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

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, Jes K. Jørgensen, David W Koerner, Philip C. Myers, Annelia I. SargentPeter Teuben, Ewine F. Van Dishoeck, Zahed Wahhaj, Kaisa E. Young

Research output: Contribution to journalArticle

70 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)1013-1037
Number of pages25
JournalAstrophysical Journal
Volume672
Issue number2
DOIs
StatePublished - Jan 10 2008

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Keywords

  • Infrared: stars
  • ISM: clouds
  • Stars: formation

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Padgett, D. L., Rebull, L. M., Stapelfeldt, K. R., Chapman, N. L., Lai, S. P., Mundy, L. G., Evans, N. J., Brooke, T. Y., Cieza, L. A., Spiesman, W. J., Noriega-Crespo, A., McCabe, C. E., Allen, L. E., Blake, G. A., Harvey, P. M., Huard, T. L., Jørgensen, J. K., Koerner, D. W., Myers, P. C., ... Young, K. E. (2008). The Spitzer c2d survey of large, nearby, interstellar clouds. VII. Ophiuchus observed with MIPS. Astrophysical Journal, 672(2), 1013-1037. https://doi.org/10.1086/523883