Influence of vacuum polarization by the magnetic field on the radiative thermal conductivity of the surface layers of neutron stars

Details Influence of vacuum polarization by the magnetic field on the radiative thermal conductivity of the surface layers of neutron stars Influence of vacuum polarization by the magnetic field on the radiative thermal conductivity of the surface layers of neutron stars

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982afz....18..119p&link_type=abstract

(Astrofizika, vol. 18, Jan.-Mar. 1982, p. 119-131.) Astrophysics, vol. 18, no. 1, July 1982, p. 72-79. Translation.

Astronomy and Astrophysics

Astrophysics

Neutron Stars, Stellar Magnetic Fields, Stellar Temperature, Cooling, Electron Gas, Electron-Positron Pairs, Heat Transfer Coefficients, Polarization (Charge Separation), Radiative Heat Transfer, Thermal Conductivity, Vacuum Effects

Scientific paper

Calculations are presented to quantitatively define a level at which the magnetic field at the surface of a neutron star significantly affects the radiative cooling of the star. Cooling of a neutron star is dependent on the radiative thermal conductivity of the surface plasma layers, which have been shown to be only a few meters thick. One of the processes of radiative cooling involves Thomson scattering, which, when density is below a certain point in the surface layers, can be influenced by the magnetic field. One particular effect is the vacuum polarization of the electron-positron pairs, a situation which affects the absorption coefficients. A temperature level is found at which the vacuum polarization becomes significant, due to a decrease in the anisotropy of the thermal conductivity.

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