The X-ray Pulse Profile of BG CMi
Astrophysics
2009-06-23 v1
Abstract
We present an analysis of the X-ray data of a magnetic cataclysmic variable, BG CMi, obtained with ROSAT in March 1992 and with ASCA in April 1996. We show that four peaks clearly exist in the X-ray pulse profile, unlike a single peak found in the optical profile. The fluxes of two major pulses are times larger than those of two minor pulses. The fraction of the total pulsed flux increases from 51% to 85% with increasing energy in 0.1 2.0 keV, whereas it decreases from 96% to 22% in 0.8 10 keV. We discuss the implications of our findings for the origin of the pulse profile and its energy dependence.
Keywords
Cite
@article{arxiv.0705.3165,
title = {The X-ray Pulse Profile of BG CMi},
author = {Chul-Sung Choi and Tadayasu Dotani and Yonggi Kim and Dongsu Ryu},
journal= {arXiv preprint arXiv:0705.3165},
year = {2009}
}
Comments
To appear in New Astronomy