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

TL;DR

This paper reports the discovery and analysis of a new cataclysmic variable star in Andromeda, identified through archival data and observed outbursts, likely classified as an SU UMa subtype dwarf nova.

Contribution

The study identifies a new cataclysmic variable in Andromeda and characterizes its outburst behavior and probable subtype, expanding knowledge of such systems.

Findings

Detected large-amplitude variability from 19.1m to 14.3m-15.4m.

Observed outbursts on specific dates, confirming active accretion events.

Classified as a likely SU UMa subtype dwarf nova.

Abstract

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.