[vsnet-alert 9558] HS2331+3905 early superhumps, period update

[Taichi Kato]

   HS2331+3905 early superhumps, period update

   Although more detailed analysis will be announced by Maehara-san,
I had a quick look at the data reported up to now (compiled by
Maehara-san; observer names will be announced later).  The best
period of early superhumps is 0.056278(3) d, which is slightly
shorter than the previous estimate.  The period agrees with
the orbital period within an error of 0.1%.  Since the period of
early superhumps in WZ Sge has been shown to differ from the
orbital period at this level, accurate determination of both
orbital and early-superhump periods are still strongly wanted
to verify this possibility.

cf. Ishioka et al.
http://adsabs.harvard.edu/abs/2002A%26A...381L..41I

Please report your time-series photometry of HS2331+3905 to:
vsnet-campaign-report at ooruri.kusastro.kyoto-u.ac.jp