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Table 6
Parameters obtained for sim-2 and sim-3 with parameters dependent on age (expressions shown in Eqs. (9) to (15)).
| Parameter | Range | sim-2 | sim-3 |
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| aγwarp+ (pc kpc-1) | [0.0; 1.30] | 1.033 ± 0.221 | 0.993 ± 0.237 |
| bγwarp+ (pc kpc-1 Gyr-1) | [0.15; 0.75] | 0.357 ± 0.139 | 0.367 ± 0.133 |
| cγwarp+ (pc kpc-1 Gyr-2) | [0.02; 0.12] | 0.053 ± 0.024 | 0.056 ± 0.024 |
| aγwarp− (pc kpc-1) | [0.05; 0.40] | 0.062 ± 0.031 | 0.074 ± 0.039 |
| bγwarp− (pc kpc-1 Gyr-1) | [0.06; 0.26] | 0.082 ± 0.019 | 0.083 ± 0.019 |
| aRwarp (kpc) | [7000; 12 000] | 10 189 ± 395 | 10 510 ± 446 |
| bRwarp (kpc Gyr-1) | [100; 600] | 255 ± 74 | 301 ± 80 |
| aθwarp (rad) | [2.50; 3.50] | 3.382 ± 0.056 | 3.376 ± 0.058 |
| bθwarp (rad Gyr-1) | [0.03; 0.23] | 0.058 ± 0.012 | 0.055 ± 0.011 |
| aRflare (kpc) | [7000; 11 000] | 8024 ± 316 | 7992 ± 324 |
| bRflare (kpc Gyr-1) | [300; 1300] | 922 ± 193 | 929 ± 239 |
| aγflare (kpc-1) | [0.15; 0.65] | 0.359 ± 0.121 | 0.328 ± 0.117 |
| bγflare (kpc-1 Gyr-1) | [0.01; 0.16] | 0.051 ± 0.039 | 0.0601± 0.035 |
| Rdis (pc) | [12 000; 22 000] | 19 482 ± 1419 | 18 742 ± 1601 |
| hcut (pc) | [500; 1500] | 955 ± 316 | 1070 ± 274 |
| hra (pc) | [1500,3000] | 2357 ± 148 | 2436 ± 125 |
| hrb (pc Gyr-1) | [700; 2700] | 742 ± 114 | 743 ± 80 |
| hrc (pc Gyr-2) | [0.20; 0,80] | 0.397 ± 0.210 | 0.513 ± 0.191 |
| kp1 (pc) | [3500; 6500] | 3771 ± 292 | 3798± 277 |
| χ2 | – | 20.16 ± 0.12 | 20.24 ± 0.14 |
| Lr | – | –17 957.4 | –18 020.0 |
| BIC | – | 36 055.1 | 36 180.3 |
Notes. For sim-3, we have considered the ripples (see Sect. 5.5). The likelihood Lr and the Bayesian Information Criterion BIC are explained in Eq. (16) and in Sect. 5.2.
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