[vsnet-alert 365] superhumps in VZ Pyx

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

    Upon notification of an outburst of VZ Pyx by Berto Monard (vsnet-alert
362), we obtained V-band CCD observations on Mar. 18 at Ouda Station, Kyoto
University.  The resultant data clearly show superhumps with an amplitude
of 0.25 mag, and a period of 0.076 day.  The humps show sharp rising branches
and slower declines, which are characteristic of superhumps during the early
stage of a superoutburst.  The present observations thus clearly established
the SU UMa-type nature of this object.  VZ Pyx is probably the first object
below the period gap, which shows both characterstics of an SU UMa-type
dwarf nova and an intermediate polar (from X-ray data, some info. in vsnet-
alert 363).

Regards,
Taichi Kato and Ouda team

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