[vsnet-outburst 25759] MASTER OT J213908.79+161240.2: likely showing (early) superhumps

[反保雄介]

MASTER OT J213908.79+161240.2: likely showing (early) superhumps

Kyoto Univ. Obs. have reported observations of MASTER OT
J213908.79+161240.2 for two nights.
I see a sign of superhumps with a period of  0.0577(3) d, although I cannot
judge whether this is double-peak or not due to the quality of data.
Since it's only 2 days from the discovery, this modulation could be an
early superhump. It's short period also suggests that this system is a good
candidate for WZ Sge-type dwarf nova.

More observation will clarify the existence of early superhumps and the
period of observation.
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京都大学大学院理学研究科宇宙物理学教室 M2
Kyoto University, Graduate School of Department of Astronomy, M2
反保 雄介 Yusuke TAMPO
MAIL: tampo at kusastro.kyoto-u.ac.jp

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