Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation S. Sultana, I. Kourakis, N. Saini, M. A. Hellberg; Oblique electrostatic excitations in a magnetized plasma the presence of excess superthermal electrons. Phys. Plasmas 1 March 2010; 17 (3): 032310. https://doi.org/10.1063/1.3322895 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends...

Space plasmas provide abundant evidence of highly energetic particle population, resulting in a long-tailed non-Maxwellian distribution. Furthermore, the first stages evolution produced during laser–matter interaction are dominated by nonthermal electrons, as confirmed experimental observation and computer simulations. This phenomenon is efficiently modelled via kappa-type We present an overview, from principles, effect superthermality on characteristics electrostatic plasma waves. rely...

The nonlinear dynamics of electrostatic solitary waves in the form localized modulated wavepackets is investigated from first principles. Electron-acoustic (EA) excitations are considered a two-electron plasma, via fluid formulation. assumed to be collisionless and uniform (unmagnetized), composed two types electrons (inertial cold inertialess kappa-distributed superthermal electrons) stationary ions. By making use multiscale perturbation technique, Schrödinger equation derived for envelope,...

Dust-acoustic waves are investigated in a three-component plasma consisting of strongly coupled dust particles and Maxwellian electrons ions. A fluid model approach is used, with the effects strong coupling being accounted for by an effective electrostatic ``pressure'' which function number density potential. Both linear weakly nonlinear cases considered derivation analysis dispersion relation Korteweg-de Vries equation, respectively. In contrast to previous studies using this model, paper...

The propagation of ion acoustic shocks in nonthermal plasmas is investigated, both analytically and numerically. An unmagnetized collisionless electron-ion plasma considered, featuring a superthermal (non-Maxwellian) electron distribution, which modeled by κ-(kappa) distribution function. Adopting multiscale approach, it shown that the dynamics low-amplitude hybrid Korteweg-de Vries–Burgers (KdVB) equation, nonlinear dispersion coefficients are functions κ parameter, while dissipative...

The linear and nonlinear properties of large-amplitude electron-acoustic waves are investigated in a magnetized plasma comprising two distinct electron populations (hot cold) immobile ions. hot electrons assumed to be non-Maxwellian state, characterized by an excess superthermal particles, here modeled kappa-type long-tailed distribution function. Waves propagate obliquely the ambient magnetic field. Two types electrostatic modes shown exist regime, their briefly analyzed. A...

The properties of obliquely propagating ion-acoustic solitary waves in the presence ambient magnetic field have been investigated theoretically an electron-positron-ion nonthermal plasma. plasma nonthermality is introduced via q-nonextensive distribution electrons and positrons. Korteweg-de Vries (K-dV) modified K-dV (mK-dV) equations are derived by adopting reductive perturbation method. solution equation, which describes wave characteristics long wavelength limit, obtained steady state...

A theoretical and numerical investigation has been carried out on amplitude modulated heavy nucleus-acoustic envelope solitons (HNAESs) in a degenerate relativistic quantum plasma (DRQP) system containing relativistically electrons light nuclei, non-degenerate mobile nuclei. The cubic nonlinear Schrödinger equation, describing the dynamics of waves (HNAWs), is derived by employing multi-scale perturbation technique. dispersion relation for HNAWs derived, criteria occurrence modulational...

The linear and nonlinear properties of small-amplitude electron-acoustic solitary waves are investigated via the fluid dynamical approach. A three-component plasma is considered, composed hot electrons, cold ions (considered stationary at scale interest). dissipative (wave damping) effect assumed due to electron-neutral collisions. background (hot) electrons characterized by an energetic (excessively superthermal) population thus modeled a κ-type nonthermal distribution. characteristics...

A degenerate relativistic three-component plasma model is proposed for ultra-low frequency shock dynamics. reductive perturbation technique adopted, leading to Burgers' nonlinear partial differential equation. The properties of the waves are analyzed via stationary wave solution different configuration parameters. role intrinsic parameters, especially effects on linear and also dynamics, briefly discussed.