SDSSp J173008.38+624754.7: Very Short Supercycle
As reported by M. Simonsen on February 18, the SU UMa-type dwarf nova SDSSp
J173008.38+624754.7 experienced a bright (13.6mag) outburst (vsnet-campaign-dn
2131). The Kyoto team performed time-series photometry on February
20 (vsnet-campaign-dn
2138), and detected superhumps with amplitude of 0.3mag (vsnet-campaign-dn
2140). This outburst was thus a superoutburst, and the supercycle
of the object is around 100 d, which is one of the shortest supercycles
in usual SU UMa-type dwarf novae (vsnet-campaign-dn
2131). The Kyoto team reported that the object faded at a rate of ~0.3
mag/day on February 20-22. The combined light curve showed a period of
0.073557(44) d (vsnet-campaign-dn
2143).
Another superoutburst (13.9mag) was reported by M. Simonsen on September
10 (vsnet-campaign-dn
2821). The outburst was confirmed by A. Oksanen at about 13.7mag (vsnet-campaign-dn
2828, 2829,
2873).
An outburst (14.7mag) was reported by T. Kinnunen on December 23. A fading
to 15.3: mag was reported on December 24. It may be a normal outburst (vsnet-campaign-dn
3191).
Other articles:
vsnet-campaign-dn
2134, 2832,
2842,
2852
Links:
Chart with CCD(V) sequences:
http://joevp.20m.com/charts/sloan/charts/
[vsnet-campaign-dn
2132]
CCD image during the October 2001 outburst by A. Oksanen:
http://www.jklsirius.fi/obs/sdss1730map.jpg
[vsnet-campaign-dn
2133]
Light curve observed by A. Oksanen:
http://nyrola.jklsirius.fi/ccd/2002/data0911/SDSS173020020911.jpg
[vsnet-campaign-dn
2846]