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A recent paper by Masetti et al. provides a BVRI sequence in the field of
GRB 020405. I show below coordinates for the stars from the Edinburgh
SuperCOSMOS catalogue, along with V magnitudes and BVRI colors for the stars.
For two stars only B and U data were shown. The I-band data were taken with
a Gunn i filter, and the transformation to Cousins I appears to have been
unsuccessful, with the colors coming out too red if B-V and V-R are taken to
be correct. For star 3, the B-V and V-R colors are inconsistent. The BVR
colors for the remainder look OK.
\Brian
source: 2003A&A...404..465M
GRB 020405 field stars
ID RA (J2000) Dec s V B-V V-R V-i
5 13 58 07.23 -31 22 57.4 E 17.92 0.26 0.20 0.47
1 13 57 56.92 -31 21 30.7 E 18.69 0.88 0.52 1.14
3 13 58 05.14 -31 20 52.7 E 18.85 0.49 0.35 0.73
2 13 58 00.22 -31 22 28.6 E 19.01 0.83 0.53 1.14
6 13 58 07.38 -31 22 50.6 E 19.35 1.10 0.68 1.35
4 13 58 07.19 -31 22 00.0 E 19.49 0.60 0.35 0.77
A 13 58 02.93 -31 23 34.1 E B=16.00
B 13 58 03.06 -31 22 56.5 E B=17.74
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