KL Dra: Superoutburst in June
In June 2002, M. Wood informed that the helium dwarf nova KL Dra appeared
to be undergoing a superoutburst. The object was observed in outburst
in 2001 July-August. T. Kato reported that the supercycle could be around
300 d or its 1/N (vsnet-campaign-dn
2555). T. Kato reported a confirmation of the outburst by K. Matsumoto
on June 14 (vsnet-campaign-dn
2560). G. Masi and U. Tagliaferri also confirmed and observed the
object, and reported R=16.2 on June 16 (vsnet-campaign-dn
2563). T. Kato reported the detection of superhumps with amplitudes
of 0.1-0.2mag on June 16 (vsnet-campaign-dn
2565, 2572).
G. Masi reported a significant fading (0.05mag during 3+ hours) during
their run on June 16 (vsnet-campaign-dn
2574, 2575).
The fading was confirmed by observations by the Kyoto team (vsnet-campaign-dn
2577). The light curve on June 18 taken by K. Tanabe showed that KL Dra
brightened from the temporary fading on June 16. The observations suggested
that KL Dra entered the plateau phase of a superoutburst. The amplitude
of superhumps was about 0.10mag on June 18 (vsnet-campaign-dn
2579, 2596,
2597,
2606).
The time-series observation by G. Masi (on June 22) and by K. Tanabe (on
June 21 and 22) showed superhumps with the amplitudes of ~0.025mag (vsnet-campaign-dn
2609, 2611).
Link:
Image taken by G. Masi and U. Tagliaferri:
http://www.bellatrixobservatory.org/kldra.jpg
[vsnet-campaign-dn
2564]