Table 2.
Mid-plane densities ρt and velocity dispersions σt of baryonic matter components.
| Component | ρt (M⊙ pc−3) | σt (km s−1) |
|---|---|---|
| Molecular gas | 0.0104 ± 0.00312 | 3.7 ± 0.2 |
| Cold atomic gas | 0.0277 ± 0.00554 | 7.1 ± 0.5 |
| Warm atomic gas | 0.0073 ± 0.0007 | 22.1 ± 2.4 |
| Hot ionised gas | 0.0005 ± 0.00003 | 39.0 ± 4.0 |
| Giant stars | 0.0006 ± 0.00006 | 15.5 ± 1.6 |
| Stars, MV < 3 | 0.0018 ± 0.00018 | 7.5 ± 2.0 |
| Stars, 3 < MV < 4 | 0.0018 ± 0.00018 | 12.0 ± 2.4 |
| Stars, 4 < MV < 5 | 0.0029 ± 0.00029 | 18.0 ± 1.8 |
| Stars, 5 < MV < 8 | 0.0072 ± 0.00072 | 18.5 ± 1.9 |
| Stars, MV > 8 | 0.0216 ± 0.0028 | 18.5 ± 4.0 |
| White dwarfs | 0.0056 ± 0.0010 | 20.0 ± 5.0 |
| Brown dwarfs | 0.0015 ± 0.0005 | 20.0 ± 5.0 |
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