Triggers:CVs

From Gaia Science Alerts Working Group
Revision as of 09:58, 6 October 2009 by Lukasz (talk | contribs) (Created page with 'There is a very large variety of behaviours of CVs. == VY Sculptoris == A subclass of cataclysmic variables exhibiting occasional drops by several magnitudes at irregular interv...')
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

There is a very large variety of behaviours of CVs.

VY Sculptoris

A subclass of cataclysmic variables exhibiting occasional drops by several magnitudes at irregular intervals. The prototype of the class had shown a deep low-state in 2008, first since 1983 (Greiner et al. 2009).

  • amplitude: several magnitudes
  • drop time scale: 10-30 days
  • low state lasts for about 100 days
  • some periodicity (P about 10 days) is present
  • mechanism not well understood
  • some of VY Scl stars are supersoft X-ray sources during optical low-states.

[Figure: CV-VYScl.png]