{
  "bibcode": "2019GCN.23623....1Z",
  "body": "Z.P. Zhu, D. Xu, Y. Wang, J.B. Zhang (NAOC), J.H. Liu, X. Zhang (XAO) \nreport:\n\nWe observed the optical afterglow of GRB 190106A (Sonbas et al., GCN \n23615) using the Xinglong-2.16m telescope equipped with BFOSC. We \nacquired 1x3600 s and then 1x2400 s spectra starting at 14:02:39 UT on \n2019-01-06, i.e., 27.9 mins after the burst. The optical afterglow was \nR~16 mag at this time.\n\n From preliminary analysis, a continuum is detected across the spectral \nrange of 3600 - 9000 AA. A few absorption features are also detected due \nto Fe II, Al II, Mn II, Mg II doublet, and Mg I, at a redshift of \nz~0.896, which we propose as the likely redshift of the GRB.",
  "circularId": 23623,
  "createdOn": 1546795389000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 190106A: Xinglong-2.16m spectroscopy",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 190106A"
}