[AAVSO-HEN] INT+WFC R-band observations of GRB 080205

[grb at aavso.org]

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TITLE:   GCN CIRCULAR
NUMBER:  7258
SUBJECT: INT+WFC R-band observations of GRB 080205
DATE:    08/02/06 03:12:46 GMT
FROM:    Evert Rol at U.Leicester  <er45 at star.le.ac.uk>

E. Rol (U. of Leicester) and J. Anderson (LJMU) report for a larger
collaboration:

We observed the position of GRB 080205 with the Isaac Newton Telescope 
equipped with the Wide Field Camera at Roque de Los Muchachos. 
Observations were carried out in R-band, for 30 minutes starting at 23:05 
UT.

We detect the afterglow with a magnitude of R = 23.50 +/- 0.11; our
photometry is calibrated to several USNO B1.0 R2 magnitudes.

Compared with the early (unfiltered) 17.0 magnitude KAIT measurement
(Li et al., GCN 7251), this indicates a slightly shallower powerlaw
decay than the initial -1.6 (Li et al, GCN 7254), suggestive of
underlying contamination by a host galaxy. At the source position,
however, there is no clear evidence for extended emission.