DM Dra : A new SU UMa-type dwarf nova
On November 14, T. Kinnunen detected an outburst of DM Dra at 14.6mag
(vsnet-campaign 1227).
Followig this, T. Vanmunster started time-series CCD observations and
discovered clear superhumps with an amplitude of 0.36 mag, which
revealed the SU UMa-type nature of DM Dra.
(vsnet-campaign-dn 1890).
He first reported the superhump period of 0.0734 +/- 0.0030 d
(vsnet-campaign-dn 1891).
The Kyoto team observations on November 14 and 19 yielded the superhump
period of 0.07572(4) d
(vsnet-campaign-dn 1925).
T. Kato reported that the observations in 2000 October during a
possible superoutburst showed the amplitude of superhumps were less than
0.1mag. This suggests that the amplitude of superhumps can quickly
decay in this system
(vsnet-campaign 1228).
Superhumps became less apparent on Nov. 21-22, which is in agreement
with this notification
(vsnet-campaign-dn 1948).
The superoutburs continued until November 23 when the Kyoto team
detected the fading from the outburst
(vsnet-campaign 1939).
Superhump light curve obtained at Kyoto.
Other related articles:
vsnet-campaign-dn 1910,
1894,
1898,
1901,
1906,
1919,
1922,
1928,
1932,
1948,
Links:
Light curves presented by T. Vanmunster:
http://www.lunarpages.com/cbabelgium