[vsnet-grb-info 8045] Fermi LAT observations of GRB 090626
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Mon Jun 29 04:08:19 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 9584
SUBJECT: Fermi LAT observations of GRB 090626
DATE: 09/06/28 19:08:13 GMT
FROM: Valerie Connaughton at MSFC <valerie at nasa.gov>
Fred Piron (LPTA), Francesco Longo (INFN/Trieste),
Giulia Iafrate (INAF/OA Trieste), Teddy Cheung (NASA/GSFC),
Hiro Tajima (SLAC) and Valerie Connaughton (UAH) report on
behalf of the Fermi LAT collaboration:
Ground processing of data from the Fermi Large Area Telescope (LAT)
reveals that the LAT significantly detects emission from GRB 090626,
reported as a bright Fermi Gamma-ray Burst Monitor (GBM) burst (von
Kienlin GCN 9579).
The LAT localization of this burst is RA, Dec = 170.01, -33.50 ±
0.32 deg (statistical, 95% CL), with an additional systematic error
estimated at 0.1 deg. There appears to be significant emission
above 100 MeV until about 250 s after the GBM trigger time.
Further information will be available following more detailed
analysis.
The point of contact for this burst is Fred Piron
(frederic.piron at lpta.in2p3.fr).
The Fermi LAT is a pair conversion telescope designed to cover the
energy band from 20 MeV to greater than 300 GeV. It is the product of
an international collaboration between NASA and DOE in the U.S. and
many scientific institutions across France, Italy, Japan and Sweden.
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