Astron. Astrophys. Suppl. Ser. 145, 491-494

Tables of dipolar emission and two-photon absorption Lyman$-\alpha$ profiles

M.Á. González¹ - M.A. Gigosos²

Send offprint request: M.A. Gigosos

1 - Departamento de Termodinámica y Física Aplicada, Edificio de las Tecnologías de la Información y las Telecomunicaciones,
Universidad de Valladolid, Spain
e-mail: manu@elsinore.fa2.etit.uva.es
2 - Departamento de Óptica, Facultad de Ciencias, Universidad de Valladolid, Spain
e-mail: gigosos@coyanza.opt.cie.uva.es

Received February 23; accepted May 11, 2000

Abstract:

This paper shows the results of calculations, obtained by computer simulation, of the Stark broadening of the dipolar Lyman$-\alpha$ line of hydrogen considering fine structure, of two-photon absorption profiles for the transition 1S$\to$2S of hydrogen and of the profiles that could be obtained using two-photon polarization spectroscopy techniques for the aforementioned transition. Calculations have been carried forward for wide ranges of electron density, between 4 10¹⁹ and 10²³ m^-3 and temperature, between 2 000 and 100 000 K. We have considered ion dynamics effects with perturbers of different masses.

In this paper we give the obtained profiles and the autocorrelation functions. These autocorrelation functions could be used in order to add another broadening mechanisms before obtaining the spectral profiles.

Key words: line: profiles -- plasmas