[vsnet-grb-info 8064] XRF 090702: a long soft GRB localized with INTEGRAL
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Thu Jul 2 21:34:31 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 9603
SUBJECT: XRF 090702: a long soft GRB localized with INTEGRAL
DATE: 09/07/02 12:34:25 GMT
FROM: Diego Gotz at CEA <diego.gotz at cea.fr>
A. Paizis (IASF-Milano), D.Gotz (CEA-Saclay), S.Mereghetti, (IASF-
Milano), Wakiko Ishibashi, C. Ferrigno, M. Beck (ISDC, Versoix), and
J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team
report:
A long gamma ray burst with a soft spectrum, and without any
detectable signal above 40 keV has been detected by IBAS in the IBIS/
ISGRI data at 10:40:37 U.T. on July 2nd. Its duration is about 10 s
and its refined coordinates (J2000) are:
R.A.: 175.888 [degrees]
DEC.: +11.501 [degrees]
with an uncertainty of 2.5 arcmin (90% c.l.).
A preliminary analysis gives a peak flux in the 20-200 keV range of
about 0.15 ph/cmsq/s (1 s integration time) and a fluence over the same
energy range of about 1.5e-7 erg/cmsq.
A plot of the light curve will be posted at
http://ibas.iasf-milano.inaf.it/IBAS_Results.html
This message can be cited.
More information about the vsnet-grb-info
mailing list