[vsnet-alert 16721] CRTS OT J105550.1+095621 outburst

Denis Denisenko d.v.denisenko at gmail.com
Thu Dec 19 13:46:17 JST 2013

MASTER-Kislovodsk has also detected a bright outburst of dwarf nova in
Leo CSS 080130:105550+095621 = SDSS J105550.08+095620.4:

CSS 080130:105550+095621 = SDSS J105550.08+095620.4
  20131218.982  14.25C  MASTER-Kislovodsk
  20131218.983  14.15C  MASTER-Kislovodsk
  20131218.984  14.19C  MASTER-Kislovodsk
  20131219.014  14.35C  MASTER-Kislovodsk
  20131219.015  14.24C  MASTER-Kislovodsk
  20131219.016  14.30C  MASTER-Kislovodsk

In the paper by Paula Szkody et al. "Cataclysmic Variables from SDSS.
VIII. The Final Year" the object has deserved a special note about the
spectrum (Figure 2):

> The visibility of a sharp peak component in the lines indicates a prominent hot spot may contribute to the light of this system.

The object has a very interesting light curve in CSS data:

Two bright outbursts were detected in 2005 and 2006 (14.1 and 14.3m,
respectively), then there was one night at 15.3 in 2008, after which
the object was never seen brighter than 16m. The quiescent magnitude
varies from below 18.5 to 17.6.

Denis Denisenko
Member of MASTER team at SAI MSU

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