TY - JOUR
T1 - Dissipative Ion-Acoustic Solitary Waves in Magnetized κ-Distributed Non-Maxwellian Plasmas
AU - Sultana, Sharmin
AU - Kourakis, Ioannis
N1 - Funding Information:
Funding: Financial support by the project FSU-2021-012/8474000352 “Modeling of Nonlinear Waves and Shocks in Space and Laboratory Plasmas” (PI: Ioannis Kourakis), funded by Khalifa University of Science and Technology (Abu Dhabi, United Arab Emirates), is acknowledged, with thanks. Support from ADEK (Abu Dhabi Department of Education and Knowledge, United Arab Emirates), currently ASPIRE, in the form of an AARE-2018 (ADEK Award for Research Excellence 2018) grant (ADEK/HE/157/18—AARE-179) is also gratefully acknowledged.
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/3
Y1 - 2022/3
N2 - The propagation of dissipative electrostatic (ion-acoustic) solitary waves in a magnetized plasma with trapped electrons is considered via the Schamel formalism. The direction of propagation is assumed to be arbitrary, i.e., oblique with respect to the magnetic field, for generality. A non-Maxwellian (nonthermal) two-component plasma is considered, consisting of an inertial ion fluid, assumed to be cold for simplicity, and electrons. A (kappa) κ-type distribution is adopted for the electron population, in addition to particle trapping taken into account in phase space. A damped version of the Schamel-type equation is derived for the electrostatic potential, and its analytical solution, representing a damped solitary wave, is used to examine the nonlinear features of dissipative ion-acoustic solitary waves in the presence of trapped electrons. The influence of relevant plasma configuration parameters, namely the percentage of trapped electrons, the electron superthermality (spectral) index, and the direction of propagation on the solitary wave characteristics is investigated.
AB - The propagation of dissipative electrostatic (ion-acoustic) solitary waves in a magnetized plasma with trapped electrons is considered via the Schamel formalism. The direction of propagation is assumed to be arbitrary, i.e., oblique with respect to the magnetic field, for generality. A non-Maxwellian (nonthermal) two-component plasma is considered, consisting of an inertial ion fluid, assumed to be cold for simplicity, and electrons. A (kappa) κ-type distribution is adopted for the electron population, in addition to particle trapping taken into account in phase space. A damped version of the Schamel-type equation is derived for the electrostatic potential, and its analytical solution, representing a damped solitary wave, is used to examine the nonlinear features of dissipative ion-acoustic solitary waves in the presence of trapped electrons. The influence of relevant plasma configuration parameters, namely the percentage of trapped electrons, the electron superthermality (spectral) index, and the direction of propagation on the solitary wave characteristics is investigated.
KW - Dissipative solitary waves
KW - Kappa distribution
KW - Magnetized plasma
KW - Oblique propagation of electrostatic plasma waves
KW - Schamel equation
KW - Superthermal trapped electrons
KW - Suprathermals
UR - https://www.scopus.com/pages/publications/85124947934
U2 - 10.3390/physics4010007
DO - 10.3390/physics4010007
M3 - Article
AN - SCOPUS:85124947934
SN - 2624-8174
VL - 4
SP - 68
EP - 79
JO - Physics (Switzerland)
JF - Physics (Switzerland)
IS - 1
ER -