2014/06/27 by Arindam Ghosh, Ghosh, Arindam, Sandip K. Chakrabarti +1 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysical Phenomena and Observations #Crystallography and Radiation Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #High-pressure geophysics and materials #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1406.7149
3 Figures, 1 Table, 14 Pages
openalex publication_date 2014/06/27 · openalex created_date 2016/08/23 · arxiv created 2019/04/05 · arxiv updated 2019/04/09 · openalex updated_date 2026/07/28
Stellar companion of a black hole orbiting in an eccentric orbit will experience modulating tidal force with a periodicity same as that of the orbital period. This, in turn, would modulate accretion rates, and the seed photon flux which are inverse Comptonized to produce harder X-rays. By analyzing complete all sky monitor (ASM) data (1.5-12 keV) of RXTE and all sky survey data (15-50 keV) of Swift/BAT we discover this periodicity in several objects. We also estimate eccentricities from the RMS power of the peak around quasi-orbital periods (QOP). Our method provides an independent way to obtain time periods and eccentricities of such compact binaries.