TNS Classification Report No. 22993 [ 2026TNSCR.691....1W ]
Date Received (UTC): 2026-02-17 20:43:22 Sender: Jacob Wise
Group: ZTF
Jacob Wise (LJMU), Wynn Jacobson-Galan (Caltech), Daniel Perley (LJMU), Anna Y. Q. Ho (Cornell), Zoe McGrath (LJMU), Aleksandra Bochenek (LJMU), K-Ryan Hinds (Caltech) report/s a classification of object: AT 2026dbl
Type: OtherRedshift: 0.19
Remarks: Spectrum displays a blue, featureless continuum with narrow Mg II doublet absorption at a redshift of z = 0.190 ± 0.001. Liverpool Telescope IO:O photometry shows the transient to have exceptionally blue colours at peak (u - g ~ 0.6) and a fading lightcurve shortly after discovery. A definitive classification cannot be confirmed at this time. Observations detailed further in AstroNote 2026-36.
The following Classification spectrum was provided:
Obsdate: 2026-02-17 06:06:40
Instrument: LRIS
Telescope: Keck I 10m
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2026dbl
Date Received (UTC): 2026-02-17 20:43:22 Sender: Jacob Wise
Group: ZTF
Jacob Wise (LJMU), Wynn Jacobson-Galan (Caltech), Daniel Perley (LJMU), Anna Y. Q. Ho (Cornell), Zoe McGrath (LJMU), Aleksandra Bochenek (LJMU), K-Ryan Hinds (Caltech) report/s a classification of object: AT 2026dbl
Type: OtherRedshift: 0.19
Remarks: Spectrum displays a blue, featureless continuum with narrow Mg II doublet absorption at a redshift of z = 0.190 ± 0.001. Liverpool Telescope IO:O photometry shows the transient to have exceptionally blue colours at peak (u - g ~ 0.6) and a fading lightcurve shortly after discovery. A definitive classification cannot be confirmed at this time. Observations detailed further in AstroNote 2026-36.
The following Classification spectrum was provided:
Obsdate: 2026-02-17 06:06:40
Instrument: LRIS
Telescope: Keck I 10m
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2026dbl