AAS 197, January 2001
Session 126. Compact Objects and Accretion Systems
Oral, Thursday, January 11, 2001, 1:30-3:00pm, Pacific One

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[126.04] Coupled Monte-Carlo/Fokker-Planck simulations of high-energy emission from accreting magnetized neutron stars

M. Boettcher, E. P. Liang (Rice University)

We have developed a time-dependent Monte-Carlo radiation transport code for hot, ionized plasmas, coupled to an implicit Fokker-Planck code to self-consistently follow electron and radiation spectra in non-stationary situations. Effects of Compton scattering, Coulomb scattering, elastic lepton-lepton scattering, stochastic acceleration, and bremsstrahlung and cyclotron/synchrotron emission and absorption are taken into account. This code has been applied to a magnetospheric accretion shell around a magnetized neutron star. We will present results of a parameter study, focusing on the influence of variations of the accretion rate, the magnetic moment of the neutron star, and the level of plasma wave turbulence in the accretion shell.

This work is supported through Chandra Postdoctoral Fellowship Award no. PF 9-10007.

The author(s) of this abstract have provided an email address for comments about the abstract: mboett@spacsun.rice.edu

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