[vsnet-campaign-v4641sgr 39] V4641 Sgr: Berto Monard's observation on May 24

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

V4641 Sgr: Berto Monard's observation on May 24

Dear Colleagues,

    We have received another run from Berto Monard.  The light curve becomes
more "oscillatory" rather than "chaotic".  The amplitude of the oscillations
is mostly 0.5 mag (period 0.02-0.05 d).  The oscillations are more dominated
by hump-like features than dip-like features.  However, at the end of the
run, there was a precipitous decline by 0.5 mag in 2 min (!).  The record of
the rapid fading was unfortunately terminated by an accident on Berto's
computer!

Regards,
Taichi Kato
VSNET Collaboration team

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