[vsnet-alert 2995] OGLE-1999-BUL-11 - possible binary event

[Michal Szymanski <msz@sirius.astrouw.edu.pl>]

POSSIBLE BINARY LENS ALERT.

OGLE-1999-BUL-11 event light curve clearly deviates from a single
microlensing fit. If it really is a microlensing event, it is
quite likely a binary event. Follow-up observations are strongly
encouraged.

Field          BUL_SC36
StarNo         336761
RA(J2000.0)    18:05:29.59
Dec(J2000.0)   -27:59:14.4
Remarks        

"single" event fit parameters:

  Tmax   2451291.220     0.255
  tau         13.706     0.976
  Amax         3.956     0.281
  Dmag         1.493     0.077
  I0          18.541     0.011

Finding charts, light curve plots, photometric data (updated regularly)
can be found in:
 
http://vsnet.astrouw.edu.pl/~ftp/ogle/ogle2/ews/bul-11.html
http://vsnet.astrouw.edu.pl/ogle/ogle2/ews/1999/bul-11.tar.gz
 
regards, OGLE team.

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