[vsnet-chat 1206] Re: V592 Her position

[Taichi Kato <tkato>]

Re: [vsnet-chat 1205] Re: V592 Her position

   One thing I forgot to mention.  The spectroscopic confirmation by
Dr. Mennickent, together with the extremely large outburst amplitude,
strongly suggest the system belongs to the WZ Sge-class of dwarf novae.
The orbital (or superhump) period is expected to be around 1.3-1.4 hour;
this predicted shortness of the period will make full-phase observation
easiler than in other SU UMa stars.

   In known WZ Sge-type systems, what is called early superhumps, orbiral
superhumps, or outburst orbital humps (nomenclature depending the authors)
appear, which are characterized by the double-wave (Porb/2) signals.
The outburst amplitude of 9.5 mag (or more) is the far exceeding the
previous records of WZ Sge-type systems (even WZ Sge itself had 8.5 mag).
This is clearly the first-ever opportunity in revealing in such dwarf
novae with tremendously large outburst amplitudes.  Only few known of them
exceed the 9 mag amplitude, and none were observed in terms of short-term
variability.

Regards,
Taichi Kato

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