(cba:news) A new SU UMa for mid-year from the MACHO Project

[Jonathan Kemp]

A new CV of possible interest to some of you...

Jonathan

---------- Forwarded message ----------
Date: Mon, 15 Jan 2001 20:44:42 -0500 (EST)
From: Doug Welch <welch at physics.mcmaster.ca>
To: Jonathan Kemp <jk at cbastro.org>
Subject: (cba:news) A new SU UMa for mid-year from the MACHO Project

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DISCOVERY OF SU UMA-TYPE CATACLYSMIC VARIABLE
     D.L. Welch, McMaster University, on behalf of the MACHO
collaboration (cf. IAUC 6312), reports the discovery of an
SU UMa-type cataclysmic variable in the MACHO Project photometry
database, confirmed by inspection of images. The variable is
located at R.A. = 18h03m06s.03, Decl. = -27o30'45".5 (equinox
2000.0) and normally appears V=18.8 mag or fainter. 
During the period 1997 March 9.74 to 1999 Oct 21.40 UT, the 
MACHO Project collected 1165 observations of this object with 
the Mt. Stromlo 1.27-m telescope and normal outbursts appeared 
at intervals of approximately 10 days. Normal outbursts typically
peaked at V=16.6 mag.  At least six superoutbursts occured during 
this period, with peak brightnesses of about V=15.6 mag and 
durations of 10 days or longer. Finding charts, lightcurve plots 
and data can be obtained at http://www.macho.mcmaster.ca/CV/index.html.