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Table 1
Mass distribution parameters for the disc components of M 31 (see Sect. 3.2).
| Component | a c | ϵ | N | d N | ρ c | M |
| [kpc] | [M⊙ pc-3] | [109M⊙] | ||||
|
|
||||||
| Main stellar disc | 10.67 | 0.17 | 1.2 | 3.273 | 1.307 × 10-2 | 56 |
| Young stellar disc | 11.83 | 0.01 | 0.2 | 0.316 | 1.179 × 10-2 | 1 |
| Cold gas disc | 11.83 | 0.01 | 0.2 | 0.316 | 2.946 × 10-2 | 2.5 |
| Warm gas disc | 11.83 | 0.03 | 0.2 | 0.316 | 1.375 × 10-2 | 3.5 |
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