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Chaplygin gas halos

2017/12/06 by T. de Beer, de Beer, T., J. W. van Holten +1
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #astro-ph.CO #gr-qc

paper · pdf · doi:10.48550/arxiv.1712.02129

18 pages, 9 figures; vs: references added

arxiv created 2017/12/18 · arxiv updated 2017/12/20

Abstract

Unification of dark matter and dark energy as short- and long-range manifestations of a single cosmological substance is possible in models described by the generalized Chaplygin gas equation of state. We show it admits halo-like structures and discuss their density profiles, the resulting space-time geometry and the rotational velocity profiles expected in these models.

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