{
  "bibcode": "2012GCN.12828....1I",
  "body": "W. Iwakiri, M. Tashiro, Y. Terada, T. Yasuda, K. Takahara, M. Asahina, \nS. Kobayashi, A. Sakamoto (Saitama U.) Y. Hanabata, T. Uehara, T. Kawano, \nK. Takaki, M. Mizuno, M. Ohno, Y. Fukazawa (Hiroshima U.), \nS. Sugita (Nagoya U.), K. Yamaoka (Aoyama Gakuin U.), M. Kokubun, \nT. Takahashi (ISAS/JAXA), Y. E. Nakagawa (Waseda U.), N. Ohmori, M. Akiyama, \nM. Yamauchi (Univ. of Miyazaki), C-J. Chuang, Y. Urata, P. Tsai (NCU), \nK. Nakazawa, K. Makishima (Univ. of Tokyo), \non behalf of the Suzaku WAM team, report:\n\nThe long GRB 120107A (Fermi-GBM trigger 347620337; Fermi-LAT detection: \nZheng & Akerlof, GCN 12822; IPN triangulation: Hurley et al., GCN 12823) \ntriggered the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy \nrange of 50 keV - 5 MeV at 09:12:15.352 UT (=T0). \n\nThe observed light curve shows a multi-peaked structure starting at T0-2 s \nand ending at T0+24 s with a duration (T90) of about 22 seconds. The fluence \nin 100 - 1000 keV was 3.98 (-0.31, +0.28) x 10^-6 erg/cm^2. The 1-s peak flux \nmeasured from T0 s was 1.94 (-0.37, +0.22) photons/cm^2/s in the same energy range.\n\nPreliminary result shows that the time-averaged spectrum from T0-2 s to T0+24 s \nis well fitted by a single power-law with a photon index of 2.43 (-0.23, +0.28) \n(chi^2/d.o.f = 20.5/25).\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 now available at:\nhttp://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html",
  "circularId": 12828,
  "createdOn": 1326342227000,
  "email": "yamaoka@phys.aoyama.ac.jp",
  "subject": "GRB 120107A: Suzaku WAM observation of the prompt emission",
  "submitter": "Kazutaka Yamaoka at Aoyama Gakuin U  <yamaoka@phys.aoyama.ac.jp>",
  "eventId": "GRB 120107A"
}