{
  "bibcode": "2013GCN.14998....1C",
  "body": "S. B. Cenko (NASA/GSFC), A. Gal-Yam (Weizmann Institute), M. M. Kasliwal\n(OCIW), D. Stern (JPL), K. Markey, E. Alduena, A. Alduena, and S. Kuo\n(Walden) report on behalf of a larger collaboration:\n\nWe have obtained further spectroscopy of the optical afterglow (Singer et\nal., GCN 14967) of the Fermi-GBM (Collazzi et al., GCN 14972), Fermi-LAT\n(Cheung et al., GCN 14971), and IPN (Hurley et al., GCN 14974) GRB\n130702A.  Observations were obtained with the Double Spectrograph mounted\non the 5 m Palomar Hale telescope beginning at 5:27 UT on 2013 July 8 (6.2\ndays after the Fermi GBM trigger) and cover the wavelength range from\n3400-8900 A.  Compared with our previous optical spectra (Mulchaey et al.,\nGCN 14985), the source shows a significantly redder continuum.  Similar to\nSchulze et al. (GCN 14994), a number of broad features are detected that\nare reminiscent of canonical GRB-associated supernovae such as SN 2006aj\nand SN 1998bw.  A plot of our most recent spectrum, alongside comparable\nepochs from SN 2006aj (Modjaz et al., ApJL, 2006, 645, 21) and SN 1998bw\n(Patat et al., ApJ, 2001, 555, 900), both retrieved from the Weizmann\nInteractive Supernova Data Repository (WISEREP;\nhttp://www.weizmann.ac.il/astrophysics/wiserep/) is available here:\n\nhttp://astro.berkeley.edu/~cenko/public/grb/GRB130702A/GRB130702A_20130708.png",
  "circularId": 14998,
  "createdOn": 1373416112000,
  "email": "cenko@srl.caltech.edu",
  "subject": "GRB 130702A: P200 Spectroscopic Confirmation of Associated Supernova",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 130702A"
}