Open Access
Table 2
Prior distribution for age model parameters.
| Parameter | Parametrization | Distribution | Units | Hyper-parameters |
|---|---|---|---|---|
| Central | Generalised gamma | Myr | location=μτ - στ, scale=στ, d = p+1, p = 1.19 | |
| τ | Central | Generalised gamma | Myr | Location=μτ - στ·f★, scale=στ·f★, d = p+1, p = 10 |
| Central | Truncated normal | Myr | Location=μτ, scale=στ | |
| κσ | Central | Exponential | km s−1 pc−1 | scale=0.01 |
| κν | Central | Gamma | km s−1 pc−1 | alpha=2, scale=1 |
| (Non-) central | Normal | km s−1 pc−1 | Location=κμ, scale=κσ | |
| κ | (Non-) central | StudentT | km s−1 pc−1 | location=κμ, scale=κσ, dof=κν |
| Central | Truncated normal | pc | Location=20, scale=5 | |
| σXYZ | Central | Gamma | pc | α=2.0, β=1/20 |
| Central | Exponential | pc | Scale=20 | |
| Central | Truncated normal | km s−1 | Location=0.5, scale=1.0 | |
| σUVW | Central | Gamma | km s−1 | α=2.0, β=1/0.5 |
| Central | Exponential | km s−1 | scale=0.5 |
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