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Table A.1
List of the arcfinder parameters.
| Ridge detection | ||
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| Gridsize | 7 | Length and width of each cell [pix] |
| Cell spacing | 0.45 | Distance between cells is Cell spacing x Gridsize |
| Threshold cell | 0.45 | Coupling threshold for average coupling over the cell neighbourhood |
| Threshold object | 0.75 | Coupling threshold for inclusion of a single cell into an object |
| Threshold graph | 0.75 | Coupling threshold for graph generation |
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| Filtering | ||
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| Deblending asymmetry | 30 | Median intensity difference for deblending |
| Deblending distance | 21 | Minimum deblending distance |
| Stars saturation intensity | 500 | Critical intensity above which pixels are considered as saturated |
| Star intensity | 50 | Intensity above which pixels are likely to belong to stars creating diffraction spikes |
| Star-fluxcoeff spike | 3200 | Compute spike radius as fluxcoeff-spike× flux1 / 2 |
| Star-fluxcoeff disk | 420 | Compute disk radius as fluxcoeff-disk× flux1 / 3 |
| Maxpeakflux | 0.6 | Maximal peak flux in ADUs above the background |
Notes. For a detailed description we refer to the text.
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