Black holes and structure in an oscillating universe

Details Black holes and structure in an oscillating universe Black holes and structure in an oscillating universe

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.350...43s&link_type=abstract

Nature (ISSN 0028-0836), vol. 350, March 7, 1991, p. 43-45.

Astronomy and Astrophysics

Astrophysics

4

Astronomical Models, Black Holes (Astronomy), Cosmology, Einstein Equations, Gravitation Theory, Nuclear Astrophysics, Schwarzschild Metric, Space-Time Functions

Scientific paper

If black holes exist in the contracting phase of a closed universe, they will give rise to a pressure and entropy catastrophe. It is suggested that the resulting violent inhomogeneities can lead to a reexpansion in a significant portion of the universe. Global reexpansion, prompted by a merging of black holes, may thus begin in a semiclassical rather than fully quantum gravitational era, at densities greater than those at which nucleosynthesis occurs. Surviving black holes and inhomogeneities could initiate the formation of structures such as galaxies in the 'new' universe. The behavior of such an oscillating universe would differ in detail from cycle to cycle.

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