Spectroscopic Classification of an optical transient with the Lick Shane telescope
ATel #15999; K. Taggart, C. Rojas-Bravo, R. J. Foley (UCSC)
on 21 Apr 2023; 01:44 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Kirsty Taggart (k.taggart@ucsc.edu)
Subjects: Optical, Supernovae
We report the following classification from spectroscopic observations with the Kast spectrograph on the Lick Shane telescope. The target was supplied by ALeRCE using ZTF data. Observations were made on 2023 Apr 12 UT. The classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
ZTF23aaecgwh | 2023eeb | 16:00:37.313 | +19:42:52.22 | 0.0415 | Ic | +4 | (1)
Notes:
The redshift is determined from the host galaxy emission lines in the supernova spectrum.
(1) By masking the host emission lines, and restricting the phase we find reasonable fits to a SN Ic. The redshift derived from the SNID template fits and the transients' close proximity to the dwarf galaxy SDSS J160037.30+194252.6 (z = 0.0415) favor the transient being associated with this host galaxy as opposed to the nearby bright galaxy IC1156 (z = 0.0312). The peak absolute r-band magnitude of -17.9 mag is also consistent with a stripped-envelope SN.
