Table 3
Mimicked α variation and χ2 values for simulated spectra with an underlying velocity field.
| vp = 0 km s-1 | vp = 5 km s-1 | vp = 10 km s-1 | vp = 15 km s-1 | vp = 20 km s-1 | ||||||
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| #c | Δα/α [10-6] | χ 2 | Δα/α [10-6] | χ 2 | Δα/α [10-6] | χ 2 | Δα/α [10-6] | χ 2 | Δα/α [10-6] | χ 2 |
|
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| 1 | −0.22 ± 1.50 | 1.0 | −3.11 ± 1.93 | 1.0 | −8.62 ± 2.26 | 1.1 | −9.28 ± 3.00 | 1.4 | −8.79 ± 4.42 | 1.8 |
| 2 | −0.46 ± 1.29 | 1.0 | −1.93 ± 2.33 | 1.0 | 0.05 ± 1.17 | 1.0 | 0.20 ± 2.32 | 1.0 | −0.49 ± 3.10 | 1.0 |
| 3 | 0.14 ± 1.96 | 1.0 | 0.19 ± 1.89 | 1.0 | 0.49 ± 1.74 | 1.0 | 0.04 ± 2.32 | 1.0 | −0.56 ± 2.92 | 1.0 |
| 4 | 1.19 ± 3.08 | 1.0 | 0.36 ± 2.30 | 1.0 | 0.52 ± 2.17 | 1.0 | 0.05 ± 2.50 | 1.0 | −0.50 ± 2.95 | 1.0 |
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| 1 | −0.04 ± 0.31 | 1.0 | −2.57 ± 0.42 | 1.0 | −14.26 ± 1.66 | 1.4 | −26.38 ± 2.24 | 5.6 | −26.11 ± 1.98 | 15.3 |
| 2 | −0.11 ± 0.33 | 1.0 | −0.49 ± 1.14 | 1.0 | 0.31 ± 0.37 | 1.0 | 0.54 ± 0.42 | 1.1 | 0.31 ± 0.63 | 1.6 |
| 3 | 0.02 ± 0.63 | 1.0 | −0.13 ± 0.76 | 1.0 | −0.12 ± 01.01 | 1.0 | 0.02 ± 0.42 | 1.0 | 0.12 ± 0.64 | 1.0 |
| 4 | 0.05 ± 0.53 | 1.0 | 0.06 ± 0.80 | 1.0 | 0.00 ± 0.54 | 1.0 | 0.02 ± 0.42 | 1.0 | 0.10 ± 0.68 | 1.0 |
Notes.The first four rows show the results for N1 = 13.0 and the last four rows for N2 = 13.5. Simulated spectra with peak gas velocities from vp = 05 km s-1 to vp = 20 km s-1 were fitted with up to four components. Results are averaged over 100 fits with random noise. Errors represent the spread of the values.
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