Spectroscopic classification of the transient ZTF19actabny/AT2019vas
ATel #13570; Monika Soraisam (NCSA/UIUC), Chien-Hsiu Lee (NSF OIR Lab), Gautham Narayan (UIUC), Thomas Matheson, Abhijit Saha (NSF OIR Lab), Arizona-NOAO Temporal Analysis and Response to Events System (ANTARES) team, Thomas G. Brink, Kishore C. Patra, Thomas de Jaeger, WeiKang Zheng, Benjamin E. Stahl, Alexei V. Filippenko (UC Berkeley), Daniel Muthukrishna (University of Cambridge)
on 20 Mar 2020; 18:19 UT
Credential Certification: Monika Soraisam (soraisam@illinois.edu)
Subjects: Optical, Supernovae, Transient
We report the spectroscopic classification of ZTF19actabny flagged by a custom filter on the ANTARES alert-broker (https://antares.noao.edu/) as a promising stellar explosive event from the public alert stream of the ZTF survey. The optical spectrum was obtained on 2020 March 2 UT with the Kast double spectrograph on the Shane 3 m telescope at Lick Observatory.
Name | IAU Name | RA (J2000) | Dec (J2000) | z | Type | Phase | Notes
ZTF19actabny | AT2019vas | 17:13:55.47 | +21:40:04.37 | 0.159 | IIn | post-max. (>40 days) | (1), (2)
Note: (1) Classification was performed with DASH (Muthukrishna et al. 2019, arXiv:1903.02557). The light curve of the source can be accessed at https://antares.noao.edu/alerts/locus/8816855.
(2) There is no apparent host for the supernova in the SDSS and PS1 images and at its estimated redshift, its apparent magnitude corresponds to M ~ -21mag.
