[vsnet-alert 5924] AL Com early superhumps, changing profile

[Taichi Kato <tkato>]

AL Com early superhumps, changing profile

   We have received additional data from the Brno team.  A quick look
at the data on Apr. 24-25 shows again singly peaked humps.  The best period
from this night's observation is 0.0560 d, which suggests that these
modulations are early superhumps with changing profiles.  However, this
may be a suggestion of the emergence of usual superhumps, what are observed
in all SU UMa stars (cases are known usual superhumps start with a period
close to the orbital period, cf. T Leo in 1993, PASJ 49, 583).

   Continued observations are very encouraged.  More detailed analysis,
together with other incoming data, will be presented by Ishioka-san et al.
later.

Regards,
Taichi Kato
VSNET Collaboration team

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