{
  "bibcode": "2022GCN.32126....1R",
  "body": "A.Ridnaia, D. Frederiks, A.Lysenko, D. Svinkin,\nA. Tsvetkova,  M. Ulanov, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nA short, soft, SGR-like burst\ntriggered Konus-Wind on 2022 May 25 at\nT0=25816.58 s UT (07:10:16.580).\n\nThe Konus-Wind ecliptic latitude response is consistent\nwith the SGR 1935+2154 position. So, taking in account\nthe ongoing bursting activity of this source, burst\ntime history, and softness of its spectrum (as observed\nby Konus-Wind), we suggest that this burst is likely\na SGR flare originated from SGR 1935+2154.\n\nThe burst light curve shows a single pulse\nstarted at ~T0-72 ms with a total duration of ~194 ms.\nThe emission is seen up to ~200 keV.\n\nThe Konus-Wind light curve of this burst is available at\nhttp://www.ioffe.ru/LEA/SGRs/220525_T25816/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 2.55(-0.10,+0.10)x10^-6 erg/cm2,\nand a 16-ms peak flux, measured from T0-0.014 s,\nof 2.08(-0.16,+0.16)x10^-5 erg/cm2/s\n(both in the 20 - 500 keV energy range).\n\nThe spectrum of the burst\n(measured from T0 to T0+0.192 s)\nis best fit in the 20 - 200 keV range\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nwith  alpha = 0.22(-0.54,+0.61)\nand Ep = 36(-3,+2) keV (chi2 = 20/18 dof).\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 32126,
  "createdOn": 1653582741000,
  "email": "ridnaia@mail.ioffe.ru",
  "subject": "Konus-Wind detection of a burst from SGR 1935+2154 on 2022 May 25",
  "submitter": "Anna Ridnaia at Ioffe Institute  <ridnaia@mail.ioffe.ru>",
  "eventId": "SGR 1935+2154"
}