Open Access

Table D.1

Posterior distributions of the razor-thin disc models.

run rin (″) rout (″) x0 (″) y0 (″) PA (°) vLSR (m s−1) M* (M)
nwalkers = 200, nburnin = 5000, nsteps = 5000
Full disc

1 0.0 1.0 0.0089 ± 0.0002 0.0064 ± 0.0001 234.22 ± 0.03 6177.1 ± 0.8 1.582 ± 0.002
2 0.25 1.0 0.0072 ± 0.0003 0.0243 ± 0.0003 234.58 ± 0.03 6172.9 ± 0.8 1.570 ± 0.002

Inner disc

3 0.0 0.4 0.0116 ± 0.0002 0.0051 ± 0.0002 232.98 ± 0.07 6124.1 ± 2.3 1.626 ± 0.003
4 0.0 0.5 0.0106 ± 0.0002 0.0058 ± 0.0002 233.11 ± 0.05 6145.8 ± 1.6 1.642 ± 0.002

Outer disc

5 0.4 1.0 0.0066 ± 0.0004 0.0130 ± 0.0004 234.69 ± 0.04 6183.7 ± 0.9 1.570 ± 0.002
6 0.5 1.0 0.0061 ± 0.0005 0.0114 ± 0.0006 234.87 ± 0.04 6185.6 ± 1.0 1.541 ± 0.002

Annuli

7 0.2 0.4 0.0124 ± 0.0004 0.0282 ± 0.0005 233.57 ± 0.08 6095.8 ± 2.5 1.580 ± 0.003
8 0.4 0.6 0.0033 ± 0.0006 0.0141 ± 0.0006 233.67 ± 0.06 6179.9 ± 1.7 1.636 ± 0.003
9 0.6 0.8 0.0031 ± 0.0008 0.0245 ± 0.0008 235.60 ± 0.06 6169.4 ± 1.4 1.473 ± 0.003
10 0.8 1.0 0.0242 ± 0.0013 0.0020 ± 0.0012 235.33 ± 0.07 6194.9 ± 1.7 1.650 ± 0.004

Notes. The uncertainties represent the 16th to 84th percentiles about the median value.

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