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[vsnet-campaign 799] CP Dra: a long period SU UMa stars
CP Dra: a relatively long period SU UMa stars
J. Pietz has kindly sent his results of time-series photometry
to the VSNET collaboration team (Thanks!). The light curve clearly
shows fully-grown superhumps with an amplitude of 0.3mag.
Combined with the Kyoto data taken on February 24 and 25,
they show a periodicity of 0.0856 +/- 0.0003 day which is consistent
with the result reported by T. Vanmunster in [vsnet-campaign 798].
This relatively long superhump period indicates that the orbital
period of CP Dra lies near the lower edge of the period gap of
cataclysmic variables (~2 hr), so this is an important object to study
the CV evolution. Superhump observations during this superoutburst
is very encouraged. The Kyoto team has performed time-series photometry
in the last night (February 26) for over 4 hours under clear sky.
The data is now under reduction, and preliminary results will be
announced later.
Regards,
Makoto Uemura
vsnet-adm@kusastro.kyoto-u.ac.jp
Return to Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
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