Keywords: imager

Next: Line Stacking Up: Advanced Data Analysis Previous: Advanced Data Analysis Contents Index

## Matched Filtering

Weak signal detection is always an issue in most astrophysical cases (e.g. high redshift galaxies, faint lines in proto-planetary disks, to cite some).

For spectral lines, [rgb]1,0,0IMAGER offers the magenta`UV_DETECT` command, that uses an image model as an optimal filter to enhance weak line detection. This is a generic tool, that can use an observed data cube (from a strong line, presumably) as the image model, or the result of a simulation.