Table 7.
Magnetic field strengths and SFR surface density for nearby galaxies.
| Galaxy | Btot | Bord | Btur | Bord/Btur | ΣSFR | ldif |
|---|---|---|---|---|---|---|
| (μG) | (μG) | (μG) | – | (M⊙ Gyr−1 pc−2) | (pc) | |
| IC 342 | 10.2 ± 1.3 | 1.87 ± 0.65 | 10.0 ± 1.3 | 0.19 ± 0.07 | 3.5 ± 0.3 | 200 ± 10 |
| NGC 4214 | 3.7 ± 0.5 | 0.68 ± 0.27 | 3.6 ± 0.5 | 0.19 ± 0.08 | 4.9 (9) ± 1.5 | 180 |
| M 31 (1) | 6.6 ± 0.3 | 4.3 ± 0.3 | 5.0 ± 0.2 | 0.86 ± 0.07 | 0.6 ± 0.1 | 730 ± 90 |
| M 33 (1) | 8.1 ± 0.5 | 2.8 ± 0.3 | 7.6 ± 0.5 | 0.37 ± 0.05 | 3.0 ± 0.6 | < 400 |
| NGC 6946 (2) | 16.0 ± 1.5 | 9.9 ± 2.1 | 12.6 ± 2.7 | 0.79 ± 0.24 | 7.2 ± 1.8 | 1700 ± 200 |
| LMC | 10.1 ± 1.7 (3) | 1.1 (3) | 10.0 ± 1.7 (3) | 0.11 ± 0.01 | 2.6 (4) | 200 ± 90 (5) |
| M 51 | 15 ± 2.2 (6) | 7.9 ± 1.1 (6) | 12.7 ± 1.9 (6) | 0.62 ± 0.26 (6) | 12 (7) ± 1.8 | > 500 ± 200 (8) |
Notes. Total (Btot), ordered (Bord), and turbulent (Btur) magnetic field strengths are presented for a sample of nearby galaxies along with the SFR surface density (ΣSFR) and the diffusion length of CREs (ldif).
(1)Tabatabaei et al. (2013a), (2)Tabatabaei et al. (2013b), (3)Hassani et al. (2022), (4)Whitney et al. (2008), (5)Hughes et al. (2006), (6)Fletcher et al. (2011), (7)Leroy et al. (2008), (8)Dumas et al. (2011), (9)Calzetti et al. (2010).
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