Overtaking collisions of oblique isothermal ion‐acoustic multisolitons in ultra‐relativistic degenerate dense magnetoplasmas
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DOI: 10.1002/ctpp.202000044
Abstract: Overtaking collisions of oblique isothermal ion‐acoustic multisolitons are studied in an ultra‐relativistic degenerate dense magnetoplasma, containing non‐degenerate inertial warm ions and ultra‐relativistic degenerate inertialess electrons and positrons. A non‐linear Korteweg‐de Vries (KdV) equation describing oblique… read more here.
Keywords: oblique isothermal; degenerate; ultra relativistic; ion acoustic ... See more keywords
Emergence of hydrodynamical behavior in expanding ultra-relativistic plasmas
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DOI: 10.1016/j.aop.2019.167993
Abstract: Abstract We use a set of simple angular moments to solve the Boltzmann equation in the relaxation time approximation for a boost invariant longitudinally expanding ultra-relativistic plasma. The transition from the free streaming regime at… read more here.
Keywords: moment; emergence hydrodynamical; time; hydrodynamics ... See more keywords
Dispersion characteristics of anisotropic unmagnetized ultra-relativistic transverse plasma wave with arbitrary electron degeneracy
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DOI: 10.1063/1.5009709
Abstract: Thermal momentum space anisotropy is ubiquitous in many astrophysical and laboratory plasma environments. Using Vlasov-Maxwell's model equations, a generalized polarization tensor for a collisionless ultra-relativistic unmagnetized electron plasma is derived. In particular, the tensor is… read more here.
Keywords: electron degeneracy; plasma; arbitrary electron; electron ... See more keywords
Evolution of ultra-relativistic hollow electron beams during their propagation in plasmas
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DOI: 10.1063/1.5065375
Abstract: Ultra-relativistic hollow electron beams can drive plasma wakefields (∼GV/m) suitable for positron acceleration. Stable propagation of hollow electron beams for long distances in plasmas is required to accelerate positrons to high energies by these plasma… read more here.
Keywords: electron beams; hollow electron; electron; ultra relativistic ... See more keywords
Rayleigh–Taylor instability in compressible ultra-relativistic degenerate strongly coupled plasma
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DOI: 10.1063/5.0146337
Abstract: Dense stars (e.g., white dwarfs) are composed of mainly ultra-relativistic degenerate electrons and strongly coupled ions subjected to a gravitational field. Considering the physical conditions of such systems, in this paper, we investigate the linear… read more here.
Keywords: degenerate; degenerate strongly; instability; strongly coupled ... See more keywords
Three-Dimensional Isothermal Ion Acoustic Shock Waves in Ultra-Relativistic Degenerate Electron–Positron–Ion Magnetoplasmas
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DOI: 10.1134/s1063780x20040030
Abstract: Abstract The modifications, which arise from ultra-relativistic and degenerate effects of electrons and positrons as well as the chemical potentials in the basic features of three-dimensional isothermal ion acoustic shock waves (IIASWs) propagating in magnetized… read more here.
Keywords: three dimensional; relativistic degenerate; ion; ultra relativistic ... See more keywords