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Table 1
Fit results.
Parameter | Best-fit value ± error | ||||
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Brγ rotation curve modeling1 | Brγ spectroastrometric modeling | ||||
Fit-R 0 | Fit-R 1 | Fit-S 0 | Fit-S 1 | ||
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θLON [°] | 215.0 ± 0.5 | 2172 | 217 [±4] 3 | 217 [±4] 3 | |
xc [″] | −0.013 ± 0.02 | 0.042 | 0.04 ± 0.04 | 0.04 ± 0.03 | |
yc [″] | 0.067 ± 0.02 | 0.082 | 0.08 ± 0.034 | 0.08 ± 0.024 | |
log 10(MUDM/M⊙) | 7.22 ± 0.05 | 7.19 | 6.93 ± 0.07 | 6.88 ± 0.07 | |
log 10(M/L) | −0.74 ± 0.01 | −0.737 | −11.2 ± 0.05 | −0.742 | |
i [°] | 61 [±1] 3 | 61 [±1] 3 | 61 [±1] 3 | 61 [±1] 3 | |
Vsys [km s-1] | 389.3 ± 0.8 | 393.6 | 391 ± 16 | 390 ± 9 | |
1.80 (309/172) | 3.69 (645.4/175) | 0.25 (0.76/3) | 0.3 (1.4/4) |
Notes.
(1)
The best-fit parameter confidence intervals are computed only for the interesting parameters as explained in the text (see also Avni 1976).
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