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CAL 86 outburst, data from Berto Monard Dear Colleagues, Berto Monard has kindly sent Feb. 24 data of CAL 86. The object was fading at a rate of 1.1 mag/d. Although there seems to be a weak signal with a period of ~0.07 d, its amplitude is less than 0.02 mag. These modulations, if any, may be related to orbital humps (or possibly some sort of superhumps??). There was a similar detection of a signal during a rapid fading of an SU UMa-type dwarf nova with a similar orbital period (e.g. AQ Eri, Kato and Matsumoto (1999) IBVS No. 4767). It would be worth following the further progress of the outburst. Regards, Taichi Kato VSNET Collaboration team
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