{
  "bibcode": "2016GCN.19424....1Y",
  "body": "A. Yoshida, T. Sakamoto, Y. Kawakubo, M. Moriyama, Y. Yamada (AGU), \nK. Yamaoka (Nagoya U), S. Nakahira (JAXA), I. Takahashi (IPMU), Y. Asaoka, \nS. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), W. Ishizaki (ICRR), \nM. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena) \nand the CALET collaboration:\n\nThe long-duration GRB 160509A (Longo et al., GCN circ. 19403; Ono et al., \nGCN circ. 19404; Roberts et al., GCN circ. 19411; Frederiks et al., GCN circ. 19417) \ntriggered the CALET Gamma-Ray Burst Monitor (CGBM) at 08:58:51.21 on 9 May 2016.  \nThe burst signal was seen by all CGBM instruments.  The angular separations between \nthe GRB position (Kennea et al., GCN 19408) and the boresignt of the HXM and \nthe SGM instrument at the trigger time were 108 deg. and 104 deg., respectively.  \nTherefore, the GRB was outside the field of view of the CAL instrument.\n\nThe light curve of the SGM shows multiple overlapping pulses with a broad structure \nstarting from T0-5 sec, peaking at T0+9 sec and ending at T0+30 sec.  A hint of the \nemission is seen at T0+~370 sec.  The T90 duration measured by the SGM data is \n14.6 +- 0.6 sec (40-1000 keV).\n\nThe CGBM data used in this analysis are provided by the Waseda CALET Operation Center\nlocated at the Waseda University.",
  "circularId": 19424,
  "createdOn": 1463035272000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 160509A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 160509A"
}