Spectroscopic Classifications of AT2023alb with Keck I + LRIS
ATel #15885; K. W. Davis, K. Taggart, R. J. Foley (UCSC)
on 2 Feb 2023; 21:18 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ryan Foley (foley@ucsc.edu)
Subjects: Optical, Supernovae
We report the following the classification of AT2023alb from spectroscopic observations with the LRIS spectrograph on the Keck I telescope, made on 2023 Jan 25 UT. The target was supplied by the Young Supernova Experiment (YSE). The classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
PS23qy | AT2023alb | 11:07:42.420 | +56:51:19.67 | 0.14 | Ia | -5d | (1)
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 a Si II 6355 absorption velocity of -14,000 km/s
We thank the Keck Observatory staff and S. A. Stanford for their cooperation in the execution of this observation.
