[vsnet-alert 23399] ASASSN-19rg: temporary fading between double superoutburst?

Kojiguchi Naoto kojiguchi at kusastro.kyoto-u.ac.jp
Fri Jul 19 01:24:28 JST 2019


ASASSN-19rg: temporarily fading between double superoutburst?

     Josch Hambsch reported the observations from July 9 to 15. This object was
fading rapidly on July 13. There is a possibility of a WZ Sge-type dwarf nova (cf.
vsnet-alert 23366). Therefore this fading may be a temporary quiescent state
between double superoutburst (type-E rebrightening).

     According to my PDM analysis from July 9 to 11, there may be a weak signal of
0.076d (or 0.038d). If this signal means the early superhump, the object would be
a period bouncer. Further observations are strongly encouraged to detect the
following ``2nd superoutburst'' which might emerge within a few days (or a
month).



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