Open Access
Table 1
slinefit parameters.
| Parameter | Value | Description |
|---|---|---|
| dz | 0.002 | Range of redshifts to explore around the input value |
| delta_z | 0.5 | Step in the grid of redshifts, given as the fraction of one pixel |
| delta_width | 0.5 | Step in the grid of line widths (tr), given as the fraction of one pixel |
| delta_offset | 0.5 | Step in the grid of line offsets, given as the fraction of one pixel |
| num_mc | 200 | Number of random realisations of the spectrum to compute Monte Carlo uncertainties |
| width_min-width_max | 50–500 | Minimum and maximum allowed widths (tr) for a line (km s−1) |
| same_width | false | Each line's width is allowed (true) to vary freely and independently in the fit, or not (false) |
| offset_max | ±1000 | Maximum allowed velocity offset for lines (km s−1) |
| offset_snr_min | 3 | Minimum S/N a line should have to be allowed to shift its centroid owing to velocity offsets |
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