GCN Circular 9762
Subject
GRB 090809: WHT observations
Event
Date
2009-08-10T17:50:15Z (16 years ago)
From
Klaas Wiersema at U of Leicester <kw113@star.le.ac.uk>
K. Wiersema (Leicester), D. Malesani (DARK/NBI), A. Levan, D. Steeghs, L. van
Spaandonk (Warwick) report on behalf of a larger collaboration:
We observed the field of GRB 090809 (Markwardt et al. GCN 9754) with the
William Herschel Telescope using the ACAM instrument. Observations
consisted of 4 x 300 second exposures with a sloan i filter, starting on
August 9, 23:41 UT (6.16 hrs after burst). We clearly detect the afterglow
(Markwardt et al. GCN 9754, Xu et al. GCN 9755) with i = 20.48 +/- 0.03
(calibrated using SDSS stars).