GCN Circular 12864
Subject
GRB 120119A: PROMPT optical observation of early afterglow
Date
2012-01-19T05:29:06Z (12 years ago)
From
Aaron LaCluyze at U.North Carolina <lacluyze@email.unc.edu>
A. LaCluyze, J. Haislip, K. Ivarsen, D. Reichart, J. Moore, M. Nysewander,
A. Trotter, R. Egger, A. Foster, A. Oza, T. Cromartie, E. Speckhard, and J.
A. Crain report:
Skynet observed the field of GRB 120119A with the PROMPT telescopes located
at CTIO in Chile. Observations in B, R, and I began at 04:05:08 UT, 38
seconds after the burst. We detect an optical source consistent with the
UVOT position reported by Beardmore et. al. (GCN 12859) in all three
filters. �The optical afterglow faded for the first ~2.3 minutes, then
brightened until approximately minute 14, after which it resumed fading.
The afterglow is red, with (I - R) ~ 1 mag and (R - B) ~ 2 mag. �
A preliminary light curve can be found at:
http://skynet.unc.edu/grb/grb120119a.png
Further observations are ongoing.
