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Unified line profiles for hydrogen perturbed by collisions with protons : satellites and asymmetries

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Unified line profiles for hydrogen perturbed by collisions with protons : satellites and asymmetries

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Título Unified line profiles for hydrogen perturbed by collisions with protons : satellites and asymmetries
Autor Pelisoli, Ingrid Domingos
Santos, Marcio Gabriel dos
Kepler, Souza Oliveira
Abstract We present new calculations of unified line profiles for hydrogen perturbed by collisions with protons. We report on new calculations of the potential energies and dipole moments which allow the evaluation of profiles for the lines of the Lyman series up to Lyman δ and the Balmer series up to Balmer 10. Unified calculations only existed for the lines Lyman α to Lyman γ and Balmer α including the H+ 2 quasi-molecule. These data are available as online material accompanying this paper and should be included in atmosphere models, in place of the Stark effect of protons, since the quasi-molecular contributions cause not only satellites, but large asymmetries that are unaccounted for in models that assume that Stark broadening of electrons and that of protons are equal.
Contido em Monthly notices of the royal astronomical society. Oxford [recurso eletrônico]. Vol. 448, n. 3 (April 2015), p. 2332-2343
Assunto Anãs brancas
Hidrogenio
Protons
Satélites
[en] Atomic data
[en] Line: profiles
[en] White dwarfs
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/115355
Arquivos Descrição Formato
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