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This short article highlights the unsolved problems of magnetic reconnection in collisionless plasma. The advanced in-situ plasma measurements and simulations enabled scientists to gain a novel understanding of magnetic reconnection. Still,…

Extended magnetohydrodynamics (XMHD) is a fluid plasma model generalizing ideal MHD by taking into account the impact of Hall drift effects and the influence of electron inertial effects. XMHD has a Hamiltonian structure which has received…

偏微分方程分析 · 数学 2024-06-26 Christophe Cheverry , Nicolas Besse

Ferromagnetic magnetohydrodynamics concerns the study of conducting fluids with intrinsic magnetisation under the influence of a magnetic field. It is a generalisation of the magnetohydrodynamical equations and takes into account the…

偏微分方程分析 · 数学 2024-12-09 Noah Vinod , Thanh Tran

Relativistic plasmas are central to the study of black hole accretion, jet physics, neutron star mergers, and compact object magnetospheres. Despite the need to accurately capture the dynamics of these plasmas and the implications for…

高能天体物理现象 · 物理学 2022-07-20 Elias R. Most , Jorge Noronha , Alexander A. Philippov

A general description for relativistic magnetic reconnection is given in terms of asymmetric inflow plasma conditions, such as plasma density, velocity magnetic field strength, and their respective thermal-inertial effects. In this work, we…

等离子体物理 · 物理学 2022-12-12 Maricarmen A. Winkler , Felipe A. Asenjo

The coupled equations that describe the effect of large-scale magnetic and velocity fields on forced high-diffusivity magnetohydrodynamic flows are investigated through an extension of mean field electrodynamics. Our results generalise…

太阳与恒星天体物理 · 物理学 2015-05-18 A. Courvoisier , D. W. Hughes , M. R. E. Proctor

We present three-dimensional solutions of the magnetohydrostatic equations in the co-rotating frame of reference outside a magnetized rigidly rotating cylinder. We make no symmetry assumption for the magnetic field, but to be able to make…

地球与行星天体物理 · 物理学 2009-11-30 Thomas Neukirch

We generalize the hybrid magneto-fluid model of a charged fluid interacting with an electromagnetic field to the dynamics of a relativistic hot fluid interacting with a non-Abelian field. The fluid itself is endowed with a non-Abelian…

高能物理 - 理论 · 物理学 2008-11-26 Bindu A. Bambah , Swadesh M. Mahajan , Chandrasekher Mukku

We present a general formulation of special-relativistic magnetohydrodynamics and derive exact radially self-similar solutions for axisymmetric outflows from strongly magnetized, rotating compact objects. We generalize previous work by…

天体物理学 · 物理学 2009-11-07 Nektarios Vlahakis , Arieh Konigl

A grand unified field $\mathcal{M}^{\mu\nu}$ is constructed from Maxwell's Field tensor and appropriately modified flow field, both non-minimally coupled to gravity, to analyze the dynamics of hot charged fluids in curved background…

广义相对论与量子宇宙学 · 物理学 2015-06-23 Chinmoy Bhattacharjee , Rupam Das , S. M. Mahajan

The fluid-scale evolution of relativistic magnetic reconnection is investigated by using two-fluid and magnetofluid simulation models. Relativistic two-fluid simulations demonstrate the meso-scale evolution beyond the kinetic scales, and…

高能天体物理现象 · 物理学 2011-10-17 Seiji Zenitani , Michael Hesse , Alex Klimas

We formulate dissipative magnetohydrodynamic equations for finite-temperature superfluid and superconducting charged relativistic mixtures, taking into account the effects of particle diffusion and possible presence of Feynman-Onsager…

高能天体物理现象 · 物理学 2021-12-15 Vasiliy A. Dommes , Mikhail E. Gusakov

The equilibrium theory of the 2D magnetohydrodynamic equations is derived, accounting for the full infinite hierarchies of conserved integrals. An exact description in terms of two coupled elastic membranes emerges, producing long-ranged…

流体动力学 · 物理学 2015-06-11 Peter B. Weichman

In this work we extend our previously developed formalism of Newtonian multi-fluid hydrodynamics to allow for coupling between the fluids and the electromagnetic and gravitational field. This is achieved within the convective variational…

流体动力学 · 物理学 2009-11-11 Reinhard Prix

The interplay of magnetic field and thermal vorticity in a relativistic ideal fluid might generate fluid vorticity during the fluid evolution provided the flow fields and the entropy density of the fluid is inhomogeneous…

核理论 · 物理学 2017-05-17 Ashutosh Dash , Victor Roy , Bedangadas Mohanty

Relative magnetic helicity is conserved by magneto-hydrodynamic evolution even in the presence of moderate resistivity. For that reason, it is often invoked as the most relevant constraint to the dynamical evolution of plasmas in complex…

太阳与恒星天体物理 · 物理学 2020-10-28 Gherardo Valori , Pascal Démoulin , Etienne Pariat , Anthony Yeates , Kostas Moraitis , Luis Linan

We derive the equations of motion of relativistic magnetohydrodynamics from the Boltzmann equation using the method of moments. We consider a locally electrically neutral system composed of two particle species with opposite charges, with…

高能天体物理现象 · 物理学 2026-02-25 Khwahish Kushwah , Gabriel Silveria Denicol

Magnetic reconnection is a leading mechanism for magnetic energy conversion and high-energy non-thermal particle production in a variety of high-energy astrophysical objects, including ones with relativistic ion-electron plasmas (e.g.,…

高能天体物理现象 · 物理学 2014-11-05 Mickaël Melzani , Rolf Walder , Doris Folini , Christophe Winisdoerffer , Jean M. Favre

We derive a number of solution for one-dimensional dynamics of relativistic magnetized plasma that can be used as benchmark estimates in relativistic hydrodynamic and magnetohydrodynamic numerical codes. First, we analyze the properties of…

高能天体物理现象 · 物理学 2015-06-03 Maxim Lyutikov , Samuel Hadden

We investigate the large scale evolution of a relativistic magnetic reconnection in an electron-positron pair plasma by a relativistic two-fluid magnetohydrodynamic (MHD) code. We introduce an inter-species friction force as an effective…

高能天体物理现象 · 物理学 2014-11-18 Seiji Zenitani , Michael Hesse , Alex Klimas