Optimal Combination of Sub-Stepped Spectra

J. R. Walsh and L. B. Lucy


The small aperture of the GHRS projects to just one detector diode. In order to achieve adequate sampling, the data are sub-stepped in half or quarter diode steps. Using the Richardson-Lucy algorithm, optimal combination of these sub-stepped spectra can be achieved in order to regain resolution. The technique, which can be generally applied to spectra which are undersampled by the detector, is described and some examples are shown.


Pages 267-271


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