[vsnet-alert 912] (fwd) V485 Cen (Patterson)

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

From owner-vsnet-obs@kusastro.kyoto-u.ac.jp Mon May 19 03:17 JST 1997
Date: Sun, 18 May 1997 14:16:17 -0400 (EDT)
From: Joe Patterson <jop@astro.columbia.edu>
To: vsnet-obs@kusastro.kyoto-u.ac.jp
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Subject: [vsnet-obs 5798] V485 Cen
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     Paul Warhurst, University of Auckland, has reported a time series
of differential photometry of the erupting dwarf nova V485 Cen, which
clearly shows a wave at a period of 60+-3 min, close to the 59-minute
orbital period discovered by Augusteijn et al. (1994).  The full
amplitude is about 0.18 mag.

     Additional timings of this wave over the next 5-10 days,
especially over a range of terrestrial longitudes, are critical to
specify the nature of the wave in this mysterious star -- unique in the
CV zoo.  We would love to hear from observers who are able to obtain
data.  We have been using comparison stars 3 arcmin WNW and 1 arcmin W
from the variable (chart in Downes & Shara, Feb 1993 PASP).


Joe Patterson
Center for Backyard Astrophysics (NY)
jop@astro.columbia.edu



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