Ion Solitary Pulses in Warm Plasmas with Ultrarelativistic Degenerate Electrons and Positrons

Details Ion Solitary Pulses in Warm Plasmas with Ultrarelativistic Degenerate Electrons and Positrons Ion Solitary Pulses in Warm Plasmas with Ultrarelativistic Degenerate Electrons and Positrons

May 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012apj...750...72z&link_type=abstract

The Astrophysical Journal, Volume 750, Issue 1, article id. 72 (2012).

Astronomy and Astrophysics

Astronomy

Plasmas, Stars: Magnetars, Waves, White Dwarfs

Scientific paper

The nonlinear propagation of ion solitary pulses in a warm collisionless electron-positron-ion plasma with ultrarelativistic degenerate electrons and positrons has been investigated. Arbitrary and small- (but finite-) amplitude ion solitary pulses are investigated by deriving the Korteweg-de Vries equation and an energy-balance-like expression involving a Sagdeev-like pseudopotential. The existence regions for ion solitary pulses have been precisely defined and numerically investigated. The ion solitary pulse profiles are also displayed. Applications to the interior of white dwarf stars and the corona of magnetars are discussed.

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