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- Ryu, Dongsu
- Astrophysics Lab.
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The X-ray pulse profile of BG CMi
- Author(s)
- Choi, Chul-Sung, Dotani, Tadayasu, Kim, Yonggi, Ryu, Dongsu
- Issued Date
- 2007-11
- Citation
- NEW ASTRONOMY, v.12, no.8, pp.622 - 629
- Abstract
- We present an analysis of the X-ray data of a magnetic cataclysmic variable, BG CMi, obtained with ROSAT in March 1992 and wi 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 profi The fluxes of two major pulses are similar to 2-5 times larger than those of two minor pulses. The fraction of the total pulsed flux increases frc 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 our findings for tile origin of the pulse profile and its energy dependence. (c) 2007 Elsevier B.V. All rights reserved
- Publisher
- ELSEVIER SCIENCE BV
- ISSN
- 1384-1076
- Keyword (Author)
- cataclysmic variables, close binaries, individual stars (BG CMi), X-ray binaries
- Keyword
- CANIS-MINORIS, WHITE-DWARFS, EMISSION, ASCA
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