{
  "bibcode": "2008GCN..8676....1G",
  "body": "S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, and \nand T. Cline, on behalf of the Konus-Wind team,\n\nJ. Cummings, S. Barthelmy, N. Gehrels, and H. Krimm, on behalf of\nthe Swift-BAT team,\n\nOn December 11, Konus-Wind detected in the waiting mode a short spike at \n06:12:58 UT, ~120 s before the BATSS GRB 081211B (Copete et al., GCN \n8661). The burst was seen as a single 2.9s-long spike in the G1 (20-70 \nkeV) and G2 (70-300 keV) bands. The BAT also detected this burst at \n06:12:55.1 UT as a weak single pulse that did not produce a significant \non-board image. The BATSS position of GRB 081211B was 1.3% coded in the \nBAT at the time of this burst.\nThe measured propagation time delay from Swift to Wind as well as the \nK-W ecliptic latitude response for a short spike are consistent with the \nposition of GRB 081211B. Hence, taking in account that the BATSS \nGRB081211B light curve shape suggests that it is possibly the tail end \nof the prompt emission of a burst (Copete et al., GCN 8661), we believe \nthat the short spike detected by Konus-Wind and BAT is the main burst \n(likely short), followed by a long tail (extended emission) seen as the \nBATSS GRB081211B.\nThere is a hint of the extended emission in the K-W G1 and G2 bands.\n\nThe K-W light curve of this GRB is available at \nhttp://www.ioffe.ru/LEA/GRBs/GRB081211B/",
  "circularId": 8676,
  "createdOn": 1229451597000,
  "email": "val@mail.ioffe.ru",
  "subject": "GRB 081211B - possibly a short burst with extended emission",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>",
  "eventId": "GRB 081211B"
}