ZTF19abxnerq: a new nova in M31
ATel #13153; Monika Soraisam (NCSA/UIUC), Chien-Hsiu Lee (NOAO), Gautham Narayan (UIUC), Thomas Matheson (NOAO), Abhijit Saha (NOAO), Arizona-NOAO Temporal Analysis and Response to Events System (ANTARES) team
on 1 Oct 2019; 20:32 UT
Credential Certification: Monika Soraisam (soraisam@noao.edu)
Subjects: Optical, Cataclysmic Variable, Nova, Transient
We report the identification and spectral observation of a new nova in M31, hereby also termed as M31N 2019-09c, detected by the ZTF survey on 6 Sep 2019 (MJD 58732.466771). It was flagged by a filter on the ANTARES alert-broker (https://antares.noao.edu/) customized to find transients in M31 from the ZTF public alert stream.
Name | Alternative name | RA (J2000) | Dec (J2000) | First detection: MJD, mag | Decline rate | Light curve from ANTARES
ZTF19abxnerq | M31N 2019-09c | 00:40:40.02 | 40:40:12.22 | 58732.466771, R~19.7+/-0.12 | ~0.05 mag/day | https://antares.noao.edu/alerts/locus/5277540
We obtained Gemini GMOS spectrum (4x450sec exposures) of this nova on 29 Sep 2019 UT through the ToO program GN-2019B-Q-221 (PI: Lee, C.-H.). The spectrum clearly shows strong H-alpha with P Cygni profile, as well as hints of HeI emissions, suggesting that it is likely a nova.
