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X-ray spectral properties of non-magnetic cataclysmic variables using Chandra HETG
Authors:VR Rana  KP Singh  EM Schlegel  PE Barrett
Institution:

aTata Institute of Fundamental Research, Mumbai, India

bUniversity of Texas, San Antonio, TX 78249, USA

cJohns Hopkins University, Baltimore, MD 21218, USA

Abstract:Results from a study of high resolution spectra obtained with the Chandra X-ray observatory for a sample of 6 Cataclysmic Variables (CVs) are presented. A global fit approach has been employed to obtain the spectral characteristics of the sources. The line-rich high-resolution spectra of these sources clearly indicate multi-temperature nature of the emitting plasma. Multi-temperature APEC models describe the spectra very well. Detection of significantly broad emission lines, indicates the presence of high velocity gas in SS Cyg and U Gem during the optical outbursts.
Keywords:Cataclysmic variables  Binaries  Close–novae  X-rays  Stars
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