[vsnet-alert 13017] ER UMa: period increase of negative superhumps

[Taichi Kato]

ER UMa: period increase of negative superhumps

   During the fading stage of the current superoutburst, the period of
negative superhumps has become appreciably longer (currently 0.06241(3) d).
There were significant waves (temporary fading and brightening) during the
fading stage, which were not observed during the January superoutburst.
These variations would provide a clue to understanding negative superhumps.
Observations have been getting sparse, and intensive continued observations
are requested.

   Please send your reports also to Ohshima-san (as usual) in order to assure
a quick analysis.