[vsnet-campaign-dn 6443] Variations of the superhump period of V368 Peg: Monotonicity or frequency doubling?

[Ivan Andronov]

Variations of the superhump period of V368 Peg: Monotonicity or frequency doubling?

In our old paper we discuss the switches/monotonic trends for this star
http://il-a.pochta.ru/V368_Peg.htm
N.I. Ostrova, N.A. Katysheva, I.L. Andronov
"Astronomical School's Report"), 2001, 2, 77

ABSTRACT.The superhumps have been detected during the superoutburst in 2000, justifying the SU UMa subtype classification. The decrease of the photometric period with luminosity by a factor of 2.3 times has been detected. The models of the smooth character of this dependence vs the "smooth variation + frequency doubling" are discussed. At the brightness maximum, the presence of the "shot noise" is registered.

Maybe a current superoutburst  will be observed enough densely to to fill the gap in the "magnitude - superhump period" diagram, so monitoring is especially needed at the intermediate and lower parts of the ascending branch.

Ivan L.Andronov,
Department of "High and Applied Mathematics"
Odessa National Maritime University