[vsnet-outburst 19429] RZ LMi: update and stage A

[Taichi Kato]

RZ LMi: update and stage A

   Enrique de Miguel, Kyoto U. team, Crimean Astrophys.
Obs. team, Geoff Stone, Tonny Vanmunster, Roger Pickard,
Shugarov's team, Dubois's team and Itoh-san have
reported new observations.
The object is now in superoutburst plateau
(stage B).

   In order to show how stage A superhumps appear
and when to observe, I present a quick-look O-C
diagram.

http://www.kusastro.kyoto-u.ac.jp/vsnet/tmp/rzlmioc.png

   Maxima between E=10 and E=20 were likely stage A
superhumps (E < 10 were also likely, but errors were
too large).  It appears that stage A superhumps
lasts for 20 cycles (only one day or even less).
This explains why we need very intensive observations
 *just before* superhumps start to grow.
The epoch E=20 corresponds to 2457484.2 (Apr. 5).
Please consult this result and prepare for the next
timing (please make as long runs as possible after
the object rises to a precursor outburst).