{
  "bibcode": "2022GCN.32057....1S",
  "body": "D. Svinkin, D. Frederiks, A.Lysenko, A.Ridnaia,\nA. Tsvetkova,  M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nThe long-duration GRB 220506A\n(MAXI/GSC detection: Urabe et al., GCN Circ. 32001)\nwas detected by Konus-Wind (KW) in the waiting mode.\n\nA Bayesian block analysis of the KW waiting mode data in\nthe 20-1500 keV band reveals a ~6 sigma count rate increase\nover background in the interval from ~T0-115 s to ~T0-89 s,\nwhere T0 = T0(MAXI) = 23295 s UT (06:28:15).\n\nThe K-W light curve of this burst is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB220506A/\n\nAs observed by Konus-Wind, the burst had a fluence of\n1.46(-0.10,+1.13)x10^-6 erg/cm2 and a 2.944-s peak flux,\nmeasured from ~T0-112 s, of 1.14(-0.28,+0.92)x10^-7 erg/cm2/s\n(both in the 20 - 1500 keV energy range).\n\nModeling the K-W 3-channel time-integrated spectrum\n(from ~T0-115 s to ~T0-89 s)\nby a power law with exponential cutoff (CPL) model\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nyields alpha > -1.0 and Ep = 110(-16,+70) keV.\n\nAll the quoted errors are estimated at the 1 sigma confidence level.\nAll the presented results are preliminary.",
  "circularId": 32057,
  "createdOn": 1652797628000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "Konus-Wind detection of GRB 220506A",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 220506A"
}