{
  "bibcode": "2014GCN.15882....1S",
  "body": "M. Serino (RIKEN), S. Ueno, H. Tomida, S. Nakahira, M. Kimura, \nM. Ishikawa, Y. E. Nakagawa (JAXA), T. Mihara, M. Sugizaki, \nM. Morii, J. Sugimoto, T. Takagi, A. Yoshikawa, M. Matsuoka (RIKEN), \nN. Kawai, R. Usui, T. Yoshii, Y. Tachibana (Tokyo Tech), \nA. Yoshida, T. Sakamoto, Y. Nakano, Y. Kawakubo, H. Ohtsuki (AGU), \nH. Tsunemi, M. Sasaki (Osaka U.), H. Negoro, M. Nakajima, \nK. Fukushima, T. Onodera, K. Suzuki (Nihon U.), \nY. Ueda, M. Shidatsu, T. Kawamuro, T. Hori (Kyoto U.), \nY. Tsuboi, M. Higa (Chuo U.), M. Yamauchi, K. Yoshidome, \nY. Ogawa, H. Yamada (Miyazaki U.), K. Yamaoka (Nagoya U.) \nreport on behalf of the MAXI team:\n\nThe MAXI/GSC detected a rapid increase of the count rate in\nall six working counters at 2014-02-19T19:45:58.15 UT.\nThe time is consistent with GRB 140219A \n(Hurley et al., GCN 15864; Zhang, GCN 15866; Guiriec et al., GCN 15867;\nGolenetskii et al., GCN 15870).\nThe IPN postion of GRB 140219A was not in the field of view of any of the \nMAXI Gas Slit Cameras, implying that the detected counts are produced by the \nhard X-rays that penetrated the Ti counter walls with Pb shiled, or the phosphor \nbronze collimator with Al housing of GSC, or by the Compton-scattered electrons \ninduced by the gamma-rays. It suggests that this GRB was exceptionally bright \nand hard.\n\nThe light curve shows an intense spike with a duration of ~0.2 s followed by\na bright emission until T0+~2.5 s. A weak emission lasts until T0+~20 s.\nThe peak count rate is ~2000 c/s per counter (GSC_3).\nThe MAXI/GSC light curve of this GRB is available at\nhttp://maxi.riken.jp/news/en/?p=1101 .\n\nThere was no significant excess flux in the transits before and after the\nGRB at UT 19:40 and 21:13 with an upper limit of 20 mCrab (4-10 keV, 1 sigma)\nfor each.\n\n-- \nMotoko SERINO <motoko@crab.riken.jp>",
  "circularId": 15882,
  "createdOn": 1393384091000,
  "email": "motoko@crab.riken.jp",
  "subject": "GRB 140219A: MAXI/GSC detection",
  "submitter": "Motoko Suzuki at RIKEN  <motoko@crab.riken.jp>",
  "eventId": "GRB 140219A"
}