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[vsnet-alert 7453] BF Ara rapid fading stage with double superhumps!
- Date: Thu, 29 Aug 2002 14:14:55 +0900 (JST)
- To: vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp, vsnet-campaign-dn@ooruri.kusastro.kyoto-u.ac.jp, vsnet-superoutburst@ooruri.kusastro.kyoto-u.ac.jp
- From: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>
- Subject: [vsnet-alert 7453] BF Ara rapid fading stage with double superhumps!
- Sender: owner-vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
BF Ara rapid fading stage with double superhumps!
Dear Colleagues,
Peter Nelson has kindly sent a new set of CCD observations of BF Ara
(now established SU UMa star) taken on Aug. 27. The data show a rapid
fading at a rate of 1.4 mag/day. The star seems to have entered its
rapidly declining stage. Double-wave superhumps (likely usual
superhumps and late superhumps) are strikingly seen. Thanks to all
observers, we now have a nearly complete picture of the BF Ara superoutburst,
recorded in detail first time in the history!
Further observations (if possible) are strongly encouraged to follow
the development of late superhumps, and expected next normal outburst(s).
Regards,
Taichi Kato
VSNET Collaboration team
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