Spectroscopic Classifications of Optical Transients with the SOAR telescope
ATel #14445; G. Dimitriadis, M. R. Siebert (UCSC), C. R. Angus, L. Izzo (DARK, U Copenhagen), L. DeMarchi , C. D. Kilpatrick (Northwestern)
on 7 Mar 2021; 17:41 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Georgios Dimitriadis (gdimitri@ucsc.edu)
Subjects: Optical, Supernovae
We report the following classifications of optical transients from spectroscopic observations with the Goodman spectrograph on the Southern Astrophysical Research (SOAR) telescope. Targets were supplied by ATLAS and ZTF. All observations were made on 2021 March 7 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
ATLAS21eii | AT2021cly | 03:58:37.25 | -10:19:33.03 | 0.037 | Ib | +10 d |
ZTF21aaljjvt | AT2021dha | 11:31:38.45 | +14:04:34.63 | 0.080 | Ia | +8 d | (1)
ATLAS21hjy | AT2021eng | 10:22:52.88 | -00:37:58.02 | 0.079 | Ia | -4 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) We measure an Si II 6355 velocity of -11,400 km/s. (2) We measure an Si II 6355 velocity of -10,600 km/s.
