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The X-ray emission of the polar BL Hydri

G. Matt·R. Barcaroli·T. Belloni·K. Beuermann·J. M. Bonnet-Bidaud·D. De Martino·C. Done·B. T. Gaensicke·M. Guainazzi·M. Mouchet·K. Mukai
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Abstract

We report on the analysis of the ASCA and BeppoSAX X-ray observations of the polar system BL Hyi. Emission from both poles is apparent in both observations; the emission from the second pole varies from cycle to cycle, indicating non-stationary accretion there. The temperature of the post-shock region is estimated to be about 10 keV. Inclusion of both complex absorption and Compton reflection significantly improves the quality of the fit. No soft X-ray component is observed; the BeppoSAX/LECS upper limit to the soft component is in agreement with theoretical expectations for this low magnetic field system.

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G. Matt, R. Barcaroli, T. Belloni, K. Beuermann, J. M. Bonnet-Bidaud, D. De Martino, C. Done, B. T. Gaensicke, M. Guainazzi, M. Mouchet, K. Mukai. 1998-03-25. The X-ray emission of the polar BL Hydri. https://arxiv.org/abs/astro-ph/9803291

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