Table 1
Parameters used in the calculations.
| Model | m | ε | i | Ωp | β | |||||||||||
| km s-1 kpc-1 | ||||||||||||||||
|
|
||||||||||||||||
| fiducial | 2 | 0.1 | 20 | 20 | 10 | |||||||||||
| m3 | 3 | 0.1 | 20 | 20 | 10 | |||||||||||
| m4 | 4 | 0.1 | 20 | 20 | 10 | |||||||||||
| e0 | – | 0 | – | – | 10 | |||||||||||
| i10 | 2 | 0.1 | 10 | 20 | 10 | |||||||||||
| i30 | 2 | 0.1 | 30 | 20 | 10 | |||||||||||
| O2 | 2 | 0.1 | 20 | 40 | 10 | |||||||||||
| O05 | 2 | 0.1 | 20 | 10 | 10 | |||||||||||
| b1 | 2 | 0.1 | 20 | 20 | 1 | |||||||||||
| b03 | 2 | 0.1 | 20 | 20 | 0.3 | |||||||||||
| rf0* | 2 | 0.1 | 20 | 20 | 10 | |||||||||||
Notes. m is the number of arms of the gravitational potential perturbation, ε is the relative amplitude of the adopted perturbation, i is the pitch angle, Ωp is the pattern speed, β is the initial plasma beta. We note, that each model differs from the fiducial run by a single parameter, which is mentioned in the model name. All models are characterized by the purely toroidal initial magnetic field except the model marked by an astreisk (rf0*) where we impose the initial turbulent field (see Sect. 3.9).
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