{
  "bibcode": "2015GCN.18273....1Z",
  "body": "WeiKang Zheng, Alexei V. Filippenko and Heechan Yuk (UC Berkeley),\nYinan Zhu (NAOC) and Daniel A. Perley (Dark Cosmology Center)\nreport on behalf of the KAIT GRB team:\n\nWe observed the optical afterglow of GRB 150910A (Pagani et al., \nGCN 18264; Zheng & Filippenko, GCN 18265) with the Kast spectrograph\non the 3m Shane telescope at Lick Observatory, started at 10:08 UT\n(about 1.1 hours after the burst), covering the 3500 - 10000 A   \nwavelength range. A 1200-second and a 2400-second exposures\nwere acquired.\n\nThe spectrum shows blue continuum flux across the entire spectral\nrange. We detect absorption lines from Mg II (2796,2803) and Fe II\n(2344,2374,2383) at a common redshift of z=1.359, as well as additional\nlines further to the blue. We suggest this as the likely redshift of\nthe GRB.",
  "circularId": 18273,
  "createdOn": 1441929909000,
  "email": "weikang@berkeley.edu",
  "subject": "GRB 150910A: Kast spectroscopy from 3m Shane telescope",
  "submitter": "Weikang Zheng at UC Berkeley  <weikang@berkeley.edu>",
  "eventId": "GRB 150910A"
}