{
  "bibcode": "2020GCN.27074....1H",
  "body": "Anna Y. Q. Ho and Andy Tzanidakis (Caltech) report on behalf of the GROWTH\ncollaboration:\n\nOn 2020-02-14 UT we obtained spectroscopy of three of the reported ZTF\noptical transients (Kasliwal et al. GCN 27051) inside the error region of\nS200213t (LVC,GCN #27042) using the Double Beam Spectrograph on the\n200-inch Hale Telescope at Palomar Observatory. We used SNID to make\npreliminary classifications.\n\nThe spectrum of AT2020cjb/ZTF20aamvnth shows a broad emission feature\nconsistent with H-alpha at the host redshift of z=0.06, corroborating the\nSN II classification reported in Castro-Tirado et al. GCN #27063.\n\nThe spectrum of AT2020cjc/ZTF20aamvoeh is a match to a type Ia SN at z~0.14\nclose to maximum light.\n\nThe spectrum of AT2020cja/ZTF20aamvmzj has a blue continuum and a broad\nemission feature around 5600AA.\n\nObservations of additional sources are ongoing.",
  "circularId": 27074,
  "createdOn": 1581733035000,
  "email": "annayqho@gmail.com",
  "subject": "LIGO/Virgo S200213t: DBSP spectroscopy of AT2020cjb/ZTF20aamvnth, AT2020cja/ZTF20aamvmzj, AT2020cjc/ZTF20aamvoeh",
  "submitter": "Anna Ho at Caltech  <annayqho@gmail.com>",
  "eventId": "LIGO/Virgo S200213t"
}