Equation of state and opacities for hydrogen atmospheres of strongly magnetized cooling neutron stars
classification
🌌 astro-ph
physics.plasm-ph
keywords
equationhydrogenneutronopacitiesplasmastarsanalyticatmospheres
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We study partially ionized hydrogen plasma at temperatures T = 10^{5.5}-10^{6.5} K and magnetic fields B = 10^{12}-10^{13} G, typical of photospheres of isolated neutron stars. We construct an analytic model of the plasma free energy and derive a generalized Saha equation which is used to obtain the opacities.
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