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arXiv · 1010.0188

1RXS J180834.7+101041 is a new cataclysmic variable with non-uniform disc

D. G. Yakin·V. F. Suleimanov·V. V. Shimansky·N. V. Borisov·I. F. Bikmaev·N. A. Sakhibullin
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Abstract

Results of photometric and spectroscopic investigations of the recently discovered disc cataclysmic variable star 1RXS J180834.7+101041 are presented. Emission spectra of the system show broad double peaked hydrogen and helium emission lines. Doppler maps for the hydrogen lines demonstrate strongly non-uniform emissivity distribution in the disc, similar to that found in IP Peg. It means that the system is a new cataclysmic variable with a spiral density wave in the disc. Masses of the components (M_WD = 0.8 +/- 0.22 M_sun and M_RD = 0.14 +/- 0.02 M_sun), and the orbit inclination (i = 78 +/- 1.5 deg) were estimated using the various well-known relations for cataclysmic variables.

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D. G. Yakin, V. F. Suleimanov, V. V. Shimansky, N. V. Borisov, I. F. Bikmaev, N. A. Sakhibullin. 2010-10-01. 1RXS J180834.7+101041 is a new cataclysmic variable with non-uniform disc. https://doi.org/10.1063/1.3527838

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