Journal Article

Density perturbations in a gas of wormholes

A. A. Kirillov and E. P. Savelova

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 412, issue 3, pages 1710-1720
Published in print April 2011 | ISSN: 0035-8711
Published online April 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2010.18007.x
Density perturbations in a gas of wormholes

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The observed dark matter phenomenon is attributed to the presence of a gas of wormholes. We show that due to topological polarization effects, the background density of baryons generates non-vanishing values for wormhole rest masses. We infer basic formulae for the scattering cross-section between baryons and wormholes and equations of motion. Such equations are then used for the kinetic and hydrodynamic description of the gas of wormholes. In the Newtonian approximation, we consider the behaviour of density perturbations and show that at very large distances wormholes behave exactly like heavy non-baryonic particles, thus reproducing all features of cold dark matter models. At smaller galactic scales, wormholes strongly interact with baryons and cure the problem of cusps. We also show that collisions of wormholes and baryons lead to some additional damping of the Jeans instability in baryons.

Keywords: galaxies: kinematics and dynamics; dark matter

Journal Article.  7325 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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