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相关论文: Complex Wave Numbers in the Vicinity of the Schwar…

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We have studied the wave properties of the cold and isothermal plasma in the vicinity of the Schwarzschild black hole event horizon. The Fourier analyzed perturbed 3+1 GRMHD equations are taken on the basis of which the complex dispersion…

广义相对论与量子宇宙学 · 物理学 2009-11-13 M. Sharif , G. Mustafa

The behavior of isothermal plasma waves has been analyzed near the Schwarzschild horizon. We consider a non-rotating background with non-magnetized and magnetized plasmas. The general relativistic magnetohydrodynamical equations for the…

广义相对论与量子宇宙学 · 物理学 2011-08-31 M. Sharif , Umber Sheikh

We apply the ADM 3+1 formalism to derive the general relativistic magnetohydrodynamic equations for cold plasma in spatially flat Schwarzschild metric. Respective perturbed equations are linearized for non-magnetized and magnetized plasmas…

广义相对论与量子宇宙学 · 物理学 2008-11-26 M. Sharif , Umber Sheikh

In this paper we examine the wave properties of hot plasma living in Schwarzschild magnetosphere. The 3+1 GRMHD perturbation equations are formulated for this scenario. These equations are Fourier analyzed and then solved numerically to…

广义相对论与量子宇宙学 · 物理学 2014-11-20 M. Sharif , Asma Rafique

The 3+1 GRMHD equations for Schwarzschild spacetime in Rindler coordinates with isothermal state of plasma are formulated. We consider the cases of non-rotating and rotating backgrounds with non-magnetized and magnetized plasmas. For these…

广义相对论与量子宇宙学 · 物理学 2008-11-26 M. Sharif , Umber Sheikh

This paper investigates wave properties of hot plasma in a Veselago medium. For the Schwarzschild black hole, the $3+1$ GRMHD equations are re-formulated which are linearly perturbed and then Fourier analyzed for rotating (non-magnetized…

广义相对论与量子宇宙学 · 物理学 2015-03-17 M. Sharif , Noureen Mukhtar

We investigate transverse electromagnetic waves propagating in a plasma influenced by the gravitational field of the Schwarzschild-de Sitter black hole. Applying 3+1 spacetime split we derive the relativistic two-fluid equations to take…

广义相对论与量子宇宙学 · 物理学 2009-05-29 M. Hossain Ali , M. Atiqur Rahman

We re-formulate the 3+1 GRMHD equations for the Schwarzschild black hole in a Veselago medium. Linear perturbation in rotating (non-magnetized and magnetized) plasma is introduced and their Fourier analysis is considered. We discuss wave…

广义相对论与量子宇宙学 · 物理学 2011-01-17 M. Sharif , Noureen Mukhtar

This paper is devoted to investigate the cold plasma wave properties. The analysis has been restricted to the neighborhood of the pair production region of the Kerr magnetosphere. The Fourier analyzed general relativistic…

广义相对论与量子宇宙学 · 物理学 2010-11-03 M. Sharif , Umber Sheikh

Waves propagating in the relativistic electron-positron or ions plasma are investigated in a frame of two-fluid equations using the 3+1 formalism of general relativity developed by Thorne, Price and Macdonald (TPM). The plasma is assumed to…

广义相对论与量子宇宙学 · 物理学 2012-11-12 M. Atiqur Rahman

The 3+1 formalism of Thorne, Price and Macdonald has been used to derive the linear two-fluid equations describing transverse and longitudinal waves propagating in the two-fluid ideal collisionless plasmas surrounding a Schwarzschild black…

广义相对论与量子宇宙学 · 物理学 2012-11-12 M. Atiqur Rahman

In this paper, the isothermal plasma wave properties in the neighborhood of the pair production region for the Kerr black hole magnetosphere are discussed. We have considered the Fourier analyzed form of the perturbed general relativistic…

广义相对论与量子宇宙学 · 物理学 2015-05-14 M. Sharif , Umber Sheikh

In this paper, we consider a massless field, with spin j, in interaction with a Schwarzschild black hole in four dimensions, focusing mainly our study on the s-wave scattering. First, using a Fourier analysis, we show that one can have a…

广义相对论与量子宇宙学 · 物理学 2013-02-07 Bernard Raffaelli

Linearly polarized solitary waves, arising from the interaction of an intense laser pulse with a plasma, are investigated. New localized structures, in the form of exact \Changes{numerical} nonlinear solutions of the one-dimensional…

等离子体物理 · 物理学 2015-03-11 G. Sánchez-Arriaga , E. Siminos , V. Saxena , I. Kourakis

We study the properties of the outgoing gravitational wave produced when a non-spinning black hole is excited by an ingoing gravitational wave. Simulations using a numerical code for solving Einstein's equations allow the study to be…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Yosef Zlochower , Roberto Gomez , Sascha Husa , Luis Lehner , Jeffrey Winicour

Astrophysical black holes are usually surrounded by an accretion disk. At least parts of these accretion disks consist of a plasma in which light rays with different energies are dispersed. However, we usually do not know the exact…

广义相对论与量子宇宙学 · 物理学 2026-05-21 Torben C. Frost

Following recent work, we discuss waves in a warm ideal two-fluid plasma consisting of electrons and ions starting from a completely general, ideal two-fluid dispersion relation. The plasma is characterised by five variables: the electron…

等离子体物理 · 物理学 2020-12-18 Jordi De Jonghe , Rony Keppens

The 3+1 spacetime formulation of general relativity is used to investigate the transverse waves propagating in a plasma influenced by the gravitational field of Reissner-Nordstrom black hole, as explained in an earlier paper, to take…

广义相对论与量子宇宙学 · 物理学 2011-01-25 Md. Atiqur Rahman

We investigate the wave properties of the Kerr black hole with isothermal plasma using 3+1 ADM formalism. The corresponding Fourier analyzed perturbed GRMHD equations are used to obtain the dispersion relations. These relations lead to the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 M. Sharif , Umber Sheikh

Using a two-fluid approach, we consider the properties of relativistically nonlinear (arbitrary $a_0$), circularly polarized \EM\ waves propagating along magnetic field in electron-ion and pair plasmas. Dispersion relations depend on how…

高能天体物理现象 · 物理学 2026-04-15 Maxim Lyutikov
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