General Relativistic Effects on the Ohmic Decay of Crustal Magnetic Fields in Neutron Stars

Abstract

The ohmic decay of magnetic fields confined within the crust of neutron stars is considered by incorporating the effect of space-time curvature produced by the intense gravitational field of the star. It is shown that general relativistic effect reduces the magnetic field decay rate substaintially and specially at the late time of the evolution the decay rate decreases by several orders of magnitude when compared with the case without the relativistic effect.

14 pages, two eps figures included, uses AAS LATEX macros v4.0. Accepted for publication in the Astrophysical Journal Letters

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