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Exact cosmological solutions for MOG

Name: Exact cosmological solutions for MOG
Creator: Roshan, Mahmood
Keywords: Physics and Astronomy (miscellaneous), Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Engineering (miscellaneous), Astrophysics - Astrophysics of Galaxies, 01 natural sciences, General Relativity and Quantum Cosmology

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Sep 2015Embargo end date: 01 Jan 2015 English Publisher:Springer Science and Business Media LLCJournal:The European Physical Journal C, volume 75 (issn: 1434-6044, eissn: 1434-6052,

Authors: Roshan, Mahmood;

doi: 10.1140/epjc/s10052-015-3637-9 , 10.48550/arxiv.1508.04243

arXiv: http://arxiv.org/abs/1508.04243

Exact cosmological solutions for MOG

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Abstract

We find some new exact cosmological solutions for the covariant scalar-tensor-vector gravity theory, the so-called MOdified Gravity (MOG). The exact solution of the vacuum field equations has been derived. Also, for non vacuum cases we have found some exact solutions with the aid of the Noether symmetry approach. More specifically, the symmetry vector and also the Noether conserved quantity associated to the point-like Lagrangian of the theory have been found. Also we find the exact form of the generic vector field potential of this theory by considering the behavior of the relevant point-like Lagrangian under the infinitesimal generator of the Noether symmetry. Finally, we discuss the cosmological implications of the solutions.

8 pages, to appear in European Physical Journal C

Related Organizations

Ferdowsi University of Mashhad
Iran (Islamic Republic of)

Keywords

Physics and Astronomy (miscellaneous), Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Engineering (miscellaneous), Astrophysics - Astrophysics of Galaxies, General Relativity and Quantum Cosmology

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	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%