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Home All issues Volume 705 (January 2026) A&A, 705 (2026) A250 Full HTML
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Table 2.

Broadband polarimetry of new TDEs presented in this work.

TDE, Phase q ± σq u ± σu (q ± σq)corr (u ± σu)corr (P ± σP)corr (θ ± σθ)corr
band (days) (%) (%) (%) (%) (%) (°)
AT 2018hyz
V +9 −1.03±0.13 −1.53±0.13 −1.31±0.66 −1.93±0.95 2.21±0.87 −62.0±10.7
AT 2019lwu
B +51 0.02±0.30 −0.37±0.15 0.14±0.84 −0.77±0.43 0.31±0.27 −40.0±16.4
V 0.05±0.18 −0.43±0.21 −0.37±0.74 −2.70±0.93 1.45±0.48 −48.9±9.2
AT 2020zso
B −24 1.69±0.10 −0.07±0.10 2.03±0.20 0.88±0.16 2.21±0.20 11.7±2.5
−17 2.17±0.45 1.40±0.50 2.30±0.55 2.59±0.62 3.41±0.59 24.2±4.9
−9 1.18±0.10 −0.83±0.13 0.92±0.12 −0.23±0.15 0.94±0.12 −7.1±3.7
−1 1.45±0.09 −0.62±0.09 1.27±0.11 0.08±0.11 1.27±0.11 1.8±2.5
V −24 1.29±0.10 −0.42±0.10 2.53±0.45 0.52±0.25 2.57±0.45 5.8±4.9
−17 1.55±0.22 −0.27±0.22 4.57±0.51 −1.07±0.36 4.68±0.50 −6.6±3.1
−9 1.19±0.07 −0.51±0.08 1.27±0.11 −0.10±0.10 1.27±0.11 −2.3±2.4
−1 1.33±0.08 −0.65±0.09 1.51±0.12 −0.16±0.12 1.51±0.12 −3.0±2.3
R −24 0.93±0.09 −0.42±0.09 2.19±0.64 0.70±0.36 2.26±0.62 8.8±7.8
−17 1.16±0.23 −0.40±0.24 3.34±0.56 −0.84±0.43 3.41±0.56 −7.1±4.6
−9 0.97±0.09 −0.68±0.09 1.81±0.16 −0.98±0.15 2.05±0.16 −14.3±2.2
−1 1.04±0.08 −0.73±0.08 1.24±0.14 −0.20±0.13 1.25±0.14 −4.5±3.2
AT 2021blz
B +5 0.61±0.08 0.27±0.08 0.80±0.13 0.19±0.12 0.81±0.13 6.9±4.4
+16 0.47±0.07 0.07±0.08 0.66±0.11 −0.07±0.11 0.65±0.11 −3.0±4.8
V +5 0.51±0.07 0.21±0.07 1.37±0.21 0.48±0.19 1.44±0.21 9.7±4.1
+16 0.37±0.09 0.30±0.09 0.79±0.17 0.57±0.17 0.96±0.17 18.1±5.1
R +16 0.13±0.06 0.06±0.06 0.47±0.13 0.05±0.13 0.45±0.13 2.8±8.2
Vs +10 0.55±0.02 −0.06±0.02 1.55±0.09 –0.17±0.09 1.50±0.09 −3.16±1.7
+32 0.31±0.02 −0.07±0.02 1.44±0.15 −0.31±0.15 1.34±0.14 −6.07±2.9
AT 2022bdw
B +267 −0.31±0.17 0.09±0.16 −0.11±0.17 0.19±0.16 0.16±0.17 59.9±22.1
V +267 −0.31±0.12 −0.12±0.12 −0.14±0.13 −0.10±0.13 0.13±0.13 −71.8±20.8
I +267 −0.18±0.10 0.06±0.10 −0.05±0.10 0.06±0.10 0.05±0.10 65.6±37.5
Vs +2 0.04±0.02 −0.03±0.02 0.50±0.08 −0.03±0.08 0.49±0.08 −1.70±4.4
AT 2022dsb
B +115 −0.07±0.14 −0.21±0.14 −0.12±0.14 −0.08±0.14 0.10±0.14 −73.9±28.5
V +115 −0.06±0.10 −0.20±0.11 −0.08±0.10 -0.05±0.11 0.06±0.10 −75.2±1.2
R 0.05±0.09 −0.14±0.09 0.05±0.09 0.04±0.09 0.04±0.09 19.2±37.2
I +115 −0.12±0.08 −0.18±0.08 −0.08±0.09 −0.03±0.09 0.05±0.09 −78.4±30.1
Vs +2 0.09±0.01 −0.80±0.01 0.13±0.03 −1.23±0.03 1.24±0.03 −42.0±0.8
+23 −0.01±0.02 −0.15±0.02 −0.08±0.04 0.01±0.04 0.07±0.04 87.4±15.7
AT 2022exr
V +169 0.04±0.08 −0.06±0.08 0.13±0.34 −0.01±0.33 0.07±0.34 −2.5±73.7
AT 2022hvp
V +16 0.19±32 1.13±0.85 0.24±0.41 1.45±1.09 1.40±1.08 40.2±21.0
AT 2023mhs
V +4 −0.53±0.16 0.48±0.16 −0.64±0.19 0.58±0.19 0.84±0.19 68.9±6.4
R +4 −0.41±0.15 0.30±0.14 −0.52±0.20 0.38±0.18 0.62±0.19 71.9±8.6
Vs +9 −0.81±0.01 0.44±0.02 −0.98±0.02 0.54±0.02 1.11±0.02 75.6±0.5

Notes. The first column gives the TDE name and bands (either VLT/FORS2 or NOT/ALFOSC) in which broadband polarimetry data were obtained, with multiple rows per band indicating multiple epochs of observations. The remaining columns contain the phase with respect to optical peak light (column 2), the values plus uncertainties of the normalised q, u Stokes parameters (columns 3,4), the q, u Stokes parameters corrected for the ISP and host galaxy light (columns 5,6), and the polarisation degree (column 7) and polarisation angle (column 8) after those same corrections. We also provide the synthetic V-band (Vs) polarisation degree derived from the polarisation spectrum for those TDEs that have spectropolarimetry. *An asterisk in the first column denotes datasets that were ignored in our analysis, as they were strongly affected by moonlight.

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