Gamma-ray Burst 100703A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN Circular #10936
  S.Mereghetti, A.Paizis (IASF- Milano), D.Gotz (CEA-Saclay), E. Bozzo, I.Vovk, M. Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report:
  a short gamma ray burst triggered the IBAS detection programs of the IBIS/ISGRI data at 17:43:37.4 UT on July 3rd. The trigger significance was below the threshold for automatic alert distribution. Off-line interactive analysis confirmed that the trigger is most likely due to a short GRB, consisting of a single peak with a duration of about 70 ms. Its refined coordinates (J2000) are:

  RA:    9.522 [deg]
  DEC: -25.710 [deg]
  

  with an uncertainty of 2.8 arcmin (90% c.l.).
  A preliminary analysis gives a fluence in the 20-200 keV range of about 7 10e-7 erg/cmsq (70 ms integration time).
  A plot of the light curve will be posted at
  http://ibas.iasf-milano.inaf.it/IBAS_Results.html
  This message can be cited.