{
  "bibcode": "2019GCN.25543....1C",
  "body": "A. J. Castro-Tirado (IAA-CSIC), A. F. Valeev (SAO-RAS), Y.-D. Hu (IAA-CSIC),\nE. Fernandez-Garcia (IAA-CSIC), V. V. Sokolov (SAO-RAS), I. Carrasco and\nA. Castellon (UMA), D. L. Tucker (Fermilab), M. Soares-Santos (Brandeis U)\nand S. Geier (GRANTECAN, IAC, ULL), on behalf of a larger collaboration, \nreport:\n\nFollowing the detection of desgw-190814j (AT2019nxe) (Soares-Santos et al.,\nGCNC 25425) and desgw-190814q (AT2019obc) (Soares-Santos et al., GCNC 25438 )\nwithin the error area of the GW event S190814bv (LVC, GCNC 25324), we obtained\nimaging and optical spectra covering the range 5100-10000 A with the 10.4m GTC\ntelescope equipped with OSIRIS in La Palma (Spain) starting on Aug 23, 02:10 UT.\n\nAT2019nxe is located 1.8 arcsec away from the center of the host galaxy and on\nAug 23, 02:15 UT the magnitude was measured to be r = 20.39 +/- 0.07.  The spectrum\n(broad lines) is consistent with a SNIa near the maximum at the nearby host galaxy\nredshift (z = 0.0777 +/- 0.0005, based on the narrow emission lines from the galaxy).\n\nAT2019obc is located 1.8 arcsec away from the center of the host galaxy.  Cross-\ncorrelating the spectrum (broad lines) with supernova template spectra in SNID\n(Blondin & Tonry, 2007), we find a good match to the spectra of SNIa at few days\npost maximum at a redshift of 0.216 +/- 0.005.\n\nTherefore we consider that both AT2019nxe and AT2019obc are unrelated to the GW\nevent S190814bv.",
  "circularId": 25543,
  "createdOn": 1567081170000,
  "email": "ajct@iaa.es",
  "subject": "LIGO/Virgo S190814bv: AT2019nxe and AT2019obc 10.4m GTC spectroscopy",
  "submitter": "Alberto J. Castro-Tirado at IAA-CSIC  <ajct@iaa.es>",
  "eventId": "LIGO/Virgo S190814bv"
}