Are Galaxies Cosmon Lumps?

Details Are Galaxies Cosmon Lumps? Are Galaxies Cosmon Lumps?

2001-08-27

arxiv.org/abs/astro-ph/0108411v2

Phys.Lett.B522:5-9,2001

Astronomy and Astrophysics

Astrophysics

new references,9 pages,LaTex

Scientific paper

10.1016/S0370-2693(01)01259-X

The scalar ``cosmon'' field mediating quintessence influences the dynamics of extended objects in the universe. We discuss cosmon lumps -- spherically symmetric solutions for the scalar field coupled to gravity. The two integration constants can be associated to the mass and the rotational velocity in a halo-like region with constant rotation curve. The presence of the scalar field also changes the singularity of the black hole solution. We ask if galaxies could be associated with cosmon lumps.

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