. Ophiuchus observed with MIPS

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

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

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.

OriginalsprogEngelsk
TidsskriftAstrophysical Journal
Vol/bind672
Udgave nummer2
Sider (fra-til)1013-1037
Antal sider25
ISSN0004-637X
DOI
StatusUdgivet - 10 jan. 2008
Eksternt udgivetJa

ID: 234017550