TNS Classification Report No. 9085 [ 2021TNSCR.683....1P ]
Date Received (UTC): 2021-03-04 10:42:12 Sender: Ismael Perez-Fournon
Group: SGLF
I. Perez-Fournon, C. Jimenez Angel, F. Poidevin (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (Univ. of Geneva), S. Geier (GRANTECAN & IAC), Y. Shu (MPA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s a classification of object: AT 2021dxi
Type: CV
Remarks: AT 2021dxi (ZTF21aanehlz, ATLAS21gxx) has been recently reported to TNS by ZTF and ATLAS as a possible supernova. However, the 5 mag brightening (in ZTF g-band) in two days and the association with a faint, blue, point-like source in the DESI Legacy Imaging Surveys (with magnitudes g=21.24, r=20.97, z=21.6) suggested that it is a bright CV as confirmed by our LT SPRAT spectroscopy. The brightest ZTF observed magnitudes are g = 13.308 +/- 0.024 on 2021-02-26 12:11:19 and r = 13.584 +/- 0.017 on 2021-02-26 11:44:54. After correction for galactic extinction, Ag = 0.534 and Ar = 0.369, the corrected brightest magnitudes are g = 12.774 and r = 13.215. 2020dxi is one of the brightest CVs discovered by ZTF. Photometric data were provided by the Zwicky Transient Facility (https://www.ztf.caltech.edu) and processed through the Lasair (https://lasair.roe.ac.uk), ALeRCE (https://alerce.online), ANTARES (https://antares.noirlab.edu), Fink (https://fink-broker.org), and MARS (https://mars.lco.global) brokers and by the Asteroid Terrestrial-impact Last Alert System (ATLAS, Tonry et al. 2018).
The following Classification spectrum was provided:
Obsdate: 2021-03-03 04:24:24
Instrument: SPRAT
Telescope: Liverpool Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2021dxi
Date Received (UTC): 2021-03-04 10:42:12 Sender: Ismael Perez-Fournon
Group: SGLF
I. Perez-Fournon, C. Jimenez Angel, F. Poidevin (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (Univ. of Geneva), S. Geier (GRANTECAN & IAC), Y. Shu (MPA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s a classification of object: AT 2021dxi
Type: CV
Remarks: AT 2021dxi (ZTF21aanehlz, ATLAS21gxx) has been recently reported to TNS by ZTF and ATLAS as a possible supernova. However, the 5 mag brightening (in ZTF g-band) in two days and the association with a faint, blue, point-like source in the DESI Legacy Imaging Surveys (with magnitudes g=21.24, r=20.97, z=21.6) suggested that it is a bright CV as confirmed by our LT SPRAT spectroscopy. The brightest ZTF observed magnitudes are g = 13.308 +/- 0.024 on 2021-02-26 12:11:19 and r = 13.584 +/- 0.017 on 2021-02-26 11:44:54. After correction for galactic extinction, Ag = 0.534 and Ar = 0.369, the corrected brightest magnitudes are g = 12.774 and r = 13.215. 2020dxi is one of the brightest CVs discovered by ZTF. Photometric data were provided by the Zwicky Transient Facility (https://www.ztf.caltech.edu) and processed through the Lasair (https://lasair.roe.ac.uk), ALeRCE (https://alerce.online), ANTARES (https://antares.noirlab.edu), Fink (https://fink-broker.org), and MARS (https://mars.lco.global) brokers and by the Asteroid Terrestrial-impact Last Alert System (ATLAS, Tonry et al. 2018).
The following Classification spectrum was provided:
Obsdate: 2021-03-03 04:24:24
Instrument: SPRAT
Telescope: Liverpool Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2021dxi