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Titolo
Testing f (R) theories using the first time derivative of the orbital period of the binary pulsars.
Autor(es)
Soggetto
gravitation
General Relativity and Quantum Cosmology
Clasificación UNESCO
22 Física
Fecha de publicación
2013
Editore
Oxford University Press [Commercial Publisher]
Royal Astronomical Society [Society Publisher)
Resumen
[EN]In this paper, we use one of the post-Keplerian parameters to obtain constraints on f (R) theories
of gravity. Using the Minkowskian limit, we compute the prediction of f(R) theories on the
first time derivative of the orbital period of a sample of binary stars, and we use our theoretical
results to perform a comparison with the observed one. Selecting a sample of relativistic binary
systems, we estimate the parameters of analytic f(R) gravity. We find that the theory is not
ruled out if we consider only the double-neutron star systems, and in this case we can cover
the existing gap between the general relativity prediction and the observed data
URI
ISSN
0035-8711
Versión del editor
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