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GCN Circular 4046

Subject
GRB 050922C: further VLT observations
Date
2005-09-28T17:17:39Z (19 years ago)
From
Stefano Covino at Brera Astronomical Observatory <covino@merate.mi.astro.it>
S. Covino, S. Piranomonte, D. Fugazza, F. Fiore, D. Malesani, G.
Tagliaferri, G. Chincarini, L. Stella on behalf of the MISTICI
collaboration report:

We are following the decay of the optical afterglow of GRB 050922C
(Norris et al., GCN 4013) with the ESO VLT+FORS1. 
Multi-band BVR photometry was carried out on September 24 at 00:10 UT,
about 1.2 days after the high-energy event.
A preliminary calibration, based on Landolt standard stars, have been
performed and the OT magnitude in the R band was:

R = 21.57 +/- 0.05 

confirming the break in the light curve reported by Fynbo et al. (GCN
4040). 

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