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[vsnet-alert 5972] AL Com: rapidly decline!!
- Date: Tue, 12 Jun 2001 16:09:17 +0900
- To: vsnet-campaign-dn@kusastro.kyoto-u.ac.jp, vsnet-superoutburst@kusastro.kyoto-u.ac.jp, vsnet-alert@kusastro.kyoto-u.ac.jp
- From: Ryoko Ishioka <ishioka@kusastro.kyoto-u.ac.jp>
- Subject: [vsnet-alert 5972] AL Com: rapidly decline!!
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
Dear colleagues,
Our yesterdays observation shows that AL Com is rapidly fading.
Its magnitude is ~16.7 mag. At 8 June, the object was still bright
at ~14.8 mag. So the decline rate during these three days is ~0.6 mag/day
(before 8 June, the decline rate was ~0.1 mag/day).
AL Com was 14.7 at 10.949 June (UT) in the report of visual observations
from Gary Poyner. Probably, the rapid decline occured during 10.949 and
11.5 (UT): 24 dars after the onset of the current outburst. In the 1995
outburst, another long lasting outburst started following the rapid decline
28 days after the the onset of the outburst.
More observations in this phase are strongly needed.
Regards,
Ryoko Ishioka
VSNET Collaboration team
Return to Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp