(All information courtesy of the instrument teams.)
Previous IAU Circulars
Results of Observations
GCN Circular #21326
S.Mereghetti (IASF-Milano), D.Gotz (CEA, Saclay), C.Ferrigno, E.Bozzo,and
J.Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report:
a gamma ray burst lasting about 30 s has been detected by IBAS in the
IBIS/ISGRI data at 05:05:15 UT of July 10, 2017. Its significance was
below the threshold for automatic alert delivery
The refined coordinates (J2000) are:
R.A.= 352.2526 deg
DEC.= +51.2935 deg
with an uncertainty of 2.5 arcmin (90% c.l.).
The burst had a peak flux of 0.3 counts/cm2/s (20-200 keV, 1-s integration
time) and a fluence in the same energy range of about 4x10e-7 erg/cmq.
A plot of the light curve will be posted at
GCN Circular #21462
K. P. Mooley (Hintze Fellow, Oxford), T. D. Staley, R. P. Fender
(Oxford), G. E. Anderson (Curtin), T. Cantwell (Manchester), D.
Titterington, S. H. Carey, J. Hickish, Y. C. Perrott, N. Razavi-Ghods,
P. Scott (Cambridge), K. Grainge, A. Scaife (Manchester)
The AMI Large Array triggered on the INTEGRAL alert for GRB 170710C
(Mereghetti et al., GCN 21326) as part of the 4pisky program, and
subsequent follow up observations were obtained up to 12 days
post-burst. Our observations at 15 GHz on 2017 Jul 14.22, Jul 17.14, Jul
18.14 and Jul 21.11 (UT) do not reveal any transient radio source within
the INTEGRAL error circle (Mereghetti et al., GCN 21326), with 3sigma
upper limits of 108 uJy, 90 uJy, 123 uJy and 108 uJy respectively.
We thank the AMI staff for scheduling these observations. The AMI-GRB
database is a log of all GRB follow up observations with the AMI, and is
available at http://4pisky.org/ami-grb/.