Table 3.
Cosine model fit parameters in three elliptical annuli with increasing major axis distance, R, as described by Eq. (6).
| R | νsys | νcos | PAkin |
|---|---|---|---|
| (kpc) | (km s−1) | (km s−1) | (°) |
| R ≤ 43.8 | 1304.62 ± 3.81 | 4.70 ± 5.77 | 104.71 ± 70.92 |
| 43.8 < R ≤ 73.0 | 1306.99 ± 3.87 | 16.59 ± 6.27 | 115.21 ± 18.51 |
| R ≥ 73.0 | 1305.14 ± 4.06 | 26.76 ± 7.05 | 161.43 ± 10.64 |
Notes. The systemic velocity is constant as a function of the distance and in good agreement with the value from the literature. At large distance the cosine term Vcos increases. The kinematic position angle in the outermost bin, PAkin, is at 160°.
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