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Table 4.
Priors used for MCMC accretion disk plus Gaussian model fitting.
| Parameter | Prior range |
|---|---|
| Emissivity index (q) | 2–3 |
| Line broadening (σ) | 500–4500 km s−1 |
| Inclination (i) | 0–90 degrees |
| Eccentricity (e) | 0–1 |
| Orientation angle (ϕ0) | 0–360 degrees |
| Inner radius (r1) | 100–550 Rg |
| Outer radius (r2) | 750–4750 Rg |
| A | 0.95–1.05 |
| B | 0–0.2 |
| Amplitude | 0–0.125 |
| FWHM (narrow) | 0–3000 km s−1 |
| Velocity shift (narrow) | −3000–1000 km s−1 |
| FWHM (broad) | 22 500–40 000 km s−1 |
| Velocity shift (broad) | –4000–4000 km s−1 |
Notes. Values below the horizontal line pertain to the Gaussian component. An exploratory study using a grid of models covering a wide parameter range was used to determine the range of some priors.
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