[vsnet-alert 12898] SDSS J133941.11+484727.5 : unstable superhumps?

Ohshima ohshima at kusastro.kyoto-u.ac.jp
Sat Feb 26 03:40:26 JST 2011


SDSS J133941.11+484727.5 : unstable superhumps?

 We have further observations from Akazawa-san, Oksanen, and Masi.
This object is declining from the plateau stage now. It is striking
that the superhump profile and period became pretty stable after Feb 25.
Though variations like superhumps are still seen, Clearly peaks with the
period ever seen, that of around 0.058 d, are not seen any more. 0.05 ~
0.15 mag variations with 0.04 -- 0.07 d period are insteadly seen.
Further observations are required though fainter than before.


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