Spectroscopic Classification of Transients with SOAR/Goodman
ATel #16366; K. W. Davis, R. J. Foley (UCSC)
on 7 Dec 2023; 01:12 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 the following astrophysical transients from spectroscopic observations with the Goodman spectrograph on the SOAR telescope using the AEON queue, made on 2023 Nov 22 and 2023 Nov 23 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 classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
PS23jtf | AT2023vrt | 02:28:20.090 | -22:14:51.65 | 0.06 | Ia | +15d | (1)
ZTF23abprvfl | AT2023xhk | 03:20:19.077 | -01:37:24.46 | 0.06 | Ia-91T | pre-peak | (2)
PS23klg | AT2023xim | 23:53:59.997 | -22:33:51.31 | 0.061 | Ia | +4d | (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) We measure a Si II 6355 absorption velocity of -10,600 km/s.
(2) We measure a Si II 6355 absorption velocity of -9600 km/s.
(3) We measure a Si II 6355 absorption velocity of -10,900 km/s.
We thank the SOAR observatory staff for executing this observation.
