Table 1.
Properties of the magnetic maps of AD Leo.
| 2007.1 | 2008.1 | 2012.0 | 2016.2 | 2019.4 | 2019.9 | 2019.9 | 2020.1 | 2020.6 | 2022.9 | |
|---|---|---|---|---|---|---|---|---|---|---|
| VIS | VIS | VIS | VIS | NIR | NIR | VIS | NIR | NIR | NIR | |
| ⟨B⟩ [G] | 190.0 | 180.0 | 330.0 | 300.0 | 111.2 | 132.3 | 158.0 | 115.3 | 93.4 | 144.8 |
| Bmax [G] | 1300.0 | 1300.0 | 1180.0 | 950.0 | 481.2 | 764.0 | 577.2 | 555.1 | 434.3 | 399.5 |
| ⟨B2⟩ [×105 G2] | 0.61 | 0.61 | 1.20 | 1.00 | 0.19 | 0.32 | 0.36 | 0.22 | 0.14 | 0.25 |
| fpol [%] | 99.0 | 95.0 | 94.0 | 90.6 | 100.0 | 99.9 | 95.0 | 99.3 | 98.7 | 99.9 |
| ftor [%] | 1.0 | 5.0 | 6.0 | 9.4 | 0.0 | 0.1 | 5.0 | 0.7 | 1.3 | 0.1 |
| fdip [%] | 56.0 | 63.0 | 89.0 | 94.1 | 81.3 | 71.1 | 81.7 | 75.7 | 70.1 | 90.9 |
| fquad [%] | 12.0 | 9.0 | 4.4 | 2.0 | 14.9 | 19.0 | 14.6 | 17.7 | 21.2 | 7.4 |
| foct [%] | 5.0 | 3.0 | 1.3 | 1.1 | 2.8 | 6.2 | 2.7 | 4.4 | 5.9 | 1.1 |
| faxisym [%] | 97.0 | 88.0 | 92.6 | 97.2 | 99.8 | 94.5 | 77.0 | 85.8 | 58.3 | 97.9 |
| Obliquity [°] | 8.0 | 17.5 | 13.5 | 8.0 | 2.5 | 12.5 | 21.5 | 19.5 | 38.0 | 7.5 |
Notes. The magnetic maps data are from 2007.1 and 2008.1 (Morin et al. 2008), 2012.0 and 2016.2 (Lavail et al. 2018), 2019.4, 2019.9 (NIR and VIS), 2020.1, and 2020.6 (Bellotti et al. 2023), and 2022.9 (present work). The following quantities are listed: mean large-scale magnetic field strength (in absolute value), maximum large-scale magnetic field strength (in absolute value), the total magnetic energy, the contributions of the poloidal and toroidal magnetic energies to the total energy, the contributions of the dipolar, quadrupolar, and octupolar magnetic energies to the poloidal energy, the axisymmetric magnetic energy as a fraction of the total energy, and the tilt of the magnetic axis with respect to the rotation axis.
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