A mechanism of particle acceleration in astrophysical magnetospheres

Details A mechanism of particle acceleration in astrophysical magnetospheres A mechanism of particle acceleration in astrophysical magnetospheres

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aps..dpp.fo108l&link_type=abstract

American Physical Society, 41st Annual Meeting of the Division of Plasma Physics, November 15-19, 1999 Seattle, WA, abstract #FO

Physics

Plasma Physics

Scientific paper

We discuss particle acceleration by electrostatic polarization fields arising in plasmoids injected into the magnetic field. In magnetospheres of compact stellar objects these fields can give rise to ultra-relativistic voltages in typical accreting plasma streams as well as in impacting asteroid-size plasma ``blobs''. We focus on limitations on accelerated particle energies due to curvature and synchrotron radiation losses and analyze particle motion with radiation reaction taken into account. Finally we discuss implications of this mechanism for highest-energy cosmic ray generation in neutron star magnetospheres.

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