Spectroscopic Classifications of AT2024adv and AT2024aju with SOAR/Goodman
ATel #16416; K. W. Davis, R. J. Foley (UCSC)
on 24 Jan 2024; 21:23 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ryan Foley (foley@ucsc.edu)
Subjects: Optical, Supernovae
We report the following classifications of AT2024adv and AT2024aju from spectroscopic observations with the Goodman spectrograph on the SOAR telescope using the AEON queue, made on 2024 Jan 23 UT. The targets were supplied by ATLAS 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
ATLAS24auv | AT2024adv | 12:52:58.735 | +07:30:22.63 | 0.053 | Ia-91T | +2d | (1)
ATLAS24bah | AT2024aju | 02:58:49.986 | -25:34:24.73 | 0.037 | II | pre-peak | (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.
(1) We measure a Si II 6355 absorption velocity of -10,400 km/s.
(2) We find a blue continuum with a shallow P-Cygni feature consistent with H-alpha. We measure a H-alpha absorption velocity of -3100 km/s.
We thank the SOAR observatory staff for executing this observation.
