Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology

Details Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology

2003-07-10

arxiv.org/abs/astro-ph/0307214v4

JCAP0411:008,2004

Astronomy and Astrophysics

Astrophysics

11 pages, 3 figures, substantial revision, title changed, content changed, added references, to appear in JCAP

Scientific paper

10.1088/1475-7516/2004/11/008

The hypothesis that dark matter and dark energy are unified through the
Chaplygin gas is reexamined. Using generalizations of the spherical model which
incorporate effects of the acoustic horizon we show that an initially
perturbative Chaplygin gas evolves into a mixed system containing cold dark
matter-like gravitational condensate.

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