Neutron stars in the bimetric scalar-tensor theory of gravitation. I. New solutions of the field equations.

Details Neutron stars in the bimetric scalar-tensor theory of gravitation. I. New solutions of the field equations. Neutron stars in the bimetric scalar-tensor theory of gravitation. I. New solutions of the field equations.

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ap.....40..252g&link_type=abstract

Astrophysics, Volume 40, Issue 3, pp.252-259

Astronomy and Astrophysics

Astrophysics

Scalar-Tensor Theory: Gravitation Theory, Scalar-Tensor Theory: Neutron Stars

Scientific paper

New solutions of the equations of the bimetric scalar-tensor theory of gravitation for neutron stars are found. In these solutions the scalar field is constant, φ = φφ, while the metric space-time tensor is determined by the equations of the general theory of relativity. The problem was to find a background metric corresponding to φφ. Solutions with a variable φ were studied earlier [M. R. Avakian, L. Sh. Grigorian, and A. A. Saharian, Astrofizika, 35, 121 (1991)] and are determined by the dimensionless parameter ζ of the theory. Differences between solutions with constant and variable ϕ are considerable for ¦ζ¦ ≤ 1.

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