{
  "bibcode": "2019GCN.25574....1P",
  "body": "F. Piron (CNRS/IN2P3/LUPM), F. Longo (Univ. and INFN Trieste), M. \nAxelsson (KTH and Stockholm Univ.), M. Arimoto (Kanazawa Univ.), J. L. \nRacusin (NASA/GSFC) and E. Bissaldi (Politecnico and INFN Bari) report \non behalf of the Fermi-LAT Collaboration:\n\nFermi-LAT observed the position of GRB 190829A, which was detected by \nFermi-GBM (GCN Circ. 25551), Swift (GCN Circ. 25552), and H.E.S.S. (GCN \nCirc. 25566). The GRB position was in the LAT field of view at the time \nof the GBM trigger (T0= 2019-08-29 19:55:53 UTC), and remained visible \nuntil ~T0+1100 s. No high-energy gamma-ray emission was detected by the \nLAT in the initial interval or any subsequent intervals, including \nduring the H.E.S.S. observations.\n\nLAT upper limits (95% confidence level, 100 MeV - 1 GeV), assuming a \nphoton index of -2.0, cover the following intervals:\n\nTime Interval ��       Energy Flux (erg/cm2/s)���� �� �� Photon Flux (ph/cm2/s)\n\n0-1.1 ks�� �� �� �� �� �� �� ����      5.3e-10�� �� �� �� ��  �� �� �� �� �� �� 1.3e-6\n0-10 ks�� �� �� �� �� �� ��      �� �� 3.2e-10�� �� �� �� ��  �� �� �� �� �� �� 7.9e-7\n10-30 ks�� �� �� ��       �� �� �� �� 1.4e-10 ��                     3.5e-7\n15-30 ks (H.E.S.S. interval)�� 1.8e-10�� �� ��  �� �� �� �� �� ������ �� 4.3e-7\n\n\nThe Fermi-LAT point of contact for this burst is Frederic Piron \n(piron@in2p3.fr).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the \nenergy band from 20 MeV to greater than 300 GeV. ��It is the product of \nan international collaboration between NASA and DOE in the U.S. and many \nscientific institutions across France, Italy, Japan and Sweden.",
  "circularId": 25574,
  "createdOn": 1567168674000,
  "email": "piron@in2p3.fr",
  "subject": "GRB 190829A: Fermi-LAT Upper Limits",
  "submitter": "Frederic Piron at CNRS/IN2P3/LUPM  <piron@in2p3.fr>",
  "eventId": "GRB 190829A"
}