Unified theory calculations of Stark-broadened hydrogen lines in the presence of a magnetic field

Details Unified theory calculations of Stark-broadened hydrogen lines in the presence of a magnetic field Unified theory calculations of Stark-broadened hydrogen lines in the presence of a magnetic field

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...139..196m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 139, no. 1, Oct. 1984, p. 196-210. Research supported by the Max-Planck-Instit

Statistics

Computation

17

Computational Astrophysics, H Lines, High Temperature Plasmas, Spectral Line Width, Stark Effect, Stellar Magnetic Fields, Cosmic Plasma, Electron Density (Concentration), Line Shape, Magnetic Effects, Magnetic Field Configurations, Plasma Physics, Schroedinger Equation, Stellar Atmospheres, Temperature Effects

Scientific paper

Reference is made to an earlier paper (Mathys, 1983) in which an expression has been derived for the Stark-broadened profiles of hydrogen lines in a hot dense plasma in the presence of a large-scale uniform magnetic field. It is shown here how various symmetry properties can be used to simplify the computation of profiles. The approximations and assumptions underlying the theory are also examined, and it is shown that the theory is well suited to the range of conditions existing in several astrophysical situations, such as the atmospheres of magnetic stars and the magnetic regions of the sun. Numerical results for the lines L-alpha, L-beta, and H-alpha are presented for electron densities equal to or higher than 10 to the 15th per cu cm. The effects of the magnetic field, electron density, and temperature are reviewed.

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