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Astron. Astrophys. 318, 990-996 (1997)


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Electric fields for hydrogen bound-free transitions in magnetic white dwarfs

I. Seipp and W. Schweizer

Institut für Astronomie und Astrophysik, Auf der Morgenstelle 10, D-72076 Tübingen, Germany

Received 12 February 1996 / Accepted 2 April 1996

Abstract

We present photoionization spectra at optical wavelengths for hydrogen in strong parallel electric and magnetic fields for magnetic white dwarfs obtained with the complex coordinate method. It is shown that spectra calculated for fixed magnetic and electric fields can be averaged over a distribution of electric fields. Such averaged spectra are presented for fixed magnetic field with a Holtsmark distribution of electric fields at wavelengths around [FORMULA] interesting for a stationary line at [FORMULA].

Key words: atomic data – atomic processes – lines: profiles – stars: magnetic fields – white dwarfs

Send offprint requests to: W. Schweizer

© European Southern Observatory (ESO) 1997

Online publication: July 3, 1998

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