{
  "bibcode": "2012GCN.14006....1Y",
  "body": "T.Yasuda, M. Tashiro, Y. Terada, W. Iwakiri, K. Takahara,\nM. Asahina, S. Kobayashi, A. Sakamoto, Y. Ishida,\nH. Ueno, S. Sugimoto (Saitama U.),\nM. Akiyama, N. Ohmori, E. Mochinaga, M. Yamauchi (Univ. of Miyazaki),\nK. Yamaoka, Y. E. Nakagawa (Waseda U.),\nY. Hanabata, T. Kawano, K. Takaki, R. Nakamura, Y.Tanaka, M. Ohno,\nY. Fukazawa (Hiroshima U.), S. Sugita (Nagoya U.), M. Kokubun, T.\nTakahashi (ISAS/JAXA),\nY. Urata, P. Tsai (NCU), K. Nakazawa, K. Makishima (Univ. of Tokyo),\non behalf of the Suzaku WAM team, report:\n\nThe long GRB 121123A (Helder et al., GCN 13982; Zhao et al., GCN 13983;\nYurkov et al., GCN 13984; Foley, GCN 13985; Xu et al., GCN 13986;\nGuziy et al., GCN 13987; Volnova et al., GCN 13988; Melandri et al.,\nGCN 13989; Barthelmy et al., GCN 13990; Evans et al., GCN 13991;\nSchmidl et al., GCN 13992) was detected by the the Suzaku Wide-band \nAll-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV\nat 10:06:00 UT (=T0).\n\nThe observed light curve shows a single peak followed by a long weak\ntail seen up to T0+74 s with a duration (T90) of about 73 seconds.\nThe fluence in 100 - 1000 keV was 7.72 (+0.44/-7.11) x 10-6 erg/cm^2.\nThe 1-s peak flux measured from T0+33 s was\n0.74 (+0.54/-0.34) photons/cm^2/s in the same energy range.\n\nPreliminary result shows that the time-averaged spectrum from T0+1 s to\nT0+74 s is well fitted by a single power-law with a photon index\nof 3.29 (+0.64/-0.50) (chi2/d.o.f = 4.7/11).\n\nThe light curves with 1-sec time resolution for this burst will be\nappeared at:\nhttp://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/untrig/grb_table.html",
  "circularId": 14006,
  "createdOn": 1354028595000,
  "email": "tashiro@phy.saitama-u.ac.jp",
  "subject": "GRB 121123A: Suzaku WAM observation of the prompt emission",
  "submitter": "Makoto Tashiro at Saitama U/Swift  <tashiro@phy.saitama-u.ac.jp>",
  "eventId": "GRB 121123A"
}