Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-25T17:08:15.522Z Has data issue: false hasContentIssue false
  • English
  • Français

Star Formation in the Early Universe

Published online by Cambridge University Press:  05 September 2012

Kazuyuki Omukai
Kazuyuki Omukai*
Affiliation:
Department of Physics, Kyoto University, Kyoto, Japan email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In low-metallicity environments, massive stars are more easily formed than in the solar neighborhood. In this article, we see the following examples of low-mass star formation. We first describe the first star formation in the universe and argue that they are typically ordinary-sized massive stars, rather than very massive (> 100M⊙) ones. Next, we see how the metal-enrichment changes the thermal evolution of gas, thereby causing the shift of characteristic stellar mass towards lower mass. Finally, we discuss the possibility of forming supermassive stars in some special conditions in young galaxies.

Keywords

Star FormationPop II StarsPop III Stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S279: Death of Massive Stars: Supernovae and Gamma-Ray Bursts , April 2011 , pp. 216 - 223
Copyright
Copyright © International Astronomical Union 2012

References

Dekel, A. & Birnboim, Y. 2006, MNRAS, 368, 2CrossRefGoogle Scholar
Dijkstra, M., Haiman, Z., Mesinger, A., & Wyithe, J. S. B. 2008, MNRAS, 391, 1961CrossRefGoogle Scholar
Hosokawa, T., Omukai, K., Yoshida, N., & Yorke, H. W. 2011, Science, 334, 1250CrossRefGoogle Scholar
Hosokawa, T., Omukai, K., & Yorke, H. W. 2012, ArXiv:1203.2613Google Scholar
Inayoshi, K. & Omukai, K. 2012, MNRAS, in press (arXiv:1202.5380)Google Scholar
Jappsen, A.-K., Klessen, R. S., Larson, R. B., Li, Y. & Mac Low, M.-M. 2005, A&A, 435, 611Google Scholar
Larson, R. B. 2005, MNRAS, 359, 21CrossRefGoogle Scholar
Li, Y., Klessen, R. S. & Mc Low, M.-M. 2003, ApJ, 592, 975CrossRefGoogle Scholar
Mortlock, D. J. et al. 2011, Nature, 474, 616CrossRefGoogle Scholar
Omukai, K. 2001, ApJ, 546, 635CrossRefGoogle Scholar
Omukai, K., Hosokawa, T., & Yoshida, N. 2010, ApJ, 722, 1793CrossRefGoogle Scholar
Schneider, R., Ferrara, A., Natarajan, P., & Omukai, K. 2002, ApJ 571, 30CrossRefGoogle Scholar
Schneider, R., Omukai, K., Inoue, A. K., & Ferrara, A. 2006, MNRAS, 369, 1437CrossRefGoogle Scholar
Shang, C., Bryan, G. L., & Haiman, Z. 2010, MNRAS, 402, 1249CrossRefGoogle Scholar
Tsuribe, T. & Omukai, K. 2006, ApJ, 642, L61CrossRefGoogle Scholar
Wolfire, M. G. & Cassinelli, J. P. 1987, ApJ, 319, 850CrossRefGoogle Scholar