Partially ionized atmospheres of neutron stars with strong magnetic fields
arXiv:astro-ph/0501467 · doi:10.1016/j.asr.2004.12.010
Abstract
We construct hydrogen atmosphere models for strongly magnetized neutron stars in thermodynamic equilibrium, taking into account partial ionization. The presence of bound states affects the equation of state, absorption coefficients, and polarizability tensor of a strongly magnetized plasma. Therefore the partial ionization influences the polarization vectors and opacities of normal electromagnetic waves, and thus the spectra of outgoing radiation. Here we review a model suitable for the most typical neutron-star atmospheres and focus on the problems that remain to be solved for its extension to other atmospheric parameters.
arXiv comment7 pages, 1 figure, Adv. Sp. Res., in press
References in corpus (19)
- Matter in Strong Magnetic Fields
- Atmospheres and Spectra of Strongly Magnetized Neutron Stars
- Atmospheres and Spectra of Strongly Magnetized Neutron Stars II: Effect of Vacuum Polarization
- Proton Cyclotron Features in Thermal Spectra of Ultra-magnetized Neutron Stars
- Transfer of Polarized Radiation in Strongly Magnetized Plasmas and Thermal Emission from Magnetars: Effect of Vacuum Polarization
- Magnetized Iron Atmospheres for Neutron Stars
- Resonant Conversion of Photon Modes Due to Vacuum Polarization in a Magnetized Plasma: Implications for X-Ray Emission from Magnetars
- Electromagnetic polarization in partially ionized plasmas with strong magnetic fields and neutron star atmosphere models
- Radiation from condensed surface of magnetic neutron stars
- Partially ionized hydrogen plasma in strong magnetic fields
- Atmospheres and Spectra of Strongly Magnetized Neutron Stars -- III. Partially Ionized Hydrogen Models
- Equation of state and opacities for hydrogen atmospheres of neutron stars with strong magnetic fields
- Photoionization of hydrogen in atmospheres of magnetic neutron stars
- Equation of state and opacities for hydrogen atmospheres of magnetars
- Helium in superstrong magnetic fields
- Electromagnetic transitions of the helium atom in superstrong magnetic fields
- Polarization Modes in a Strongly Magnetized Hydrogen Gas
- Modeling Neutron Star Atmospheres
- Atmospheres of Magnetized Neutron Stars: Vacuum Polarization and Partially Ionized Models