Alfven waves in regions of magnetic reconnection and the acceleration of newborn ions

Details Alfven waves in regions of magnetic reconnection and the acceleration of newborn ions Alfven waves in regions of magnetic reconnection and the acceleration of newborn ions

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cha%26a..26...29w&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 26, Issue 1, p. 29-39.

Astronomy and Astrophysics

Astrophysics

Region Of Magnetic Reconnection, Alfven Waves, Ion Acceleration

Scientific paper

We use a 2-D hybrid numerical simulation to study velocity-driven magnetic reconnection in low-beta plasmas. Our results show that Alfven waves can be produced in the process. Under their action newborn ions undergo pitch-angle scattering and assume a spherical shell distribution. A part of the ions are accelerated to a maximum energy of about 4(miV2A0/2). The acceleration lasts over a time scale of 100/Ωi, and is extremely rapid. The energy spectrum of the accelerated ions is a double power-law spectrum.

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