DV UMa
As detected by J. Pietz on April 9, the eclipsing SU UMa-type dwarf nova
DV UMa experienced a superoutburst (vsnet-campaign-dn
2280). M. Uemura reported that eclipses on April 9 had two components,
one was presumably of a disk and the other was probably of a white dwarf
or a very bright region in an inner accretion disk (vsnet-campaign-dn
2297, 2299,
2302).
The Kyoto team performed time-series photometry and reported that superhumps
decreased in amplitude with time. The profile of eclipses was asymmetric,
indicating an eccentric disk during the early plateau phase of the superoutburst
(vsnet-campaign-dn
2316). A. Oksanen also performed time-series observations and reported
asymmetric eclipses which had a steep ingress and slower egress (vsnet-campaign-dn
2330). A. Oksanen reported that the object was 15.50mag on April 22
and the light curve became rather flatter (vsnet-campaign-dn
2333).
Other articles:
vsnet-campaign-dn
2282, 2288,
2292,
2281,
2312,
2323,
2324,
2337
Links:
Light curves provided by J. Pietz:
8/9 April rising part
http://home.t-online.de/home/Jochen.Pietz/dvuma1.gif
9/10 April first indications of humps
http://home.t-online.de/home/Jochen.Pietz/dvuma2.gif
10/11 April overlapping humps and eclipses
http://home.t-online.de/home/Jochen.Pietz/dvuma3.gif
11/12 April separated humps and eclipses
http://home.t-online.de/home/Jochen.Pietz/dvuma4.gif
[vsnet-campaign-dn
2298]