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Table 2

Parameters for the synthetic polarization maps (other parameters as in Paper II).

Parameter Value Notes

Filament width 40 pc from λ20 cm
Base length 300 pc from λ20 cm
Disc field scaleheight 1.6 kpc thin radio disc
Disc field strength 4.4   μG from equipartition
Filament field strength 20   μG from equipartition
Electron density ne 2   cm-3 from Hα and soft X-ray
Electron scaleheight he 1400 pc from Hα
Cone opening angle 2β 45°
CRE scaleheight disc 800 pc thin radio disc
CRE scaleheight filament 200 pc filaments
Filament field scaleheight 600 pc from equipartition

Notes. CRE = cosmic-ray electrons.

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