GCN Circular 7002
Subject
GRB 071025A: Complex Early-Time IR Behavior, Simultaneous with Gamma- and X-rays
Date
2007-10-25T20:40:25Z (17 years ago)
From
Josh Bloom at UC Berkeley <jbloom@astron.berkeley.edu>
J. S. Bloom, N. R. Butler, D. A. Perley, D. L. Starr, R. Foley (UC
Berkeley) report:
"We obtained simultaneous J, H, and Ks band images with fine time
sampling (7.8s cadence) of the afterglow (Rykoff et al. 6987; Covino
et al. 6988) of GRB 070125A (Pagani et al. 6986) with PAIRITEL (*)
beginning ~200s after the BAT trigger. The beginning of the
observations coincides with the fading tale of the prompt emission.
The IR light curve initially rises, then exhibits two prominent peaks
(at T+~500s and T+~1500s) before fading as a powerlaw t^{-1.5+/-0.1},
after t ~ 2000s. A refined data reduction and a search for potential
color variations are in progress."
This message may be cited.
(*) http://pairitel.org
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Joshua Bloom
Assistant Professor, UC Berkeley
601 Campbell Hall, Berkeley, CA 94720
(510) 643-3839 [Office] 447 Campbell
(510) 643-4621 [Lab] 260 Evans
http://astro.berkeley.edu/~jbloom
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