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Table 1.
Scale lengths (a) and heights (h), mass (M), number of particles (N), and particle mass (m) for the disc components of the MW and the satellite, considering a cut-off in radius at ten times the scale length.
| a | h | M | N | m | |
|---|---|---|---|---|---|
| MW: thin disc | 4.80 | 0.25 | 16.21 | 1 × 107 | 1.6 × 10−6 |
| MW: intermediate disc | 2.00 | 0.60 | 11.69 | 6 × 106 | 1.9 × 10−6 |
| MW: thick disc | 2.00 | 0.80 | 8.43 | 4 × 106 | 2.1 × 10−6 |
| MW: GC system | 2.00 | 0.80 | 6.5 × 10−2 | 100 | 6.5 × 10−4 |
| MW: dark halo | 20.00 | – | 160.00 | 5 × 106 | 3.2 × 10−5 |
| Satellite: thin disc | 1.52 | 0.08 | 1.69 | 1 × 106 | 1.6 × 10−6 |
| Satellite: intermediate disc | 0.63 | 0.19 | 1.17 | 6 × 105 | 1.9 × 10−6 |
| Satellite: thick disc | 0.63 | 0.25 | 0.84 | 4 × 105 | 2.1 × 10−6 |
| Satellite: GC system | 0.63 | 0.25 | 6.5 × 10−3 | 10 | 6.5 × 10−4 |
| Satellite: dark halo | 6.32 | – | 16.00 | 5 × 105 | 3.2 × 10−5 |
Notes. Masses are in units of 2.3 × 109 M⊙ and distances are in kiloparsecs.
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