Spectroscopic Classification of Astrophysical Transients with the Lick Shane Telescope
ATel #16895; K. W. Davis, K. Kianpoor, R. J. Foley (UCSC)
on 5 Nov 2024; 00:35 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ryan Foley (foley@ucsc.edu)
Subjects: Optical, Supernovae
We report the classifications of astrophysical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope obtained on 2024 November 04 UT. The targets were supplied by YSE and ZTF, and identified using the target management platform YSE-PZ (Coulter et al., 2023, PASP, 135, 4501). The classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
PS24jxp | AT2024ymp | 09:28:16.697 | +51:56:28.14 | 0.075 | Ia | +25d | (1)
ZTF24abnyruv | AT2024yzz | 22:43:03.925 | +23:51:25.04 | 0.043 | Ia | +0d | (2)
PS24kqf | AT2024aafv | 00:55:06.992 | -15:15:15.00 | 0.056 | SN | | (3)
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) The spectrum has a relatively low signal-to-noise ratio, but is reasonably well matched by SNe Ia with a phase of 20-30 days after peak.
(2) We measure a Si II 6355 velocity of -10,300 km/s.
(3) The spectrum is a blue featureless continuum. The SN appears to share a host galaxy with SN 2023vuc, and thus we adopt the redshift of z=0.056 (Saccardi et al., 2023, TNSCR, 2725).
