GCN Circular 7406
Subject
GRB 080310: PAIRITEL detection and PAIRITEL+KAIT+UVOT SED
Date
2008-03-11T09:20:24Z (17 years ago)
From
Daniel Perley at U.C. Berkeley <dperley@astro.berkeley.edu>
D. A. Perley, J. S. Bloom, and W. Li (UC Berkeley) report:
PAIRITEL responded to GRB 080310 and began taking data at UT 2008-03-10
09:04:58 in J, H, and K filters simultaneously. The afterglow
(Chornock et al., GCN 7381) is well-detected in all three filters. We
report the following magnitudes:
t_mid(s) exp(s) magnitude
1833 259 J = 15.63 +/- 0.03
1833 259 H = 14.94 +/- 0.03
1833 259 K = 14.29 +/- 0.03
Combining PAIRITEL data with 347 KAIT observations (calibrated to SDSS
DR6) and the UVOT magnitudes reported by Hoversten et al. (GCN 7398), we
generate a UV-through-IR spectral energy distribution interpolated to
the midpoint of the PAIRITEL observations. The SED is well-fit by an
intrinsic power-law spectral index of beta ~ 0.6 with a small amount
(A_V = 0.10 +/- 0.05) of SMC-like host-galaxy extinction:
http://lyra.berkeley.edu/~dperley/080310/080310sed.png
Additional, late-time follow-up is planned.