Spectroscopic Classifications of Optical Transients with the Lick Shane telescope

ATel #12908; C. Rojas-Bravo, J. Brown, G. Dimitriadis, R. J. Foley (UCSC), H. Stacey (UCSC/Thacher), Y. Yao (Caltech)
on 8 Jul 2019; 03:42 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cesar Rojas Bravo (crojasbr@ucsc.edu)

Tweet

We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. Targets were supplied by ATLAS. All observations were made on 2019 Jul 6 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

 
Name       | IAU Name  | RA (J2000)  | Dec (J2000)  |   z   | Type  | Phase  | Notes
 
ATLAS19nzt | AT2019iks | 15:17:54.27 | +20:50:12.82 | 0.040 |  Ia   |  +7 d  | (1) 
ATLAS19oif | AT2019kcx | 12:14:10.68 | -00:50:45.57 | 0.025 |  Ia   |  -5 d  | (2) 

Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) Relatively red continuum with rest-frame Na D EW ~ 0.8 A. We measure an Si II 6355 velocity of -10,800 km/s. (2) Projected offset of ~28 kpc from nominal host galaxy, CGCG 013-107. We measure an Si II 6355 velocity of -13,000 km/s.