Astronomy and Astrophysics – Astronomy
Scientific paper
May 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977afz....13..375p&link_type=abstract
Astrofizika, vol. 13, May 1977, p. 375-384. In Russian.
Astronomy and Astrophysics
Astronomy
1
Astronomical Models, Big Bang Cosmology, Black Holes (Astronomy), Anisotropy, Gravitational Collapse, Mass Distribution
Scientific paper
A particular continuous solution describing the process of primordial black-hole formation in a Friedmann universe and the subsequent accretion of dust onto a primordial black hole is obtained in the framework of the general quasi-isotropic Tolman solution. Criteria for black-hole formation are analyzed, the time required for the initiation of gravitational collapse is evaluated, and the dependence of black-hole mass on time is examined. It is shown that the rate of accretion depends on the form of a function corresponding to the total energy of an element of matter.
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