{
  "bibcode": "2007GCN..6616....1K",
  "body": "C. Kira, M. Ohno, T. Uehara, T. Takahashi, Y. Fukazawa (Hiroshima U.),\nK. Yamaoka, Y. E. Nakagawa, S. Sugita (Aoyama Gakuin U.),\nK. Morigami, N. Kodaka, K. Onda, M. Tashiro, M. Suzuki,Y. Urata, A. Endo (Saitama U.),\nT. Enoto, R. Miyawaki, K. Nakawaza, K. Makishima (Univ. of Tokyo),\nS. Hong (Nihon U.),\nM. Kokubun, M. Suzuki, T. Takahashi (ISAS/JAXA),\nE. Sonoda, M. Yamauchi, S. Maeno, H. Tanaka, R. Hara(Univ. of Miyazaki),\nT. Tamagawa, Y. Terada (RIKEN), \nand Suzaku WAM team report:\n\nThe long burst, GRB 070704 (Swift/BAT trigger #283791; T. Sakamoto et al., GCN Circ. 6594;\nA. Melandri et al., GCN Circ. 6602; S. Karpov et al., GCN Circ.6603) was triggered \nat T0=2007-07-04 20:05:02 UT by Suzaku Wide-band All-sky Monitor (WAM)\nwhich covers the energy range of 50 keV - 5 MeV.\nThe observed light curve shows the multiple peaked structures \nwith a duration (T90 in the 50-5000 keV band) of nearly 35 seconds.\nAccording to the GCN Report 69.2, the light curve observed by Swift BAT shows an upsurge\naround T0+350, while in the light curve by Suzaku WAM, there is no such a structure.\n\nThe fluence in the 100-1000 keV band was (8.4+/-1.7)*10^-6 erg/cm^2,\nand the 1-s peak flux in the same band was 0.19+/-0.06 photons/cm^2/s.\nPreliminary result shows that the time-averaged spectrum from T0-5 to T0+40 is\nwell fitted by single power law with a photon index of 2.0+/-0.4 in 100-1000 keV range.\n\nAll the quoted errors are at the 90% confidence level, \nwhile systematic errors are not included.\n\nThe WAM light curve of this event is available at the following URL.\nhttp://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html",
  "circularId": 6616,
  "createdOn": 1184067557000,
  "email": "ohno@hirax7.hepl.hiroshima-u.ac.jp",
  "subject": "GRB 070704: Suzaku/WAM observation of the prompt emission",
  "submitter": "Masanori Ohno at Hiroshima U  <ohno@hirax7.hepl.hiroshima-u.ac.jp>",
  "eventId": "GRB 070704"
}