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This note studies a model for relativistic pure-radiation fluids with viscosity that was recently proposed by Bemfica, Disconzi and Noronha, and shows that there are shock waves whose continuous shock profiles, if existing, are oscillating…

偏微分方程分析 · 数学 2023-01-30 Valentin Pellhammer

The primary objective of this thesis is to develop a consistent theoretical framework of dissipative hydrodynamics for a relativistic fluid with spin - hereafter referred to as relativistic dissipative spin hydrodynamics. In this framework,…

高能物理 - 唯象学 · 物理学 2025-12-25 Asaad Daher

We have extended the procedure to find the exact solution of the Riemann problem in relativistic hydrodynamics to a particular case of relativistic magnetohydrodynamics in which the magnetic field of the initial states is tangential to the…

天体物理学 · 物理学 2009-11-13 Roberto Romero , Jose M. Marti , Jose A. Pons , Jose M. Ibanez , Juan A. Miralles

This paper shows that in second-order hyperbolic systems of partial differential equations proposed in authors' earlier paper (J. Math. Phys. 59 (2018)) for modelling the relativistic dynamics of barotropic fluids in the presence of…

偏微分方程分析 · 数学 2023-03-22 Heinrich Freistuhler

Starting from the Vlasov-Maxwell equations describing the dynamics of various species in a quasi-neutral plasma immersed in an external solenoidal magnetic field and utilizing a technique known as the hydrodynamic substitution, a…

等离子体物理 · 物理学 2024-02-28 Stephan I. Tzenov

We show that relativistic hydrodynamics in Minkowski space-time has intrinsic ambiguity in second order viscosity parameters in the Landau-Lifshitz frame. This stems from the possibility of improvements of energy-momentum tensor. There…

高能物理 - 理论 · 物理学 2012-10-08 Yu Nakayama

Effective theory arguments are used to derive the most general energy-momentum tensor of a relativistic viscous fluid with an arbitrary equation of state (in the absence of other conserved currents) that is first-order in the derivatives of…

广义相对论与量子宇宙学 · 物理学 2022-02-22 Fábio S. Bemfica , Marcelo M. Disconzi , Jorge Noronha

We present a linear mode analysis of the relativistic MHD equations in the presence of finite electrical conductivity. Starting from the fully relativistic covariant formulation, we derive the dispersion relation in the limit of small…

高能天体物理现象 · 物理学 2018-10-17 A. Mignone , G. Mattia , G. Bodo

Generalization of the self-similar solution for ultrarelativistic shock waves (Blandford & McKee, 1976) is obtained in presence of losses localized on the shock front or distributed in the downstream medium. It is shown that there are two…

天体物理学 · 物理学 2007-05-23 E. V. Derishev , Vl. V. Kocharovsky , K. A. Martiyanov

To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock…

高能物理 - 唯象学 · 物理学 2009-11-18 I. Bouras , E. Molnar , H. Niemi , Z. Xu , A. El , O. Fochler , C. Greiner , D. H. Rischke

We prove the contraction property of any large solution perturbed from a viscous-dispersive shock wave of the Navier--Stokes--Korteweg (NSK) system. The contraction holds up to a dynamical shift, since the contraction is measured by the…

偏微分方程分析 · 数学 2026-02-17 Namhyun Eun , Moon-Jin Kang , Jeongho Kim

In this paper we present the equations and some basic applications of relativistic SPH. The equations are generated under the assumption that there are no interaction terms between the fluid modelled and the background space-time, i.e. we…

天体物理学 · 物理学 2007-05-23 Stuart Muir , Joe Monaghan

Relativistic shocks are present in all high-energy astrophysical processes involving relativistic plasma outflows interacting with their ambient medium. While a well understood process in the context of relativistic hydrodynamics and ideal…

高能天体物理现象 · 物理学 2023-11-28 Argyrios Loules , Nektarios Vlahakis

We consider the propagation of a shock wave (SW) in the damped Toda lattice. The SW is a moving boundary between two semi-infinite lattice domains with different densities. A steadily moving SW may exist if the damping in the lattice is…

solv-int · 物理学 2016-09-08 J. Hietarinta , T. Kuusela , B. Malomed

A self-consistent, thermodynamic approach is employed to derive the wave energy of a magnetohydrodynamic system within the harmonic approximation and to obtain the familiar dispersion relation from the resulting equation of motion. The…

等离子体物理 · 物理学 2008-02-03 S. Chatterjee , P. S. Joarder

We study relativistic hydrodynamics in the presence of a non vanishing spin chemical potential. Using a variety of techniques we carry out an exhaustive analysis, and identify the constitutive relations for the stress tensor and spin…

高能物理 - 理论 · 物理学 2021-09-01 Domingo Gallegos , Umut Gursoy , Amos Yarom

Hydrodynamics is known to describe matter created in high energy heavy ion collisions well. Large deposition of energy by passing jets should create not only the sound waves, already discussed in literature, but also the shocks waves of…

高能物理 - 唯象学 · 物理学 2013-05-30 Edward Shuryak

We prove existence of standing waves for two quantum hydrodynamics systems with linear and nonlinear viscosity. Moreover, global existence of traveling waves is proved for the former without restrictions on the viscosity and dispersion…

偏微分方程分析 · 数学 2022-02-16 Delyan Zhelyazov

We investigate the linearized stability and causality properties of relativistic viscous superfluid hydrodynamics. The Landau-Lifshitz-Clark-Putterman formulation for the theory of relativistic viscous superfluids suffers from the same…

高能物理 - 理论 · 物理学 2025-04-28 Raphael E. Hoult , Ashish Shukla

The detection of gravitational waves has opened a new era for astronomy, allowing for the combined use of gravitational wave and electromagnetic emissions to directly probe the physics of compact objects, still poorly understood. So far,…

广义相对论与量子宇宙学 · 物理学 2023-01-05 Alessandro Lupi