Friday, July 26, 2013

1307.6855 (A. Lazareva et al.)

New Cataclysmic Variable 1RXS J015017.0+375614 in Andromeda    [PDF]

A. Lazareva, N. Voroshilov, D. Denisenko, A. Kuznetsov, E. Gorbovskoy, V. Lipunov
We report the discovery of a new cataclysmic variable in MASTER database which is identical to the faint ROSAT X-ray source 1RXS J015017.0+375614. The object was observed in outbursts to 14.9m on 2012 Nov. 28 and to 14.3m on 2013 Jan. 07, but not detected in course of the routine real-time search. Analysis of the archival MASTER data and CRTS light curve shows the large-amplitude variability from 19.1m at quiescence to 15.4-14.8m in outbursts. The new variable is most likely a dwarf nova of SU UMa subtype with rather frequent normal outbursts and occasional superoutbursts.
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