Magnetically accelerated particles in an anisotropic disk radiation field

Details Magnetically accelerated particles in an anisotropic disk radiation field Magnetically accelerated particles in an anisotropic disk radiation field

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...381..357x&link_type=abstract

Astronomy and Astrophysics, v.381, p.357-360 (2002)

Astronomy and Astrophysics

Astrophysics

1

Galaxies: Active, Nuclei, Acceleration Of Particles, Accretion Disks

Scientific paper

We consider the magnetic acceleration of charged particles in rotating magnetospheres of active galactic nuclei (AGNs). The accelerating particle loses its kinetic energy due to the inverse Compton scattering with the photons emitted from the disk. The disk radiation is anisotropic, so that the inverse Compton energy loss of the particle depends sensitively on the direction of motion of the particle. We find that the maximum Lorentz factor the accelerating electron can attain near the light cylinder is mainly determined by the direction of motion of the electron. In the cases of Ldisk/LEdd<= 10-2, the maximum Lorentz factor of a magnetically accelerated electron can be as high as a few thousand, if the electron is moving close to the normal direction to the disk. The maximum Lorentz factor becomes relatively low if Ldisk/LEdd>10-2.

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