V2051 Oph: Very Long, but Relatively Faint, Active State
An outburst (14.5mag) of the eclipsing SU UMa-type dwarf nova, V2051 Oph,
was reported on April 14 by R. Stubbings (vsnet-campaign-dn
2305). A subsequent bright superoutburst (12.2mag on April 18) was reported
by P. Nelson and R. Stubbings. The last likely superoutburst was observed
in 2000 November (vsnet-campaign-dn
2317, 2319,
vsnet-campaign-v2051oph
1). The object faded from the superoutburst on April 25 as reported by
R. Stubbings (vsnet-campaign-v2051oph
3, 4).
The object again showed an outburst (14.3mag) on May 4. The magnitude
indicated that it was a normal outburst, however, from this brightening, an
atypically long, but relatively faint (~15mag), active state started (vsnet-campaign-v2051oph
6, 7,
11).
The Kyoto team performed CCD time-series photometry on May 12 and confirmed
that it was still in outburst. The obtained light curve showed double
humps, which resemble a combination of superhumps and late superhumps (vsnet-campaign-v2051oph
13). Some temporary brightenings were reported by R. Stubbings during
this long bright state; 14.5mag on May 23 (vsnet-campaign-v2051oph
19), 14.6mag on June 7 (vsnet-campaign-v2051oph
21), 14.0mag on July 12 (vsnet-campaign-dn
2635, vsnet-campaign-v2051oph
24), and 14.2mag on August 6 (vsnet-campaign-v2051oph
25).
Other articles:
vsnet-campaign-v2051oph
2, 5,
8,
9,
10,
12,
13,
14,
15,
16,
17,
18,
20,
22,
23,
24,
vsnet-campaign-dn
2318, 2319,
2635