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Dense core evolutions induced by shock triggering and turbulent dissipation

Published online by Cambridge University Press:  01 August 2006

Kengo Tachihara ,
A. Hayashi ,
T. Onishi ,
A. Mizuno  and
Y. Fukui
Kengo Tachihara
Affiliation:
Graduate School of Science and Technology, Kobe University, 1-1 Rokko-dai, Nada-ku, Kobe, 657-8501, Japan email: tatihara@kobe-u.ac.jp
A. Hayashi
Affiliation:
Department of Astrophysics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
T. Onishi
Affiliation:
Department of Astrophysics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
A. Mizuno
Affiliation:
Solar-Terrestrial Environment Laboratory, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
Y. Fukui
Affiliation:
Department of Astrophysics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
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External shock triggering and internal turbulence play major role for the condensation of the ISM and star formation. Some evidences of shock triggering by non-isotropic compression are seen in the cloud morphologies and associated active cluster formation such as the ρ Oph and Cha I clouds. Surveys for C18O dense cores have shown that internal turbulence dominates the core dynamics and regulates star formation activity (Tachihara et al. 2002).

Keywords

stars: formationISM: cloudsISM: evolutionISM: moleculesISM: structureradio lines: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 478
Copyright
Copyright © International Astronomical Union 2007

References

Onishi, T., Mizuno, A., Kawamura, A., Tachihara, K., & Fukui, Y. 2002, ApJ 575, 950CrossRefGoogle Scholar
Tachihara, K., Onishi, T., Mizuno, A., & Fukui, Y. 2002, A&A 385, 909Google Scholar
Umemoto, T., Kamazaki, T., et al. 2002, in: Ikeuchi, S., Hearnshaw, J. & Hanawa, T. (eds), 8th IAU Asia-Pacific regional meeting (Ast.Soc.Japan), Vol. II, p.229Google Scholar