TNS Classification Report No. 20309 [ 2025TNSCR.484....1O ]
Date Received (UTC): 2025-02-04 21:37:51 Sender: Andrea Reguitti
Group: Padova-Asiago
P. Ochner (UniPd), V. Andreoli (UniTn), A. Reguitti (INAF-OAPd), C. Balcon (ISSP), A. Farina (UniPd) report/s a classification of object: AT 2025axj
Type: CV
Remarks: The low resolution spectrum shows a blue continuum with emissions of Hα (FWHM 800 km/s) and Hβ (FWHM 900 km/s) caused by the accretion disk. The other Balmer lines are present in absorption (white dwarf component) with a weak emission at the center of the peak (disk component). Our spectrum also shows He I (5875, 6678, 7065 Å) and He II (4686 Å) lines. These characteristics are typical of CV stars, and we propose to classify 2025axj as a CV star. Observations were performed during the QTech meeting.
The following Classification spectrum was provided:
Obsdate: 2025-02-04 19:10:34
Instrument: BC-Asi
Telescope: Asiago Galileo Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025axj
Date Received (UTC): 2025-02-04 21:37:51 Sender: Andrea Reguitti
Group: Padova-Asiago
P. Ochner (UniPd), V. Andreoli (UniTn), A. Reguitti (INAF-OAPd), C. Balcon (ISSP), A. Farina (UniPd) report/s a classification of object: AT 2025axj
Type: CV
Remarks: The low resolution spectrum shows a blue continuum with emissions of Hα (FWHM 800 km/s) and Hβ (FWHM 900 km/s) caused by the accretion disk. The other Balmer lines are present in absorption (white dwarf component) with a weak emission at the center of the peak (disk component). Our spectrum also shows He I (5875, 6678, 7065 Å) and He II (4686 Å) lines. These characteristics are typical of CV stars, and we propose to classify 2025axj as a CV star. Observations were performed during the QTech meeting.
The following Classification spectrum was provided:
Obsdate: 2025-02-04 19:10:34
Instrument: BC-Asi
Telescope: Asiago Galileo Telescope
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2025axj