Electronic Resource
Springer
Astrophysics and space science
48 (1977), S. 145-158
ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00643046
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