[vsnet-alert 9533] HS2331+3905 rapid brightening

Hiroyuki Maehara maehara at kwasan.kyoto-u.ac.jp
Wed Sep 5 06:02:57 JST 2007


Dear colleagues,

I performed time-series photometry just after the outburst detection.
The data show rapid brightening trend at a rate of 10.5 mag/day!
This star is in a initial stage of the (super?)outburst.

Further time-resolved observations are strongly encouraged.

Best regards,
Hiroyuki Maehara
VSNET Collaboration Team


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