{
  "bibcode": "2009GCN..8913....1G",
  "body": "S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P.\nOleynik, M. Ulanov and T. Cline, on behalf of the Konus-Wind team,\nreport:\n\nTwo very bright SGR bursts triggered Konus-Wind\nat 2009-02-21 T0=55653.101 s UT (15:27:33.101) and 2009-02-22 \nT0=1694.689 s UT (00:28:14.689). The first was also detected by \nFermi/GBM (trigger 256922856). The GBM location is consistent with the \nAXP/SGR 1E1547.0-5408 position. The Konus ecliptic latitude response \nindicates that the source of these bursts is in the south ecliptic \nhemisphere. So, we believe they originated from AXP/SGR 1E1547.0-5408.\n\nPreliminary estimations yields for the first burst\na fluence of ~1.6x10^-5 erg/cm2, a peak flux on 2ms time scale of \n~2.3x10^-4 erg/cm2/s (both in the 20-300 keV), and Ep ~50 keV for the \ntime-integrated spectrum,\nand for the second burst a fluence of 4.3x10^-6 erg/cm2, a peak flux on \n2ms time scale of ~1.4x10^-4 erg/cm2/s (both in the 20-300 keV), and Ep \n~40 keV for the time-integrated spectrum.\n\nThe Konus-Wind light curves of these bursts are available at \nhttp://www.ioffe.ru/LEA/SGRs/090221_T55653/\nand\nhttp://www.ioffe.ru/LEA/SGRs/090222_T01694/\n\nSince January 29 (Golenetskii et al., 8863) seven bright bursts from the \nAXP/SGR 1E1547.0-5408 have triggered Konus-Wind:\n------------------------------------\n     Date          T0, s UT\n------------------------------------\n2009-02-03  8722.534 (02:25:22.534)\n2009-02-03 70382.351 (19:33:02.351)\n2009-02-04 73637.930 (20:27:17.930)\n2009-02-12 43144.456 (11:59:04.456)\n2009-02-14 70303.255 (19:31:43.255)\n2009-02-21 55653.101 (15:27:33.101)\n2009-02-22 01694.689 (00:28:14.689)\n------------------------------------",
  "circularId": 8913,
  "createdOn": 1235321758000,
  "email": "val@mail.ioffe.ru",
  "subject": "Ongoing activity of AXP/SGR 1E1547.0-5408",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>"
}