Open Access
Table A.1
Best-fit model parameters obtained for channel maps of the disc of MWC 480.
| MWC 480 (162.0 pc) | ||||||
|---|---|---|---|---|---|---|
| Attribute | Parameter | Unit | 12CO | 13CO | C18O | |
| i | [°] | −38.6 [−37.0] | −37.3 [−37.0] | −36.1 [−37.0] | ||
| Orientation | PA | [°] | 327.9 [328.2] | 327.6 [327.6] | 327.6 [327.6] | |
| xc | [au] | −0.9 [−3.2] | −3.7 [−0.6] | −3.6 [2.3] | ||
| yc | [au] | −1.8 [0.7] | −1.9 [−1.0] | 0.1 [−3.2] | ||
| Velocity | M* | [M⊙] | 1.97 [2.07] | 2.08 [2.12] | 2.22 [2.16] | |
| υsys | [km s−1] | 5.10 [5.10] | 5.09 [5.10] | 5.09 [5.10] | ||
| z0 | [au] | 52.7 | 12.4 | 5.4 | ||
| Upper surface | p | [–] | 1.65 | 1.51 | 2.29 | |
| Rt | [au] | 108.6 | 307.7 | 82.9 | ||
| q | [–] | 0.55 | 1.32 | 1.22 | ||
| z0 | [au] | 14.2 | 8.9 | -- | ||
| Lower surface | p | [–] | 1.11 | 1.08 | -- | |
| Rt | [au] | 803.9 | 510.9 | -- | ||
| q | [–] | 2.86 | 3.60 | -- | ||
| I0 | [Jy px−1] | 2.61 | 4.08 | 0.23 | ||
| Peak intensity | p | [–] | −2.66 | −2.29 | −0.63 | |
| q | [–] | 2.16 | 2.03 | 0.56 | ||
| Lw | [km s−1] | 0.32 | 0.16 | 0.29 | ||
| Line width | p | [–] | −0.29 | −0.33 | −0.84 | |
| q | [–] | −0.36 | −0.45 | −0.11 | ||
| Line slope | Ls | [–] | 1.68 | 1.50 | 1.58 | |
| p | [–] | 0.31 | 0.16 | 0.09 | ||
Notes. Parameters in brackets result from fixing inclination to the value found for the millimetre continuum in Liu et al. (2019).
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