[vsnet-alert 12360] GX Cas: positive period derivative?

[Taichi Kato]

GX Cas: positive period derivative?

   We have received new observations from Okayama U. of Sci. team.
A quick analysis suggests that the superhump period may have lengthened
(unusual for such a long Psh).
The measured Pdot is somewhere around +15*10^(-5).  Mean Psh = 0.09293(4) d.
Confirmatory observations are still needed!