GCN Circular 14523
Subject
GRB 130427A: SARA-N optical observations
Event
Date
2013-05-01T20:29:14Z (13 years ago)
From
Dieter Hartmann at Clemson.U <hdieter@clemson.edu>
Aman Kaur, Dieter Hartmann (Clemson University), and William C. Keel (U.
of Alabama, Tuscaloosa), report:
We continued our observations of GRB 130427A (Maselli, et al., GCN 14448)
with the SARA 0.9m telescope at KPNO (http://saraobservatory.org)
starting on April 29. We obtained a total of 190 min exposure in the R
band, with a sequence of 36 five min exposures, and one ten min
exposure.
We detect the optical afterglow (Elenin et al; GCN14450) decay between R
= 19.2 and R = 19.4
during that sequence, which implies a temporal power law decay of the flux
density with a slope of
alpha ~ 0.8
Magnitudes are not corrected for Galactic extinction.
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