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Table 4.
Regions of M 101 used for the spectral analysis.
| Region name | Region description |
|---|---|
| C | Central 4′ (8.6 kpc) of M 101 |
| P1 | Southern polarised arm |
| P2 | South-eastern polarised feature |
| I | North-eastern polarised inter-arm region |
| S1 | Western spiral arm |
| S2X | Eastern spiral arm |
| V | ‘void’ – area between the centre and S1 |
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