Spectroscopic Classifications of Astrophysical Transients with Keck I + LRIS
ATel #16733; K. W. Davis, R. J. Foley (UCSC)
on 24 Jul 2024; 22:36 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ryan Foley (foley@ucsc.edu)
Subjects: Optical, Supernovae
We report the following the classifications of astrophysical transients from spectroscopic observations with the LRIS spectrograph on the Keck I telescope, made on 2024 July 08 UT. The targets were supplied by ALeRCE (selected from the ZTF data stream), PSST, and YSE, 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
ZTF24aaitxdn | AT2024fzj | 17:02:25.394 | +31:13:07.02 | 0.034 | IIb | +60d |
ZTF24aakzmiu | AT2024hkc | 17:23:55.283 | +30:47:39.06 | 0.046 | Ic | +80d |
PS24cfn | AT2024hzr | 16:38:05.534 | +39:30:22.23 | 0.037 | II | post-peak |
PS24fvy | AT2024oam | 00:11:09.740 | +18:16:57.48 | 0.11 | Ia | peak | (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 -12,000 km/s.
