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Evidence for triggered star formation in the Carina Flare supershell

Published online by Cambridge University Press:  01 August 2006

Joanne Dawson ,
A. Kawamura ,
N. Mizuno ,
T. Onishi  and
Y. Fukui
Joanne Dawson
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan. Email: [email protected]
A. Kawamura
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan. Email: [email protected]
N. Mizuno
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan. Email: [email protected]
T. Onishi
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan. Email: [email protected]
Y. Fukui
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan. Email: [email protected]
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Abstract

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Theory predicts the triggered formation of molecular clouds stars through the fragmentation and collapse of swept-up ambient gas. Yet the majority of Galactic HI shells show no more than a scattering of small molecular clouds. The Carina Flare supershell (Fukui et al. 1999) is a rare example of an HI shell with a striking molecular component. Here we present the large-scale morphology of the molecular and atomic gas and the location of YSO candidates. A detailed look at two molecular clumps in the shell walls reveals active, intermediate mass star forming regions at various stages of early evolution.

Keywords

ISM: bubblesISM: structurestars: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 406
Copyright
Copyright © International Astronomical Union 2007

References

Fukui, Y., Onishi, T., Kawamura, A., Tachihara, K., Yamaguchi, R., Mizuno, A., & Ogawa, H. 1999, PASJ 751, 51Google Scholar