Table 3
Free parameters constrained with the grid-search and MCMC methods while modeling the total intensity data.
| Fixed parameters from Perrot et al. (2016) | Fixed parameters from DPI model | |||||||
|---|---|---|---|---|---|---|---|---|
| Grid-search (206 400 models) | MCMC (102 144 models) | MCMC (24 000 models) | ||||||
| Parameters | Range | Number | Result | Prior | Initial value | Result | Initial value | Result |
| of values | ||||||||
| gtotal_int | [0, 0.99] | 100 | 0.46 ± 0.14 | [0, 0.99] | 0.48 | 0.42 |
0.3 | 0.23 |
 |
[90, 300] | 43 | 230.2 ± 8.3 | [90, 300] | 230 | 234.0 |
240 | 235.0 |
 |
[10, 200] | 48 | 41.5 ± 11.8 | [10, 200] | 38 | 36.5 |
150 | 57.9 |
| χ2 | 1.9 | 1.9 | 3.7 | |||||
Notes. The second column assumes fixed parameters from (Perrot et al. 2016): r0 = 45 au, i = 57°, αin = 20, αout = −20, and the third column assumes the values obtained for the MCMC best-fit DPI model (Table 2): r0 = 44 au, i = 56.3°, αin = 11.1, αout = −4.2.
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