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Paper: Towards a General Definition for Spectroscopic Resolution
Volume: 77, Astronomical Data Analysis Software and Systems IV
Page: 503
Authors: Jones, A. W.; Bland-Hawthorn, J.; Shopbell, P. L.
Abstract: Judged by their instrumental profiles, spectrometers fall into two basic classes---Lorentzian and Gaussian---with many other line profile functions (sinc(m) functions, Voigt functions, Airy functions, etc.) falling into one of these two categories in some limit. We demonstrate that the Rayleigh, Sparrow, and Houston resolution criteria are of limited use compared to the ``equivalent width'' of the line profile.
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