[vsnet-alert 354] superoutburst of HS Vir

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

Dear Colleagues,

    During the monitoring of dwarf novae ta Ouda Station, we noticed this
morning HS Vir (PG 1341-079) is undergoing a bright outburst (V~13.7).
A preliminary analysis of the subsequent time-resolved photometry clearly
showed a typical superhump with an amplitude of 0.3 mag.  Altouhgh this
cataclysmic variable has been suspected to be an SU UMa-type dwarf nova
due to its short orbital period (0.0836 day) determined by Ringwald (1993),
the present observation first confirmed this suggestion.  For a long-term
behavior of HS Vir, see also IBVS No. 4193.

    We hope we can soon make materials available through the VSNET WWW
and ftp.

Regards,
Taichi Kato and Ouda team

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