paper

Two X-Ray Bright Cataclysmic Variables with Unusual Activities: GZ Cnc and NSV 10934

arXiv:astro-ph/0210015 · doi:10.1051/0004-6361:20021435

Abstract

We report on a discovery of unexpected activities in two X-ray bright dwarf novae. GZ Cnc showed an anomalous clustering of outbursts in 2002, in contrast to a low outburst frequency in the past record. The activity resembles an increased activity seen in some intermediate polars or candidates. We identified NSV 10934, X-ray selected high-amplitude variable star, as a dwarf nova with unusually rapid decline. The outburst characteristics make NSV 10934 a twin of recently discovered intermediate polar (HT Cam) with dwarf nova-type outbursts. We propose that these activities in X-ray strong dwarf novae may be a previously overlooked manifestation of outburst activities in magnetic cataclysmic variables.

arXiv comment4 pages, 5 figures, accepted for publication in Astron. Astrophys

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