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Star formation in the LMC: gravitational instability and dynamical triggering

Published online by Cambridge University Press:  01 August 2006

You-Hua Chu ,
Robert A. Gruendl  and
Chao-Chin Yang
You-Hua Chu
Affiliation:
Astronomy Department, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA email: [email protected], [email protected], [email protected]
Robert A. Gruendl
Affiliation:
Astronomy Department, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA email: [email protected], [email protected], [email protected]
Chao-Chin Yang
Affiliation:
Astronomy Department, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA email: [email protected], [email protected], [email protected]
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Abstract

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Evidence for triggered star formation is difficult to establish because energy feedback from massive stars tend to erase the interstellar conditions that led to the star formation. Young stellar objects (YSOs) mark sites of current star formation whose ambient conditions have not been significantly altered. Spitzer observations of the Large Magellanic Cloud (LMC) effectively reveal massive YSOs. The inventory of massive YSOs, in conjunction with surveys of interstellar medium, allows us to examine the conditions for star formation: spontaneous or triggered. We examine the relationship between star formation and gravitational instability on a global scale, and we present evidence of triggered star formation on local scales in the LMC.

Keywords

stars: formationstars: pre-main-sequenceISM: evolutionISM: structuregalaxies: ISMMagellanic Clouds
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 192 - 198
Copyright
Copyright © International Astronomical Union 2007

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