Ion-acoustic shock waves in a plasma with weakly relativistic warm ions, thermal positrons and a background electron nonextensivity

Details Ion-acoustic shock waves in a plasma with weakly relativistic warm ions, thermal positrons and a background electron nonextensivity Ion-acoustic shock waves in a plasma with weakly relativistic warm ions, thermal positrons and a background electron nonextensivity

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ap%26ss.tmp...27t&link_type=abstract

Astrophysics and Space Science, Online First

Astronomy and Astrophysics

Astrophysics

Plasmas, Ion Acoustic Waves, Weakly Relativistic Ions, Nonextensive Electrons, Positrons, Shock Waves, K-Dvb Equation, Kinematic Viscosity

Scientific paper

A weakly nonlinear analysis is carried out to derive a Korteweg-de Vries-Burgers-like equation for small, but finite amplitude, ion-acoustic waves in a dissipative plasma consisting of weakly relativistic ions, thermal positrons and nonextensive electrons. The travelling wave solution has been acquired by employing the tangent hyperbolic method. Our results show that in a such plasma, ion-acoustic shock waves, the strength and steepness of which are significantly modified by relativistic, nonextensive and dissipative effects, may exist. Interestingly, we found that because of ion kinematic viscosity, an initial solitonic profile develops into a shock wave. This later evolves towards a monotonic profile (dissipation-dominant case) as the electrons deviate from their Maxwellian equilibrium. Our investigation may help to understand the dissipative structures that may occur in high-energy astrophysical plasmas.

Affiliated with

Also associated with

No associations

Rating

Ion-acoustic shock waves in a plasma with weakly relativistic warm ions, thermal positrons and a background electron nonextensivity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ion-acoustic shock waves in a plasma with weakly relativistic warm ions, thermal positrons and a background electron nonextensivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion-acoustic shock waves in a plasma with weakly relativistic warm ions, thermal positrons and a background electron nonextensivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-750469