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Comments on the Voigt function implementation in the Astropy and SpectraPlot.com packages

Schreier, Franz (2018) Comments on the Voigt function implementation in the Astropy and SpectraPlot.com packages. Journal of Quantitative Spectroscopy and Radiative Transfer, 213, pp. 13-16. Elsevier. doi: 10.1016/j.jqsrt.2018.03.019. ISSN 0022-4073.

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Official URL: https://www.sciencedirect.com/science/article/pii/S0022407318301511


The Voigt profile is important for spectroscopy, astrophysics, and many other fields of physics, but is notoriously difficult to compute. McLean et al. [J. Electron Spectrosc. & Relat. Phenom., 1994] have proposed an approximation using a sum of Lorentzians. Our assessment indicates that this algorithm has significant errors for small arguments. After a brief survey of the requirements for spectroscopy we give a short list of both efficient and accurate codes and recommend implementations based on rational approximations.

Item URL in elib:https://elib.dlr.de/119673/
Document Type:Article
Title:Comments on the Voigt function implementation in the Astropy and SpectraPlot.com packages
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schreier, Franzfranz.schreier (at) dlr.dehttps://orcid.org/0000-0001-7196-6599
Date:April 2018
Journal or Publication Title:Journal of Quantitative Spectroscopy and Radiative Transfer
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.jqsrt.2018.03.019
Page Range:pp. 13-16
EditorsEmailEditor's ORCID iD
Bernath, PeterOld Dominion University, Norfolk, Virginia, USAUNSPECIFIED
Mengüç, M. PinarÖzyeğin University, Istanbul, TurkeyUNSPECIFIED
Mishchenko, Michael I.NASA-Goddard Institute for Space Studies, New York, USAUNSPECIFIED
Keywords:Complex error function; Complex probability function; Plasma dispersion function; Fadde(y)eva function
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):Vorhaben Spectroscopic Methods in Remote Sensing (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Schreier, Dr.rer.nat. Franz
Deposited On:19 Apr 2018 11:53
Last Modified:06 Sep 2019 15:28

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