{
  "bibcode": "2007GCN..6790....1N",
  "body": "Y. E. Nakagawa, K. Yamaoka, S. Sugita (Aoyama Gakuin U.), Y. Terada,\nT. Tamagawa (RIKEN), M. Ohno, T. Uehara, T. Takahashi, Y. Fukazawa,\nC. Kira (Hiroshima U.),  M. Tashiro, Y. Urata, A. Endo, K. Onda,\nM. Suzuki, N. Kodaka, K. Morigami (Saitama U.), T. Enoto, R. Miyawaki,\nK. Nakawaza, K. Makishima (Univ. of Tokyo), E. Sonoda, M.Yamauchi,\nS. Maeno, H. Tanaka, R. Hara (Univ. of Miyazaki), M. Kokubun, M. Suzuki,\nT. Takahashi (ISAS/JAXA), S. Hong (Nihon U.),\non behalf of the Suzaku WAM team, report:\n\nThe long GRB 070911 (Swift/BAT trigger #290624 ; Krimm et al., GCN 6777;\nPalmer et al., GCN 6778) triggered the Suzaku Wide-band  All-sky Monitor (WAM)\nwhich covers an energy range of 50 keV - 5 MeV at 2007-09-11 05:58:20 UT (=T0).\n\nThe observed light curve shows a multi-peaked structure lasting from T0-160s\nto T0+120s, with a duration (T90) of about 182 seconds. The fluence in\n100 - 2000 keV was 1.4 (+0.3, -0.3) * 10^-5 erg/cm^2. The 1-s peak flux\nmeasured from T0+0s was 1.1 (+0.3, -0.2) photons/cm^2/s in the same energy\nrange.\n\nPreliminary result shows that the time-averaged spectrum from T0-160s to \nT0+120s is well fitted by a single power-law with a photon index of\n1.9 (+0.3, -0.4) (chi^2/d.o.f = 8.7/16).\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": 6790,
  "createdOn": 1189832566000,
  "email": "yujin@phys.aoyama.ac.jp",
  "subject": "GRB 070911: Suzaku WAM observation of the prompt emission",
  "submitter": "Yujin E. Nakagawa at Aoyama Gakuin U  <yujin@phys.aoyama.ac.jp>",
  "eventId": "GRB 070911"
}