{
  "bibcode": "2004GCN..2517....1F",
  "body": "A. V. Filippenko, R. Chornock, and R. J. Foley, University of California,\nBerkeley, report that CCD spectra (range 310-940 nm) of SN 2003dh, associated\nwith GRB 030329 (GCN 1985; GCN 2107), were obtained on Dec. 21 UT with the\nKeck I 10-m telescope (+LRIS). Skies were clear, the seeing was about 1\",\nand the exposure time was 2.5 hours (five dithered half-hour integrations).\nThe object continues to exhibit broad [O I] 630 nm emission typical of Type\nIb/Ic supernovae in the nebular phase (e.g., Foley et al. 2003, PASP, 115,\n1220). There is also evidence for weak, significantly narrower [Ca II] 730 nm\nemission. There may be some weak, broad features in other parts of the\nspectrum, but subtraction of a template spectrum of the host galaxy (which\ndominates the continuum at this time) will be necessary to confirm these.",
  "circularId": 2517,
  "createdOn": 1074204626000,
  "email": "chornock@astro.berkeley.edu",
  "subject": "SN 2003dh/GRB030329 late-time optical spectroscopy",
  "submitter": "Ryan Chornock at UC Berkeley  <chornock@astro.berkeley.edu>",
  "eventId": "GRB 030329"
}