The X-ray Pulse Profile of BG CMi
arXiv:0705.3165 · doi:10.1016/j.newast.2007.05.002
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.
To appear in New Astronomy
References in corpus (5)
- Zeeman tomography of magnetic white dwarfs IV. The complex field structure of the polars EF Eri, BL Hyi, and CP Tuc
- X-ray Orbital Modulations in Intermediate Polars
- Orbital and spin variability of the Intermediate Polar BG CMi
- On the Rapid Spin-down and Low Luminosity Pulsed Emission from AE Aquarii
- The Anisotropic Transfer of Resonance Photons in Hot Plasmas on Magnetized White Dwarfs