[vsnet-alert 24237] ER UMa: frequent outbursts again

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Wed Apr 29 11:42:33 JST 2020

ER UMa: frequent outbursts again

   Crimean Astrophys. Obs. team has reported further
observations.  The object currently undergoes outbursts
every four days.  Together with this, the apparent absence
of negative superhumps suggest that the system returned
to its ordinary (positive superhump) state after
the most recent superoutburst.  The object should have
been in negative superhump state before this, as judged
from the small number of normal outbursts.

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