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[vsnet-campaign-dn 296] IY UMa: preliminary results of the last night observation at Kyoto

IY UMa: preliminary results of the last night observation at Kyoto

    In our last night observation on IY UMa, we have succeeded in 
detecting four eclipses during 7 hours run.  The depth of the eclipses 
is about 2.5mag.  The ingress is sharp and the egress have a somewhat 
long shoulder.  A hot-spot can be responsible.  The bottom looks 
relatively flat, which may imply that this observation covers 
early phase of the outburst.  Our light curve shows no evidence 
of presense of humps. 

    Our tonight run will start from 14:00 (UT).

Regards,
M. Uemura, R. Ishioka, T. Kato, M. Katsura, H. Iwamatsu
at Kyoto University

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