P-V Criticality Of Topological Black Holes In Lovelock-Born-Infeld Gravity, Phase Transitions, Geometrothermodynamics And Critical Exponents Of Black Holes, Strong Gravitational Lensing In A Brane-World Black Hole, Strong Coupling In Hořava Gravity...

Abstract

Monitoring the orbits of stars around (e&eb) Sgr A* offers(eb)the possibility of detecting (e&eb) the precession of (e) their orbital planes due to (e) frame dragging, of (e) measuring the spin and quadrupole moment of (e) the black hole, and of (e)testing the no-hair theorem. Here authors investigate whether the deviations of stellar orbits from (e) test-particle trajectories due to (e) wind mass loss and (e&eb) tidal dissipation of (e) the orbital energy compromise such measurements. Authors find that the effects of stellar winds are (=), in general, negligible. On the other hand, for the most eccentric orbits (e>0.96) for which an optical interferometer, such as GRAVITY, will detect orbital plane precession due to (e) frame dragging, the tidal dissipation of orbital energy occurs at (eb) timescales comparable to....

The full paper: http://www.iiste.org/PDFshare/APTA-PAGENO-487785-493061.pdf