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Table 3
Summary of the parameters characterising the main apertures of M 31.
| Region | RA centre | Dec centre | a | ϵ | M ⋆ | μ ⋆ | M dust | SFR | sSFR | NUV-r |
| hh:mm:ss | dd:mm:ss | kpc | 1010M⊙ | 108M⊙ kpc-2 | 106M⊙ | 10-2M⊙ yr-1 | 10-12 yr-1 | Mag | ||
|
|
||||||||||
| Global | 10:39:52.6 | 41:14:30.1 | 22.0 | 0.96 | 5.50 | 3.11 | 27.0 | 18.9 | 3.38 | 4.59 |
| Bulge | 10:41:10.2 | 41:16:18.4 | 1.0 | 0.00 | 0.81 | 25.1 | 0.11 | 0.18 | 0.27 | 6.11 |
| Inner disk | 10:44:22.8 | 41:20:00.2 | 8.7 | 0.98 | 2.00 | 4.23 | 3.95 | 2.30 | 1.20 | 5.38 |
| 10 kpc Ring | 10:45:37.6 | 41:19:39.6 | 11.5 | 0.96 | 0.96 | 1.66 | 12.8 | 9.06 | 9.55 | 4.11 |
| Outer disk | 10:39:52.6 | 41:14:30.1 | 22.0 | 0.96 | 1.07 | 1.58 | 12.5 | 1.18 | 1.07 | 3.85 |
| M 32 | 10:40:21.1 | 40:51:52.6 | 0.636 | 0.00 | 0.06 | 4.65 | 0.08 | 0.03 | 0.60 | 5.31 |
Notes. The semi-major axis a and apparent eccentricity describe the annuli on the plane of the sky. The other parameters are physical properties derived from an SED fit to the integrated fluxes inside these apertures.
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