{
  "bibcode": "2018GCN.22414....1C",
  "body": "V. Cunningham (U of Maryland), J. D. Neill (Caltech), S. B. Cenko\n(NASA GSFC), and R. Walters (Caltech) report on behalf of the\nSEDM team:\n\nWe observed the optical counterpart to GRB 180205A (Evans et al.,\nGCN 22381) with the Spectral Energy Distribution Machine (SEDM)\non the 60 inch telescope at Palomar Observatory. The SEDM is a low\nresolution (R ~ 100) integral field unit spectrometer with a multi-band\n(ugri) ���rainbow��� camera imager (see Blagorodnova et al., 2017,\n astro-ph/1710.02917).\n\nThe SEDM began observing the optical counterpart at 04:44 UTC\n(18 minutes after the burst trigger time). We performed 2 x 1350 s\nexposures over the wavelength range 3800-10600 A. We see no strong\nevidence for emission or absorption features at the quoted redshift of\nz=1.409 (Tanvir et al., GCN 22384). The continuum emission is well-fit\nby a power law spectrum with index alpha = 0.77 (f_nu ~ nu^-alpha).\n\n[GCN OPS NOTE(07sep19): Per author's request, in the last sentence\nthe \"alpha = 0.67\" was changed to \"alpha = 0.77\".]",
  "circularId": 22414,
  "createdOn": 1518535827000,
  "email": "vcunning@astro.umd.edu",
  "subject": "GRB 180205A: SEDM Observations",
  "submitter": "Virginia Cunningham at U of MD  <vcunning@astro.umd.edu>",
  "eventId": "GRB 180205A"
}