Examples

Example 1. Cross-correlating a Galaxy Spectrum

This cross-correlation of a galaxy spectrum with absorption lines demonstrates the variety of intermediate graphical and printed information available when running xcsao. This may help in understanding how the task computes a redshift.

Example 2. Cross-correlating a Galaxy with Emission Lines

This cross-correlation of a galaxy spectrum exhibiting both emission and absorption features shows the variety of graphical summaries and printed reports in which xcsao reports its results. These can be used to get a feeling for the quality of the resulting redshift and to pass on xcsao results for use by other programs.

Example 3. Cross-correlating a Whole Night At Once

To obtain redshifts for a whole night's worth of galaxy spectra using a list of template spectra:
        rv> xcsao @nite1.ls templates=@temp.ls
where the file temp.ls contains the names of the image files containing the template spectra and the file nite1.ls contains the names of the image files containing the galaxy spectra.
[xcsao]