[vsnet-campaign-dn 2907] IX Dra superoutburst

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

IX Dra superoutburst

Dear Colleagues,

   The Kyoto team (observers: M. Uemura and R. Ishioka) has recorded an
ongoing superoutburst of IX Dra (the analysis has been delayed, as in
Var73 Dra).  The object was caught in rise on October 10.  A superoutburst
plateau has lasted since then.  Superhumps have been detected on all
analyzed runs during the superoutburst pleteau.  The detection of
likely superhumps during the rising branch makes a further confirmation
of early-time appearance of large-amplitude superhumps in ER UMa stars
(Kato et al. (1996) PASJ 48, L5).

   IX Dra is one of rare ER UMa-type dwarf novae (Ishioka et al. (2001)
PASJ 53, L51).  Since the object will be still bright for several days to
a week, further detailed observations will be welcomed.  When reporting
the data, please also send them to Uemura-san and Ishioka-san
(uemura@kusastro.kyoto-u.ac.jp and ishioka@kusastro.kyoto-u.ac.jp).

Regards,
Taichi Kato
VSNET Collaboration team

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