Astron. Astrophys. 362, 635-645 (2000)

Submillimeter maps of small young clusters in three large globules

T.L. Huard ¹, D.A. Weintraub ¹ and G. Sandell <sup>2

1</sup> Department of Physics and Astronomy, Vanderbilt University, P.O. Box 1807 Station B, Nashville, TN 37235, USA (tracy.huard,david.weintraub@vanderbilt.edu)
² National Radio Astronomy Observatory ^*, P.O. Box 2, Green Bank, WV 24944, USA (gsandell@nrao.edu)

Received 24 November 1999 / Accepted 4 May 2000

Abstract

We present submillimeter maps of regions within three large globules, CB 3, CB 34, and L 810. Our maps are centered on three IRAS sources, each of which is associated with a small cluster of near-infrared young stellar objects (YSOs) as seen from deep optical and/or near-infrared observations. We have detected submillimeter sources associated with the YSO clusters. The submillimeter emission appears to be primarily from small clusters of protostars rather than from the sources previously detected in the near-infrared. This result suggests that these large globules are currently adding protostars to these clusters. Thus, star formation within each of these large globules appears to be a continuous process rather than a single, isolated event.

Key words: stars: formation stars: pre-main sequence ISM: clouds ISM: dust, extinction ISM: individual objects: CB34 L810

* The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

Send offprint requests to: T.L. Huard

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Contents

• 1. Introduction
• 2. Observations
• 3. Results
  • IRAS 00259+5625 in CB 3
  • IRAS 05440+2059 in CB 34
  • IRAS 19433+2743 in L 810
• 4. Discussion and conclusion
• Acknowledgements
• References

© European Southern Observatory (ESO) 2000

Online publication: October 24, 2000
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