Periodic X-ray Modulation and its relation with orbital elements in Compact Binaries
High Energy Astrophysical Phenomena
2019-04-09 v3
Abstract
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.
Keywords
Cite
@article{arxiv.1406.7149,
title = {Periodic X-ray Modulation and its relation with orbital elements in Compact Binaries},
author = {Arindam Ghosh and Sandip K. Chakrabarti},
journal= {arXiv preprint arXiv:1406.7149},
year = {2019}
}
Comments
3 Figures, 1 Table, 14 Pages