The by-product of long term monitoring of intermediate polars is the discovery of low states similar to the low states in classical polars. Up to now we know that such phenomenon was observed in V1323 Her, FO Aqr, DO Dra.
Category Archives: Outputs
Flares on red dwarfs
By-product of the Project dwarf are the observation of flares on red dwarf in binary systems. The project dwarf is aimed at detection of circumbinary extrasolar planets using the timing of the minima of low-mass eclipsing binaries. There are many red dwarf stars among the observed objects. Thus time to time some flare was detected. …
Visual observations
Light curves of several semiregular and symbiotic variables from my program. Visual estimates together with data from ASAS-SN survey and CCD observations from AAVSO database. Some time visual data are useful (WY And), sometime the advantage of one visual observer is visible (CH Cyg), sometime visual data fill the gap in the survey data (TZ …
V723 Cas
Nova Cas 1995 probably finished its long supersoft X-ray source phase. This SSS phase was accompanied with periodic (0.6932672d) brightness variation interpreted as orbital wave. The amplitude of these variations increased until 2005. It reached 2.0 mag in the B band. Then it was decreasing slowly. The abrupt change came in 2015. Goranskij et al. …
Eclipsing polar V808 Aur
Previously known as CRTS J071126.0+440405 discovered in January 2009 by Catalina Sky Survey as relatively bright polar with deep eclipses. In the active state there is a pre-eclipse dip at phase -0.13 interpreted as eclipse caused by accretion stream falling toward white dwarf. The deep eclipse is the occultation of the hot spot by the …