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[vsnet-campaign 440] Re: LX And : photometry results of past outburst
On Tue, Aug 22, 2000 at 11:09:00PM -0000, Tonny Vanmunster wrote:
> Dear all,
>
> Following the announcement in VSNET-OUTBURST of an LX And outburst detection by M. Simonsen on Aug 12th, I conducted unfiltered CCD photometry sessions on this object at CBA Belgium Observatory, using the 0.35-m f/6.3 telescope and ST-7 CCD. Observations were done on August 12/13, 2000, for a total of 4.0 hours, and on August 13/14 for a total of 2.9 hours.
>
> The resulting light curve is more or less flat, with presumably traces of short term modulations with very low amplitude (around 0.01 mag). Previous CCD photometry on this object at CBA Belgium Observatory, during the December 1999 outburst, also showed irregular, small amplitude modulations. Large-amplitude light variations are clearly absent.
>
> The dwarf nova nature of LX And has only recently been revealed. See IBVS 4831 (Uemura et al.) for a detailed discussion.
To me the outburst behaviour of LX And appears to be atypical for a SU UMa-type
dwarf nova, but more characteristic for a UGSS (or possibly UGZ) star.
Regards,
Patrick
vsnet-adm@kusastro.kyoto-u.ac.jp
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