| Issue |
A&A
Volume 633, January 2020
|
|
|---|---|---|
| Article Number | A111 | |
| Number of page(s) | 4 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361/201937116 | |
| Published online | 17 January 2020 | |
An adaptive Gaussian quadrature for the Voigt function
1
Université de Toulouse, UPS-Observatoire Midi-Pyrénées, CNRS, CNES, IRAP, Toulouse, France
e-mail: frederic.paletou@univ-tlse3.fr
2
CNRS, Institut de Recherche en Astrophysique et Planétologie, 14 av. E. Belin, 31400 Toulouse, France
3
Université de Toulouse, Faculté des Sciences et de l’Ingénierie, 31062 Toulouse Cedex 9, France
4
CNRS, Cesbio, UPS–CNES–IRD, 18 av. E. Belin, 31401 Toulouse, France
Received:
15
November
2019
Accepted:
10
December
2019
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.
Key words: methods: numerical / radiation mechanisms: general / line: profiles
© F. Paletou et al. 2020
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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