{
  "eventId": "GRB 260411C",
  "body": "V. Panteleeva, D. Frederiks, A. Lysenko, A. Ridnaia, D. Svinkin,\nA. Tsvetkova,  M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nThe long-duration GRB 260411C\ntriggered Konus-Wind at T0=21236.871 s UT (05:53:56.871).\n\nThe burst light curve shows a single pulse\nwhich starts at ~T0-14.9 s and has a total duration of ~24.3 s.\nThe emission is seen up to ~1 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB260411_T21236/\n\nAs observed by Konus-Wind, the burst\nhad the total fluence of 1.31(-0.08,+0.08)x10^-5 erg/cm2,\nand the 64-ms peak flux, measured from T0+1.584 s,\nof 7.72(-0.94,+0.93)x10^-6 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nThe time-averaged spectrum of the burst\n(measured from T0 to T0+8.448 s)\nis best fit in the 20 keV - 10 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -1.54(-0.09,+0.08),\nthe high energy photon index beta = -3.23(-6.77,+0.37),\nthe peak energy Ep = 105(-6,+8) keV\n(chi2 = 85/81 dof).\n\nAll the quoted errors are at the 68% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 44461,
  "subject": "Konus-Wind detection of GRB 260411C",
  "createdOn": 1777923536675,
  "submittedHow": "web",
  "submitter": "Valentina Panteleeva at Ioffe Institute <panteleevav228@gmail.com>",
  "format": "text/plain"
}