Relativistic periastron shift and orbital period in a star-black-hole binary system

Details Relativistic periastron shift and orbital period in a star-black-hole binary system Relativistic periastron shift and orbital period in a star-black-hole binary system

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997phrvd..55.1783e&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 55, Issue 4, 15 February 1997, pp.1783-1787

Astronomy and Astrophysics

Astronomy

Black Holes, Astrometric And Interferometric Binaries

Scientific paper

Using a general relativistic framework we have obtained closed form solutions useful to calculate the relativistic periastron shift and orbital period in star-black-hole binary systems. These analytical solutions valid in weak and strong gravitational fields do not neglect possible relativistic rotational effects due to spin-orbit interactions. Our numerical results suggest that the spin-orbit interaction diminishes (increases) the value of the periastron shift as well as the orbital period when the star orbits in the same (opposite) direction as the rotating black hole.

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