Spectroscopic Classification of AT2022crr with SOAR/Goodman
ATel #15242; K. W. Davis, R. J. Foley (UC Santa Cruz), G. Dimitriadis (TCD)
on 25 Feb 2022; 18:24 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ryan Foley (foley@ucsc.edu)
Subjects: Optical, Supernovae
We report the classification of AT2022crr from spectroscopic observations with the Goodman spectrograph on the Southern Astrophysical Research (SOAR) telescope, made on 2022 Feb 24 UT. The target was supplied by ATLAS. The classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
ATLAS22gcd | AT2022crr | 15:24:49.135 | -21:23:21.75 | 0.0188 | Ic-BL | 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) A previous near-infrared spectrum of AT2022crr showed a nearly featureless spectrum with a peak near 1.1 microns (Tinyanont et al., 2022, ATel #15234), consistent with our optical classification. We measure a Si II 6355 velocity of -20,800 km/s and Fe II 5169 velocity of -22,300 km/s.
