[vsnet-outburst 25445] M31V1113 = RX J0044.3+4134 = AT 2020plo: not likely early superhumps

[Taichi Kato]

M31V1113 = RX J0044.3+4134 = AT 2020plo: not likely early superhumps

> A period analysis using the ANOVA, Lomb-Scargle, 
> Generalized-Lomb-Scargle and PDM methods (Peranso 3.0, 
> under development), yields a combined superhump period of 
> 0.0705 +/- 0.0028d, but given the short baseline this value 
> obviously needs to be refined over the next nigths.

   My analysis (not including the Jul 27/28 data) yielded
a period of 0.06729(6) d (aliases 0.07210 and 0.06729).
Singly peaked and not likely early superhumps.
The amplitude was very small (0.028 mag).
The amplitude of early superhumps is usually largest
around the peak brightness and does not emerge later.

   The mean fading rate (0.059 mag/d) is also too small
for the early superhump stage.