D. G. Yakin, V. F. Suleimanov, N. V. Borisov, V. V. Shimanskii, I. F. Bikmaev
We present the results of our photometric and spectroscopic studies of the
new eclipsing cataclysmic variable star 1RXS J180834.7+101041. Its spectrum
exhibits double-peaked hydrogen and helium emission lines. The Doppler maps
constructed from hydrogen lines show a nonuniform distribution of emission in
the disk similar to that observed in IP Peg. This suggests that the object can
be a cataclysmic variable with tidal density waves in the disk. We have
determined the component masses (M_WD =0.8 \pm 0.22 M_sun and M_RD =0.14 \pm
0.02 M_sun) and the binary inclination (i =78 \pm 1.5 deg) based on well-known
relations between parameters for cataclysmic variable stars. We have modeled
the binary light curves and showed that the model of a disk with two spots is
capable of explaining the main observed features of the light curves.
View original:
http://arxiv.org/abs/1202.3959
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