{
  "bibcode": "2005GCN..3343....1G",
  "body": "S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks\non behalf of Konus-Wind and Helicon/Coronas-F teams, and\nT. Cline on behalf of the Konus-Wind team,\nand\nA. Rau, A. von Kienlin, G. Lichti on behalf of the INTEGRAL SPI-ACS\nGRB team report:\n\nOn May 2 Konus-Wind detected two SGR-like bursts in the trigger mode.\n\nThe first one triggered Konus-Wind at 5376.421 s UT (01:29:36.421). \nIt was also detected by INTEGRAL SPI-ACS.\nBecause the burst was soft, the SPI-ACS response is very weak,\nand precise triangulation of this burst is not possible.\nWe conservatively estimated that the time delay was 3.6 +/- 0.4 s\nwhich is consistent with the expected time delay for SGR 1806-20\n(=3.651 s). Additionaly, the Konus ecliptic latitude response\nindicates that the burst source is near the ecliptic plane,\nso we believe that this burst originated from SGR 1806-20.\nThe burst is unusually long with a duration of ~4.5 s,\nbut relatively weak.\nAs observed by Konus-Wind, the burst had a fluence  ~2.0x10^-5 erg/cm2,\nand a peak flux ~6x10^-6 erg/cm2 s (both in 20-200 keV range).\nThe time-integrated spectrum of the burst is well fitted by the OTTB\nspectral model:\ndN/dE ~ E^{-1} exp(-E/kT) with kT = 18 +/- 1 keV,\nwhich is typical for this SGR.\n\nThe second burst triggered Konus-Wind \nat  18502.741 s  UT (05:08:22.741). \nAs observed by Konus-Wind, it had a duration ~1 s,\na fluence  ~4.5x10^-6 erg/cm2, a peak flux ~3.7x10^-6 erg/cm2 s\n(both in 20-200 keV range).\n\nAnother two SGR-like bursts (soft and short) were observed \nby Konus-Wind in the background mode \nat 5021 s UT (01:23:41) and 16740 s UT (04:39:00) (also on May 2).\nThe last burst was also detected by Helicon-Corronas-F \nin the background mode.\nThe estimated time delay is consistent with SGR 1806-20 position.\n\nThe Konus ecliptic latitude response indicates\nthat the source of all these bursts is near the ecliptic plane,\nso we suppose, that they are also originated from SGR 1806-20.",
  "circularId": 3343,
  "createdOn": 1115133515000,
  "email": "val@mail.ioffe.ru",
  "subject": "Renewal of SGR 1806-20 activity",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>"
}