[vsnet-obs 38119] vsnet-chat 5084 & reformatted data

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

vsnet-chat 5084 & reformatted data

From: aah@nofs.navy.mil
Date: Mon, 4 Feb 2002 09:26:38 -0700
Subject: [vsnet-chat 5084] V838 Mon colors

I was able to obtain a UBVRI dataset of this variable
last night, with the following results (along with a
typical earlier night for comparison):
HJD          V     B-V    U-B    V-R    R-I
52288.8061  9.898  1.671  1.768  0.934  0.874 
52309.6288  7.464  1.126  0.260  0.710  0.794
with all errors under 0.01mag.  As you can see, VRI colors
are pretty consistent with earlier in the outburst, but
the U and B colors have changed dramatically.  It will
be interesting to see calibrated spectra from the recent brightening.
Arne

---

object         YYYYMMDD(UT)   mag  code
MONV838        20020114.3061 11.569B  HEN
MONV838        20020114.3061 13.337U  HEN
MONV838        20020114.3061 8.090I  HEN
MONV838        20020114.3061 8.964R  HEN
MONV838        20020114.3061 9.898V  HEN
MONV838        20020204.1288 5.960I  HEN
MONV838        20020204.1288 6.754R  HEN
MONV838        20020204.1288 7.464V  HEN
MONV838        20020204.1288 8.590B  HEN
MONV838        20020204.1288 8.850U  HEN

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