{
  "bibcode": "2009GCN.10237....1H",
  "body": "H. Hayashi, Y.Nishioka, N. Ohmori, A. Daikyuji,E. Sonoda, K. Kono,\n K. Noda, M. Yamauchi (Univ. of Miyazaki), T. Sugasahara, M. Tashiro, \n Y. Terada, A. Endo, K. Onda, W. Iwakiri (Saitama U.), \n S. Sugita(Nagoya U.), K. Yamaoka (Aoyama  Gakuin U.),\n M. Ohno, M. Suzuki, M. Kokubun, T. Takahashi (ISAS/JAXA),\n Y. E. Nakagawa, T. Tamagawa (RIKEN), N. Vasquez (Tokyo Tech.),\n Y. Urata, H.M  Lin (NCU), Y. Hanabata, T. Uehara, T. Takahashi,\n Y. Fukazawa (Hiroshima U.), T. Enoto, K. Nakazawa,\n K. Makishima (Univ. of Tokyo), S. Hong (Nihon U.),\n on behalf of the Suzaku WAM team, report\n\nThe short GRB 091126A (Fermi/GBM trigger #280915166 ; Tierney et al., \nGCN 10223) triggered the Suzaku Wide-band  All-sky Monitor (WAM) which \ncovers an energy range of 50 keV - 5 MeV at 2009-11-26 07:59:24.67 UT (=T0)\n\nThe observed light curve shows a single peak starting at T0 , ending \nat T0+0.5 s with a duration (T90) of about 0.3 seconds.\nThe fluence in 100 - 1000 keV was 5.76 (-1.72,+1.47) x10^-7 erg/cm^2. \nThe 1-s peak flux measured from T0  was 1.57 (-0.84,+0.39) photons/cm^2/s \nin the same energy range.\n\nPreliminary result shows that the time-averaged spectrum from T0 to \nT0+0.5 s is well fitted by a single power-law with a photon index \nof 2.27 (-0.43,+0.55) (chi^2/d.o.f. = 20/16).\n\nThe power-law with exponential cutoff model also gives a good fit with  \nthe Epeak of 303(-99,+151) keV, assuming the power-law index of -0.6 as  \nwas reported by Tierney et al. (GCN 10223).\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 are available at:\n\nhttp://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html",
  "circularId": 10237,
  "createdOn": 1259820766000,
  "email": "hayasi@astro.miyazaki-u.ac.jp",
  "subject": "GRB 091126A: Suzaku WAM observation of the prompt emission",
  "submitter": "Hidenori Hayasi at Miyazaki U  <hayasi@astro.miyazaki-u.ac.jp>",
  "eventId": "GRB 091126A"
}