Ionization equilibrium of hydrogen in strong magnetic field with allowance for pressure effects

Details Ionization equilibrium of hydrogen in strong magnetic field with allowance for pressure effects Ionization equilibrium of hydrogen in strong magnetic field with allowance for pressure effects

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.1002b&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #10.02; Bulletin of the American Astronomical Society, Vol. 24, p.1133

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The ionization equilibrium in highly magnetized (B=10(10) to 10(12) G) hydrogen is investigated at temperatures from 5 eV to 50 keV and densities in the range 10(-3) to 10(3) g/cm(3) . We have used the occupation probability formalism in order to take into account the pressure and density effects. The occupation probabilities used are slightly modified as compared to those derived by Hummer and Mihalas. We find that pressure ionization degree varies with the form of microfield distribution function. The non-ionized fraction is increased by the magnetic field in most of the parameter space. It is large enough so that the bound-free absorption must be taken into account in realistic models of neutron star atmospheres.

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