Spectroscopic Classifications of Optical Transients with the Lick Shane telescope
ATel #17757; Kishore C. Patra, Ryan J. Foley, Ravjit Kaur (UCSC)
on 18 Apr 2026; 23:26 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Kishore Patra (kcpatra@ucsc.edu)
Subjects: Optical, Supernovae, Transient
We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. The targets were supplied by the Legacy Survey of Space and Time (LSST) and the Zwicky Transient Facility (ZTF). Observations were made on 2026 April 18 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
LSST-AP-DO-170235219334922248 | AT2026ivl | 09:53:53.828 | +01:43:05.64 | 0.09 | SN Ia | -4 d | (1)
ZTF26aarbgpu | AT2026ies | 16:23:37.422 | +39:12:11.82 | 0.02 | SN II | 4 d |
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 Si II 6355 velocity of -11,500 km/s.
