Spectroscopic Classifications of Optical Transients with the Lick Shane telescope
ATel #13880; G. Dimitriadis, E. G. Strasburger (UCSC), J. Johnson (SJSU/UCSC), R. J. Foley (UCSC)
on 20 Jul 2020; 05:42 UT
Credential Certification: Ryan Foley (foley@ucsc.edu)
Subjects: Optical, Supernovae
We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. Targets were supplied by ATLAS, MASTER, and ZTF. All observations were made on 2020 Jul 19 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
MASTER OT | AT2020nti | 02:41:03.98 | +16:58:13.00 | 0.028 | Ia | +7 d | (1)
ATLAS20rxn | AT2020nvw | 15:14:19.66 | +39:55:51.78 | 0.030 | II | +15 d | (2)
ATLAS20sln | AT2020onu | 01:11:27.78 | -17:22:05.60 | 0.044 | Ia | -2 d | (3)
ZTF19aaarhtg | AT2020pki | 21:12:24.30 | +13:00:17.39 | 0.028 | Ia | -1 d | (4)
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) We measure an Si II 6355 velocity of -11,600 km/s. (2) We measure an H-alpha velocity of -9,100 km/s. (3) We measure an Si II 6355 velocity of -11,600 km/s. (4) We measure an Si II 6355 velocity of -8,800 km/s.
