[vsnet-alert 12267] Re: [vsnet-alert] EI Psc on Oct. 10

[Roger Pickard]

I too have observed this star on both Oct 10 and 12.  The run on the 
10th was the longer and showed both the longer period reported here 
and a potentially shorter one superimposed on it.

The run on the 12 was much shorter and only showed the shorter period.

Roger Pickard, UK


----- Original Message ----- 
From: "Taichi Kato" <tkato at kusastro.kyoto-u.ac.jp>
To: <suuma at yahoogroups.com>; <variable_star_forum at yahoogroups.com>; 
<vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>; 
<vsnet-alert at yahoogroups.com>; 
<vsnet-campaign-dn at ooruri.kusastro.kyoto-u.ac.jp>; 
<vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp>; 
<vsnet-outburst at yahoogroups.com>
Sent: Wednesday, October 13, 2010 1:29 AM
Subject: [vsnet-alert] EI Psc on Oct. 10


> EI Psc on Oct. 10
>
>   Akazawa-san (Okayama U. of Sci. team) has reported time-series 
> observations
> of EI Psc on Oct. 10.  There were well-defined waves.  An analysis 
> has yielded
> a period of 0.0441(1) d, confirming that this period arises from 
> orbital
> variations rather than superhumps.  The full amplitudes of 
> variations
> were 0.2 mag, but the profile is more singly-peaked rather than the 
> typical
> one (ellipsoidal modulations) in quiescence.  There may have been 
> significant
> contribution from the disk (even superhumps?).
>
>
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