Spectroscopic Classifications of Optical Transients with the Lick Shane telescope
ATel #16999; Ravjit Kaur, Kishore C. Patra, Ryan. J. Foley (UCSC)
on 28 Jan 2025; 00:45 UT
Credential Certification: Kishore Patra (kcpatra@ucsc.edu)
Subjects: Optical, Supernovae
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 Young Supernova Experiment and ZTF. All observations were made on 2025 Jan 27 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
PS25ea| AT2025sn | 14:06:20.333 | +48:40:16.22 | 0.066 | Ia | peak | (1)
ZTF25aaddfzb| AT2025acu | 10:33:26.150 | +01:50:28.82 | 0.029 | Ia | -6 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.
Notes:
(1) We measure an Si II 6355 velocity of -11,500 km/s.
(2) We measure an Si II 6355 velocity of -13,700 km/s.
