Diffusion and decay of the magnetic field in a neutron star core

Details Diffusion and decay of the magnetic field in a neutron star core Diffusion and decay of the magnetic field in a neutron star core

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992azh....69.1041u&link_type=abstract

Astronomicheskij Zhurnal (ISSN 0004-6299), vol. 69, no. 5, p. 1041-1051.

Astronomy and Astrophysics

Astronomy

3

Gaseous Diffusion, Magnetic Field Configurations, Neutron Stars, Stellar Cores, Stellar Magnetic Fields, Relaxation Time, Stellar Evolution

Scientific paper

In the presence of a sufficiently strong magnetic field that is capable of magnetizing charged particles in a neutron star core, a significant increase in the electric resistivity across the field, occurs. The growth of the resistivity results in an accelerated decay of magnetic configurations in which the current is perpendicular to the field. The evolution of the toroidal magnetic field is considered with this effect taken into account. It is shown that the field's decay in the core with B not less than 10 exp 12 G will occur on a characteristic time scale of several million years. Additional heating, due to ohmic current dissipation, may significantly slow down the star's cooling.

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