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oai:uvadoc.uva.es:10324/569312025-02-13T13:32:55Zcom_10324_1159com_10324_931com_10324_894col_10324_1310

Calisti, Annette Demura, Alexander Gigosos Pérez, Marco Antonio González Herrero, Diego Iglesias, Carlos Lisitsa, Valery Stambulchik, Evgeny 2022-11-10T12:56:55Z 2022-11-10T12:56:55Z 2014 Atoms, 2014, vol.2, n. 2, p. 259-276 2218-2004 https://uvadoc.uva.es/handle/10324/56931 10.3390/atoms2020259 259 2 276 Atoms 2 2218-2004 In the framework of the Spectral Line Shapes in Plasmas Code Comparison Workshop (SLSP), large discrepancies appeared between the different approaches to account for ion motion effects in spectral line shape calculations. For a better understanding of these effects, in the second edition of the SLSP in August, 2013, two cases were dedicated to the study of the ionic field directionality on line shapes. In this paper, the effects of the direction and magnitude fluctuations are separately analyzed. The effects of two variants of electric field models, (i) a pure rotating field with constant magnitude and (ii) a time-dependent magnitude field in a given direction, together with the effects of the time-dependent ionic field on shapes of the He II Lyman-α and -β lines for different densities and temperatures, are discussed. eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ © 2014 The Author(s) Attribution 3.0 Unported Influence of microfield directionality on line shapes info:eu-repo/semantics/article