{
  "bibcode": "2021GCN.31150....1Z",
  "body": "Y. Q. Zhang, S. L. Xiong, C. Cai, S. Xiao, P. Zhang, \nC. Y. Li, S. L. Xie, X. Y. Zhao, Y. Huang, X. Y. Song,\nJ. C. Liu,  Y. Zhao, Z. W. Guo, C. Zheng, W. C. Xue, C. W. Wang, \nQ. B. Yi, B. X. Zhang,  W. X. Peng, R. Qiao, D. Y. Guo, X. B. Li, \nX. Ma, L. M. Song, P. Wang, J. Wang, Z. Zhang, S. J. Zheng, W. Chen, \nJ. J. He, G. Y. Zhao, Y. Q. Du, H. Wu, J. Liang, Q. Luo, X. L. Zhang, \nH. M. Zhang, Z. H. An, M. Gao, K. Gong, B. Li, C. Li, J. H. Li, \nX. Q. Li, Y. G. Li, X. H. Liang, X. J. Liu, Y. Q. Liu, X. L. Sun, \nY. L. Tuo, J. Z. Wang, X. Y. Wen, Y. B. Xu, Y. P. Xu, S. Yang, \nC. Y. Zhang, D. L. Zhang, Fan Zhang, Fei Zhang,\nX. Zhou, F. J. Lu, S. N. Zhang (IHEP)\nreport on behalf of GECAM team:\n\nDuring the commissioning phase, GECAM-B was triggered by a short burst, \nGRB 211106A, at 2021-11-06T04:37:31.250 UTC (denoted as T0), which was \nalso observed by Swift/BAT-GUANO (GCN #31049), Fermi/GBM Sub-Threshold\n(GCN #31055), Konus-Wind (GCN #31054), INTEGRAL/SPI-ACS (TrigID #9504)\nand IPN (GCN #31078).\n\nAccording to the GECAM-B light curves, this burst mainly consists of \ntwo pulses with duration of about 2 s.\n\nThe GECAM light curve could be found here:\nhttp://twiki.ihep.ac.cn/pub/GECAM/GRBList/gecamb_lc_grd_89872651.PNG\n\nGECAM location is consistent with the Swift/BAT position within the error.\n\nThe time-integrated spectrum (measured from T0-0.25 s to T0+1.85 s) \nis best fit by the power law model (in the 20 keV - 5 MeV range):\nA(E) ~ k * E^(-alpha) with alpha = 1.32 (-0.13, 0.15).\nThe burst had a fluence of 6.35 (3.72, 7.05)x10^-7 erg/cm^2 (20 - 200 keV)\nduring the time interval metioned above. \nAll parameters in parenthesis are for 90% confidence level.\n\nPlease note that all GECAM results here are preliminary. The final analysis\nwill be published in journal papers or GECAM online catalog.\n\nGravitational wave high-energy Electromagnetic Counterpart All-sky Monitor\n(GECAM) mission consists of two small satellites (GECAM-A and GECAM-B) in\nLow Earth Orbit (600 km, 29 deg), launched on Dec 10, 2020 (Beijing Time),\nwhich was funded by the Chinese Academy of Sciences (CAS).",
  "circularId": 31150,
  "createdOn": 1638266916000,
  "email": "yqzhang@ihep.ac.cn",
  "subject": "GRB 211106A: GECAM detection",
  "submitter": "Y Q Zhang at IHEP  <yqzhang@ihep.ac.cn>",
  "eventId": "GRB 211106A"
}