{
  "bibcode": "2011GCN.11887....1Y",
  "body": "T. Yasuda, Y. Terada, M. Tashiro, W. Iwakiri, K. Takahara (Saitama U.),\nT. Uehara, Y. Hanabata, T. Takahashi, Y. Fukazawa (Hiroshima U.),\nN. Vasquez (Tokyo Tech.) K. Yamaoka (Aoyama Gakuin U.), S. Sugita\n(Nagoya U.), M. Ohno, M. Suzuki, M. Kokubun, T. Takahashi (ISAS/JAXA),\nY. E. Nakagawa, T. Tamagawa (RIKEN), N. Ohmori, M. Yamauchi (Univ. of\nMiyazaki), Y. Urata, P. Tsai (NCU), K. Nakazawa, K. Makishima (Univ. of\nTokyo), on behalf of the Suzaku WAM team, report:\n\nThe GRB 110402A (Swift/BAT trigger #450545; Ukwatta et al.) triggered\nthe Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range\nof 50 keV - 5 MeV at 2011-04-02 00:12:58.49 UT (=T0).\n\nThe observed light curve shows a multi-peaked structure starting at\nT0-1.5s, ending at T0+83.5s, with a duration (T90) of about 70 seconds.\nThe fluence in 100 - 1000 keV was 9.1 (+0.9, -0.9) x 10^-6 erg/cm^2.\n\nThe 1-s peak flux measured from T0+1s was 5.72 photons/cm^2/s in the\nsame energy range.\n\nPreliminary result shows that the time-averaged spectrum from T0-1.5 s\nto T0+83.5 s is well fitted by a single power-law with a photon index of\n1.57 (+0.11, -0.10) (chi^2/d.o.f = 44.73/31).\n\nAll the quoted errors are at statistical 90% confidence level, in which\nthe systematic uncertainties are not included.\n\nThe light curves for this burst will be update at:\n\nhttp://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html",
  "circularId": 11887,
  "createdOn": 1302095927000,
  "email": "tashiro@phy.saitama-u.ac.jp",
  "subject": "GRB 110402A: Suzaku WAM observation of the prompt emission",
  "submitter": "Makoto Tashiro at Saitama U/Swift  <tashiro@phy.saitama-u.ac.jp>",
  "eventId": "GRB 110402A"
}