{
  "bibcode": "2009GCN.10094....1O",
  "body": "N. Ohmori, E. Sonoda, K. Kono, H. Hayashi, A. Daikyuji, \nY. Nishioka, K. Noda, M. Yamauchi (Univ. of Miyazaki),\nM. Ohno, M. Suzuki, M. Kokubun, T. Takahashi (ISAS/JAXA),\nK. Yamaoka, S. Sugita (Aoyama Gakuin U.), Y. E. Nakagawa,\nT. Tamagawa (RIKEN), S. Hong (Nihon U.), N. Vasquez (Tokyo Tech.),\nY. Hanabata, T. Uehara, T. Takahashi, Y. Fukazawa (Hiroshima U.),\nW. Iwakiri, M. Tashiro, Y. Terada, A. Endo, K. Onda,\nT. Sugasahara (Saitama U.), Y. Urata (NCU),\nT. Enoto, K. Nakazawa, K. Makishima (Univ. of Tokyo),\non behalf of the Suzaku WAM team, report:\n\nThe long GRB 091026 (Swift-BAT trigger #373871; Markwardt et al.,\nGCN Circ. 10081) triggered the Suzaku Wide-band All-sky \nMonitor (WAM) which covers an energy range of 50 keV - 5 MeV\nat 13:11:29.812 UT (=T0).\n\nThe observed light curve shows a multi-peaked structure, starting at\nT0-1 s and ending at T0+13 s, with a total duration (T90) of about 9 s.\nThe fluence in 100 - 1000 keV was 1.47 (-0.40, +0.29) x 10^6 erg/cm^2.\nThe 1-s peak flux measured from T0+1.5 s was 0.59 (-0.30, +0.19)\nphotons/cm^2/s in the same energy range.\n\nPreliminary result shows that the time-averaged spectrum from\nT0-1 s to T0+13 s is well fitted by a single power-law with \n a photon index of 1.86 (-0.25, +0.33) (chi^2/d.o.f. = 77/50).\n \nAll the quoted errors are at statistical 90% confidence level,\nin which the systematic uncertainties are not included.\n\nThe light curves for this burst will be available at:\nhttp://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html",
  "circularId": 10094,
  "createdOn": 1256713419000,
  "email": "ohmori@astro.miyazaki-u.ac.jp",
  "subject": "GRB 091026: Suzaku WAM observation of the prompt emission",
  "submitter": "Norisuke Ohmori at Miyazaki U  <ohmori@astro.miyazaki-u.ac.jp>",
  "eventId": "GRB 091026"
}