Table 4.
Local densities M⊙/pc3.
| Component | Age (Gyr) | ρ⊙ (D) | ϵ(D) | ρ⊙ (S) | ϵ (S) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thin disc 1 | 0–0.10 |
 |
0.0140 |
 |
0.0140 | |||||
| 2 | 0.10–1 |
 |
0.0210 |
 |
0.0209 | |||||
| 3 | 1–2 |
 |
0.0299 |
 |
0.0298 | |||||
| 4 | 2–3 |
 |
0.0451 |
 |
0.0448 | |||||
| 5 | 3–5 |
 |
0.0577 |
 |
0.0574 | |||||
| 6 | 5–7 |
 |
0.0655 |
 |
0.0652 | |||||
| 7 | 7–10 |
 |
0.0660 |
 |
0.0657 | |||||
| Brown and white dwarfs* | 0.0071 | 0.0071 | ||||||||
| Total thin disc | 0–10 |
 |
 |
|||||||
| Young thick disc* | 10 | 0.0036 | 0.0036 | |||||||
| Old thick disc* | 12 | 0.0005 | 0.0005 | |||||||
| Stellar halo* | 14 | 4.1e-05 | 4.1e-05 | |||||||
| Total stellar component |
 |
 |
||||||||
| ISM* | 0.05 | 0.05 | ||||||||
| Dark matter halo |
 |
 |
||||||||
| Total |
 |
 |
||||||||
Notes. Contribution to the total dynamical mass of the population components from BGM Std performed with the obtained most probable values (MP variant). Columns with (D) present the values obtained when using the Drimmel extinction map while columns with (S) present the values obtained when using the Stilism map. Additionally, we present the eccentricities of the Einasto density profiles for the age sub-populations of the thin disc component. The components marked with an asterisk are fixed and not derived in this paper.
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