GCN Circular 1159
Subject
Correction: GCN1157 (GRB 011121)
Date
2001-11-24T21:23:49Z (23 years ago)
From
Knut Olsen at CTIO <kolsen@ctio.noao.edu>
The values of the R and I-band extinctions reported in GCN 1157
incorrectly used the ratios of total to selective absorption appropriate
for Johnson, rather than Cousins, filters. The correct extinction
values are A_R=1.328 and A_I=0.964, rather than A_R = 1.16 and A_I =
0.74. The intrinsic colors are then (V-R) = 0.53 and (V-I) = 0.75.
Many thanks to Kris Stanek for pointing out the mistake.
Knut Olsen