[vsnet-campaign-dn 5843] TT Ind outburst -- attention please
Taichi Kato
tkato at kusastro.kyoto-u.ac.jp
Sat Aug 30 10:56:36 JST 2008
TT Ind in outburst -- needs more attention
YYYYMMDD(UT) mag observer
20080829.1149 <14.50V (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
20080829.487 145 (Rod Stubbings)
===
This object may be an SU UMa-type dwarf nova. During the 2007 July
long outburst, ASAS-3 recorded a fading rate compatible with
an SU UMa-type superoutburst. Although the present outburst is much
fainter, it might evolve into a superoutburst assuming a supercycle
of a year or so. Time-resolved photometry would be encouraged.
Past information:
[vsnet-campaign 388]
Relatively rare outburst. The last outburst occurred in 2000 March.
The 1999 December outburst looks like a superoutburst; time-resolved
photometry during long, bright outburst is encouraged. Possible VSNET
campaign target star.
[vsnet-campaign 391]
Further brightening has been observed, reaching the brightest level in
the past. The object is at mag 18 in quiescence, so the present outburst
has a chance of a superoutburst (or a large-amplitude SS Cyg star).
Time-resolved photometry is strongly needed to clarify its nature.
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