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相关论文: Wave Properties of Isothermal Magneto-Rotational F…

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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

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

In this paper, we study wave properties of isothermal plasma for the Schwarzschild de-Sitter black hole in a Veselago medium. We use ADM 3+1 formalism to formulate general relativistic magnetohydrodynamical (GRMHD) equations for the…

综合物理 · 物理学 2015-06-03 M. Sharif , Ifra Noureen

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 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 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

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

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

This paper is devoted to investigate the cold plasma wave properties outside the event horizon of the Schwarzschild planar analogue. The dispersion relations are obtained from the corresponding Fourier analyzed equations for non-rotating…

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

MHD waves can be responsible for plasma fluctuations and short-term variations of the pulsar emission. We consider the properties of plane and cylindrical waves that can exist in the force-free magnetosphere. Waves are considered by means…

太阳与恒星天体物理 · 物理学 2015-06-03 V. Urpin

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 magnetohydrodynamic equations describing an inviscid, fully ionized plasma in the vicinity of a rotating black hole are derived from a two-component plasma theory within the framework of the 3+1 split of the Kerr metric. Of central…

天体物理学 · 物理学 2020-11-25 Ramon Khanna

The dispersion properties of elliptically polarized electromagnetic (EM) waves in a magnetized electron-positron-pair (EP-pair) plasma are studied with the effects of particle dispersion associated with the Bohm potential, the Fermi…

等离子体物理 · 物理学 2016-07-12 M. Shahmansouri , A. P. Misra

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

The propagation of radio emission in pulsar magnetospheres is discussed. We follow a kinematics model in order to derive dispersion relations for electromagnetic oscillations and transversal waves, propagating in a cold moving plasma. We…

天体物理学 · 物理学 2009-11-13 Ericsson D. Lopez

A dispersion relation for electromagnetic wave propagation in a strongly magnetized cold plasma is deduced, taking photon-photon scattering into account. It is shown that the combined plasma and quantum electrodynamic effect is important…

天体物理学 · 物理学 2008-11-26 G. Brodin M. Marklund , L. Stenflo , P. K. Shukla

Quantum plasmas in astrophysical environments are abundant due to extreme electric, magnetic, and gravitational fields. These plasmas can be most clearly observed in neutron stars, white dwarfs, brown dwarfs, red dwarfs, accretion disks of…

等离子体物理 · 物理学 2025-04-08 Atherv Saxena , Sudeep Nadgambe , Rajan Mishra , Punit Kumar

We derive a generalized linear dispersion relation of waves in a strongly magnetized, compressible, homogeneous and isotropic quasineutral plasma. Starting from a two fluid model, describing distinguishable electron and ion fluids, we…

空间物理 · 物理学 2010-05-27 Dastgeer Shaikh , B. Dasgupta , P. K. Shukla

Gravitational waves (GW) propagating through a magnetised plasma excite low-frequency magnetohydrodynamic (MHD) waves. In this paper we investigate whether these waves can produce observable radio emission at higher frequencies by…

天体物理学 · 物理学 2009-11-11 Joachim Moortgat , Jan Kuijpers
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