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Digitale Medien

Pregalactic nucleosynthesis (1977)

Hartquist, T. W. ; Cameron, A. G. W.

Springer

Astrophysics and space science 48 (1977), S. 145-158

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Details

ISSN: 1572-946X

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract We discuss the behavior of density fluctuations in an expanding universe and show that these should lead to the early formation of pregalactic hydrogen-helium stars of several hundred to several thousand solar masses. These stars flood the universe with radiation having a color temperature ≳105 K; this terminates star formation but permits galaxy formation to continue. About 10−2 of the mass of the galaxies is converted into heavy elements by pregalactic nucleosynthesis, with an error factor of a few.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00643046

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