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Dipolar dark matter and dark energy

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 24 Jul 2009Embargo end date: 01 Jan 2009 France Publisher:American Physical Society (APS)Journal:Physical Review D, volume 80 (issn: 1550-7998, eissn: 1550-2368,

Authors: Blanchet, Luc; Le Tiec, Alexandre;

doi: 10.1103/physrevd.80.023524 , 10.48550/arxiv.0901.3114

arXiv: http://arxiv.org/abs/0901.3114

Dipolar dark matter and dark energy

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Abstract

In previous work [L. Blanchet and A. Le Tiec, Phys. Rev. D 78, 024031 (2008)], a model of dark matter and dark energy based on the concept of gravitational polarization was investigated. This model was shown to recover the concordance cosmological scenario (Lambda-CDM) at cosmological scales, and the phenomenology of the modified Newtonian dynamics (MOND) at galactic scales. In this article we prove that the model can be formulated with a simple and physically meaningful matter action in general relativity. We also provide alternative derivations of the main results of the model, and some details on the variation of the action.

11 pages, 2 figures; minor stylistic corrections, added references, added appendix; to appear in Phys. Rev. D

Country

France

Related Organizations

Laboratoire d'informatique de Paris 6
France
Sorbonne Paris Cité
France
Institut National des Sciences de l Univers
France
French National Centre for Scientific Research
France
Sorbonne University
France

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Keywords

Modified theories of gravity, Astrophysics - Cosmology and Extragalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 04.50.Kd, FOS: Physical sciences, 95.36.+x, General Relativity and Quantum Cosmology (gr-qc), General Relativity and Quantum Cosmology, [SDU] Sciences of the Universe [physics], Dark energy, Dark matter, 95.35.+d, Astrophysics - Cosmology and Nongalactic Astrophysics

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