GCN Circular 2789
Subject
GRB 041006: Colour measurement
Date
2004-10-08T21:26:52Z (20 years ago)
From
Paul Price at IfA,UH <price@ifa.hawaii.edu>
G. Da Costa (RSAA, ANU) and N. Noel (IAC) report:
We have reduced our observations of the afterglow of GRB 041006 (GCN
#2765). From observations of several photometric standards taken the
same night, we find that the star at coordinates 00:54:37.96,
+01:13:00.7 J2000 (i.e. south west of the offset star in the finder from
GCN #2766) has B = 18.28 mag and V = 17.35 mag. From these, we estimate
that the afterglow had a B-V colour of approximately 0.28 +/- 0.03 mag
around 2004 Oct 6.58 UT.