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An adaptive Gaussian quadrature for the Voigt function

Abstract : We evaluate an adaptive Gaussian quadrature integration scheme suitable for the numerical evaluation of generalized redistribution in frequency functions. The latter are indispensable ingredients for "full non-LTE" radiation transfer computations, assuming potential deviations of the velocity distribution of massive particles from the usual Maxwell-Boltzmann distribution. A first validation is made with computations of the usual Voigt profile.
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https://hal-cnrs.archives-ouvertes.fr/hal-02996443
Contributor : Torsten Böhm <>
Submitted on : Thursday, November 12, 2020 - 7:00:47 PM
Last modification on : Monday, April 5, 2021 - 2:26:15 PM
Long-term archiving on: : Saturday, February 13, 2021 - 8:25:51 PM

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F. Paletou, C. Peymirat, E. Anterrieu, T. Böhm. An adaptive Gaussian quadrature for the Voigt function. Astronomy and Astrophysics - A&A, EDP Sciences, 2020, 633, pp.A111. ⟨10.1051/0004-6361/201937116⟩. ⟨hal-02996443⟩

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