Table 2.
Observed Faraday depolarization between 4.85 and 8.35 GHz (DPobs(4.85,8.35)), emission measures (EM), pathlength (L) through the disk and halo towards the indicated regions, average thermal electron densities (⟨ne⟩), and turbulent magnetic field strength along the line-of-sight (Bt, ∥) in different regions of NGC 4631.
| Central region | Disk (a) | Disk-halo interface | |
|---|---|---|---|
| DPobs(4.85,8.35) (b) | 0.4 | 0.5 | 0.8 |
| EM [pc cm−6] | 2220 | 480 | 100 |
| L [kpc] (c) | 29 | 24 | 20 |
| ⟨ne⟩ [cm−3] | 0.06−0.12 | 0.03−0.06 | 0.016−0.03 |
| Bt, ∥ [μG] | 9.3 | 6.4 | 5.7 |
| σRM [rad m2] | 300 | 255 | 132 |
| d/f [pc] | 4−15 | 28−112 | 46−160 |
Notes. Estimates for the RM dispersion (σRM) and the ratio between the size of the turbulent cells and the filling factor of the cells (d/f) are given in the last two rows.
Values obtained from Mora & Krause (2013).
Values obtained from Mora-Partiarroyo et al. (2019).
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