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[vsnet-alert 7462] AB Nor: most probably growing superhumps!
- Date: Mon, 2 Sep 2002 19:23:29 +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 7462] AB Nor: most probably growing superhumps!
- Cc: vsnet-gcvs@ooruri.kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
AB Nor: most probably growing superhumps!
Dear Colleagues,
We have received a new data from Peter Nelson. A CCD image from
Peter Nelson has been relayed to Yamaoka-san for outburst astrometry.
A combination of the Sep. 1-2 data from Peter Nelson and Berto Monard
is now best explained by a phenomenon of growing superhumps. In hours
or a day, we can expect a full growth of superhumps! Please keep
a continous watch! The best superhump period determined from the Sep. 1-2
data is 0.0826(10) d, although other period cannot be still perfectly
excluded. A phase-averaged light curve of the superhumps is placed at
http://vsnet.kusastro.kyoto-u.ac.jp/pub/vsnet/DNe/AB_Nor/absh.gif
Congratulations to Peter Nelson and Berto Monard! Please continue
observing AB Nor, since the object is expected to show a dramatic change
just now!
Regards,
Taichi Kato
VSNET Collaboration team
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