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- W2064435719 abstract "We have investigated the electrodynamics of magnetic neutron stars accreting from Keplerian disks and the implications for particle acceleration and gamma-ray emission by such systems. We argue that the particle density in the magnetospheres of such stars is larger by orders of magnitude than the Goldreich-Julian density, so that the formation of vacuum gaps is unlikely. We show that even if the star rotates slowly, electromotive forces (EMFs) of order 10(exp 15) V are produced by the interaction of plasma in the accretion disk with the magnetic field of the neutron star. The resistance of the disk-magnetosphere-star circuit is small, and hence these EMFs drive very large conduction currents. Such large currents are likely to produce magnetospheric instabilities, such as relativistic double layers and reconnection events, that can accelerate electrons or ions to very high energies." @default.
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- W2064435719 date "1994-02-01" @default.
- W2064435719 modified "2023-09-27" @default.
- W2064435719 title "Electrodynamics of disk-accreting magnetic neutron stars" @default.
- W2064435719 doi "https://doi.org/10.1086/191911" @default.
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