Hostname: page-component-745bb68f8f-grxwn Total loading time: 0 Render date: 2025-01-15T08:46:34.511Z Has data issue: false hasContentIssue false
  • English
  • Français

Primordial Molecular Hydrogen Production and the Formation of Population III Objects

Published online by Cambridge University Press:  07 August 2017

J.C.N. de Araujo  and
R. Opher
J.C.N. de Araujo
Affiliation:
Instituto Astron⊚mico e Geofísico - U.S.P. C.P. 9638, 01065 São Paulo, S.P. - Brasil
R. Opher
Affiliation:
Instituto Astron⊚mico e Geofísico - U.S.P. C.P. 9638, 01065 São Paulo, S.P. - Brasil

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.

We study the formation of Population III objects (and stars) taking into account the expansion of the Universe and a series of physical processes relevant to the primordial plasma. In particular, a very important way to cool the first condensations in the Universe is with molecular hydrogen. The minimum mass of the Population III objects formed is ~ 104M⊙. We show also that stars of mass ≳ 50M⊙ can be formed from the fragmentation of Population III objects of mass ~ 106M⊙.

Type
Early Universe
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 83 - 84
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

Browne, J. C. & Dalgarno, A. 1969, J. Phys. B, 2, 885 Google Scholar
de Araujo, J. C. N. & Opher, R. 1988, MNRAS, 231, 923 CrossRefGoogle Scholar
de Araujo, J. C. N. & Opher, R. 1989, MNRAS, 239, 271 Google Scholar
de Araujo, J. C. N. & Opher, R. 1991, ApJ (in press) Google Scholar
Giusti-Suzor, A., Bardsley, J. N. & Derkits, C. 1983, Phys. Rev. A, 28, 682 CrossRefGoogle Scholar
Hirasawa, T. 1969, Prog. theor. Phys., 42, 523 Google Scholar
Hogan, C. 1978, MNRAS, 185, 889 Google Scholar
Karpas, Z., Anicich, V. & Huntress, W. T., 1979, J. Chem. Phys., 70, 2877 Google Scholar
Lahav, O. 1986, MNRAS, 220, 259 CrossRefGoogle Scholar
Lepp, S. & Shull, J. M., 1983, Ap. J., 270, 578 Google Scholar
Matsuda, T., Sato, H. & Takeda, H., 1969, Prog. theo. Phys., 42, 219 Google Scholar
Peterson, J. R., Abertz, W. H., Moseley, J. T. & Sheridan, J. R., 1971, Phys. Rev. A, 3, 1651 Google Scholar
Ramaker, D. & Peek, J. 1976, Phys. Rev. A, 13, 58 Google Scholar