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Table 6
Parameter fit for a Hernquist halo.
| Parameter | Range | Range | Best | |
| Min | Max | |||
|
|
||||
| Halo: | ||||
| exponent dhern | 2.2 | 4.5 | 2.763 | |
| axis ratio q | 0.5 | 1.2 | 0.774 | |
| Rcore(pc) | 0. | 5000. | 2136. | |
| normalisation | 0. | 5. | 2.66 | |
|
|
||||
| Thick disc: | ||||
| IMF slope | –1. | 1. | –0.22 | |
| scale height (pc) | 400 | 1300 | 537.2 | |
| normalisation | 0. | 3. | 1.68 | |
| scale length (pc) | 1500 | 5000 | 2318 | |
| ξ (pc) | 100 | 1500 | 647 | |
| flare start radius (pc) | 7000 | 20 000 | 9308. | |
| flare slope (pc/kpc) | –0.3 | 0.3 | 0.22 | |
|
|
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| Lr | –63 872. | |||
| BIC | 127 850. | |||
Notes. The 2nd and 3rd columns give the range of values explored by the ABC-MCMC method. The 4th column indicates the best-fit parameters. BIC is −2 ∗ Lr + k ∗ ln(n), as explained in the text.
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