[vsnet-alert 9658] 1RXS J023238.8-371812 superhumps update
Taichi Kato
tkato at kusastro.kyoto-u.ac.jp
Thu Oct 11 09:29:01 JST 2007
1RXS J023238.8-371812 superhumps update
We have received further data from Kiyota-san. Recent data
sets now confirm that the mean superhump period is systematically
shorter than the previous estimate. The mean period determined
from observations since Oct 5 is 0.06614(2) d. There was likely
a rapid period change during the early stage of superhump
evolution. Such behavior is relatively frequently seen in
usual SU UMa-type dwarf nova during the early development stage
(usually within a few days following the maximum), but the preceding
long-lasting early bright state in this object is a mystery.
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