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Session 68 - Degenerate Stars, Pulsars.
Display session, Thursday, June 11
Atlas Ballroom,

[68.12] Magnetic Effects on Thermal Evolution of Neutron Stars

A. M. K. LeRoux, S. Tsuruta (Montana State University)

Strong magnetic fields on neutron stars have long been known to affect photon transport much more than thermal conduction. One-dimensional simulations of magnetic fields have shown that the effects on thermal evolution are small, but a two-dimensional treatment by our group has shown that the angular dependence of the magnetic field, when treated rigorously, substantially modifies the predicted luminosity late in thermal evolution. Here we present the results of analytical calculations and the results of an isothermal neutron star modelled with two angular compartments and standard cooling. The time of the transition from neutrino-dominated cooling to photon- dominated cooling is delayed, resulting in higher predicted temperatures near 10^7 years than are consistent with observation and requiring a faster cooling mechanism.

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Program listing for Thursday