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Young Stellar Objects in the Low-Metallicity Small Magellanic Cloud

Published online by Cambridge University Press:  21 March 2013

M. Sewiło ,
L. R. Carlson ,
J. P. Seale ,
R. Indebetouw ,
M. Meixner ,
B. A. Whitney ,
T. R. Robitaille ,
J. M. Oliveira  and
K. Gordon
M. Sewiło
Affiliation:
The Johns Hopkins University, Baltimore, MD, USA, email: msewilo@pha.jhu.edu
L. R. Carlson
Affiliation:
Leiden Observatory, Leiden, The Netherlands
J. P. Seale
Affiliation:
Space Telescope Science Institute, Baltimore, MD, USA
R. Indebetouw
Affiliation:
University of Virginia, Charlottesville, VA, USA
M. Meixner
Affiliation:
Space Telescope Science Institute, Baltimore, MD, USA
B. A. Whitney
Affiliation:
Space Science Institute, Boulder, CO, USA
T. R. Robitaille
Affiliation:
Max Planck Institute for Astronomy, Heidelberg, Germany
J. M. Oliveira
Affiliation:
Keele University, Keele, UK
K. Gordon
Affiliation:
Space Telescope Science Institute, Baltimore, MD, USA
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Abstract

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The Spitzer Legacy Program “Surveying the Agents of Galaxy Evolution in the Tidally-Stripped, Low-Metallicity Small Magellanic Cloud” (SAGE-SMC; Gordon et al. 2011) allows a global study of star formation in the SMC at high enough resolution to resolve individual cores and protostars at a range of mid-IR wavelengths. Using the SAGE-SMC IRAC (3.6 - 8.0 μm) and MIPS (24 and 70 μm) catalogs and images combined with the near-IR and optical data, we identified a population of ∼1100 intermediate- to high-mass Young Stellar Objects (YSOs) in the SMC (3 × more than previously known). We investigate the properties of the YSOs and how they relate to the galaxy's structure and gas and dust distribution.

Keywords

Magellanic Clouds — stars: formation — HII regions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S292: Molecular Gas, Dust, and Star Formation in Galaxies , August 2012 , pp. 112
Copyright
Copyright © International Astronomical Union 2013

References

Gordon, K. D., Meixner, M., Meade, M. R., et al. 2011, A&A, 30, 490Google Scholar
Gruendl, R. A. & Chu, Y.-H. 2009, ApJS, 184, 172CrossRefGoogle Scholar
Robitaille, T. P., Whitney, B. A., Indebetouw, R., et al. 2006, ApJS, 167, 256Google Scholar
Whitney, B. A., Sewiło, M., Indebetouw, R., et al. 2008, ApJ, 136, 18CrossRefGoogle Scholar