[vsnet-alert 6443] Re: WZ Sge: new hump structure and possible QPOs

[Gianluca Masi <gianmasi@fr.flashnet.it>]

Taichi Kato wrote:
> 
> WZ Sge: new hump structure and possible QPOs
> 
> Dear Colleagues,
> 
>    The analysis of the latest data (J. Pietz and A. Oksanen) has revealed
> the emergence of new (super)humps at phases completely different from
> the previous superhumps (during the second rebrightening).  This phenomenon
> may be some sort of "late superhumps" to newly appeared superhumps during
> the second rebrightening (how complex!).  There seem to be no "true" eclipse
> signals.
> 
>    Furthermore, large-amplitude modulations with time-scales of ~20 min.
> Although they may be substuctures of (super)hump signals, they may represent
> the emergence of new QPOs.  Since some super-QPOs are known to arise from
> these slow modulations (cf. EF Peg in 1991), observers are strongly urged
> to record the evolution of short-term oscillations, as well as evolution
> of (super)humps.
> 

Dear Taichi,
this actually confirms what I reported in vsnet-campaign-dn 1369 (also sent to
vsnet alert, but still not distribuited)! A very nice finding!

Regards,
Gianluca
-- 
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* Gianluca Masi                           "Two things fill the soul   *
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