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Table 3.
Dependence of magnetic field strength on star formation rate 
.
| Name | n (6 cm) | j (6 cm) | n (20 cm) | j (20 cm) |
|---|---|---|---|---|
| Diffusion | ||||
| NGC 6946 | −0.93 | 0.92 | −0.70 | 0.61 |
| M 51 | −0.53 | 0.39 | −0.54 | 0.40 |
| N4535 VIVA | −0.50 | 0.35 | −0.54 | 0.40 |
| Streaming | ||||
| NGC 4321 disk | −0.12 | 0.08 | −0.04 | 0.03 |
| NGC 4303 | −0.33 | 0.22 | −0.08 | 0.05 |
| NGC 4254 | −0.28 | 0.19 | −0.17 | 0.11 |
| NGC 4501 | −0.17 | 0.11 | −0.10 | 0.07 |
| NGC 4654 | −0.76 | 0.51 | −0.57 | 0.38 |
Notes. The relation between the diffusion lengthscale and the star formation rate is 
. In addition, we use 
with m = 0.24.
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