[vsnet-alert 12723] ER UMa: negative superhumps!
tkato at kusastro.kyoto-u.ac.jp
Fri Jan 28 16:08:06 JST 2011
ER UMa: negative superhumps!
Akazawa-san (Okayama U. of Sci. team) has reported observations on
three nights. The combined data can be well expressed (O-C's within 0.005 d)
by a period of 0.06224(1) d. This superhump period is shorter than Porb
(0.06366(3) d) by 2.3%. To my knowledge, this is the first indication
of negative superhumps during an SU UMa (ER UMa)-type superoutburst.
Detailed analysis will be presented by Ohshima-san.
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