Table 4
Fitting results of the thin disc sub-populations in the Besançon model.
| Age range | t | h i | ρi(⊙ ) |
| (Gyr) | (Gyr) | (pc) | M⊙ pc-3 |
|
|
|||
| 0–0.15 | 0.075 | 32.5 | 0.0019 |
| 0.15–1 | 0.575 | 97.8 | 0.0066 |
| 1–2 | 1.5 | 120.0 | 0.0073 |
| 2–3 | 2.5 | 195.9 | 0.0043 |
| 3–5 | 4.0 | 273.5 | 0.0049 |
| 5–7 | 6.0 | 328.3 | 0.0030 |
| 7–10 | 8.5 | 370.9 | 0.0020 |
Notes. Column 1 lists the age range of each sub-population in the Besançon model. Column 2 is the simple arithmetic mean age in each bin. We fit the vertical profile of each sub-population via two parameters: scale height hi (Col. 3) and local density ρi(⊙ ) (Col. 4). The relationship of t to hi is determined by fitting a power-law function.
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