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Particles 2018, 1(1), 203-211; https://doi.org/10.3390/particles1010015

Models of Compact Stars in the Bimetric Scalar-Tensor Theory of Gravitation

1
Institute of Applied Problems in Physics NAS RA, 25 Nersessian Street, Yerevan 0014, Armenia
2
Department of Physics, Yerevan State University, 1 Alex Manoogian Street, Yerevan 0025, Armenia
*
Author to whom correspondence should be addressed.
Received: 28 June 2018 / Revised: 7 August 2018 / Accepted: 7 August 2018 / Published: 10 August 2018
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Abstract

We investigate static spherically-symmetric configurations of gravitating masses in the bimetric scalar-tensor theory of gravitation. In the gravitational sector, the theory contains the metric tensor, a scalar field and a background metric as an absolute variable of the theory. The analysis is presented for the simplest version of the theory with a constant coupling function and a zero cosmological function. We show that, depending on the value of the theory parameter, the masses for superdense compact configurations can be essentially larger compared to the configurations in general relativity. View Full-Text
Keywords: gravity; scalar-tensor theories; bimetric theories; superdense stars gravity; scalar-tensor theories; bimetric theories; superdense stars
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Grigorian, L.S.; Khachatryan, H.F.; Saharian, A.A. Models of Compact Stars in the Bimetric Scalar-Tensor Theory of Gravitation. Particles 2018, 1, 203-211.

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