[vsnet-outburst 11666] SDSS J080434.20+510349.2: fading stage of the fourth rebrightening

[Taichi Kato]

SDSS J080434.20+510349.2: fading stage of the fourth rebrightening

   Josch Hambsch (Astrokolkhoz team with T. Krajci), Enrique de Miguel
and Okayama U. of Sci. team have reported further observations.
The data were taken during the fading branch of the fourth rebrightening.
The hump maxima further showed an advance in phase, and the amplitudes
are getting larger as in the previous cases.  The full amplitudes reached
0.3 mag in the most recent observations.
The eclipses became broader and slightly deeper (up to 0.1 mag).

   There has also been an indication of a stable periodicity during the
rebrightening phase (post-superoutburst stage).  The additional hump
maxima since Oct. 7 have been reproduced by a stable period of
0.05965(1) d, 1.1% longer than the orbital period.  This periodicity
may reflect the period (often longer than the superhump period during
the plateau phase) of late-stage superhumps in WZ Sge-type stars.
During the 2006 superoutburst, a period of 0.059632(6) d was detected
during the corresponding epoch (cf.
http://adsabs.harvard.edu/abs/2009PASJ...61..601K ).