Formation of primordial black holes in a 'stiff' universe

Details Formation of primordial black holes in a 'stiff' universe Formation of primordial black holes in a 'stiff' universe

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pazh....6...14z&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 6, Jan. 1980, p. 14-19.) Soviet Astronomy Letters, vol. 6, Jan.-Feb. 1980, p. 7-10. Tra

Astronomy and Astrophysics

Astronomy

2

Black Holes (Astronomy), Cosmology, Universe, Entropy, Evolution (Development)

Scientific paper

In the context of a stiff universe, the formation of primordial black holes from adiabatic perturbations is discussed with allowance for their reverse influence on the expansion dynamics. In a self-consistent treatment, high-frequency perturbations will effectively renormalize the equation of state, diminishing the Jeans length and precluding the development of a catastrophic accretion regime. When dissipation of fine-scale irregularities is taken into account, the results qualitatively remain the same, but one can relate the minimum mass of a black hole newly formed in a stiff universe to the value of the specific entropy.

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