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Plasma high harmonics generation from an extremely intense short-pulse laser is explored by including the effects of ion motion, electron-ion collisions and radiation reaction force in the plasma dynamics. The laser radiation pressure…

Plasma Physics · Physics 2017-05-17 Suo Tang , Naveen Kumar , Christoph H. Keitel

The problem of electromagnetic emission generation in plasma with electron beams is relevant both for practical applications and for interpretation of radio emission processes in astrophysical systems. In this work, we consider the case of…

Plasma Physics · Physics 2023-08-08 Vladimir Annenkov , Evgeniia Volchok , Igor Timofeev

Electromagnetic counterparts of gravitational wave events usually involve neutron stars during compact binary coalescences. On the other hand, the community generally believes that electromagnetic emissions are hardly generated during the…

General Relativity and Quantum Cosmology · Physics 2021-11-09 Carlos A. Benavides-Gallego , Wen-Biao Han

The excitation of low frequency plasma waves in an expanding anisotropic cosmological model which contains a magnetic field frozen into the matter and pointing in the longitudinal direction is discussed. Using the exact equations governing…

Astrophysics · Physics 2009-11-07 Demetrios Papadopoulos , Loukas Vlahos , F. Paul Esposito

Plasma waves in the magnetosphere scatter electrons, causing them to precipitate into Earth's atmosphere, imparting their temporal characteristics to diffuse auroras. In a case study of conjugate radar and satellite observations, we…

Gamma-ray bursts, if they are generated in the process of interaction between relativistic strongly magnetized winds and an ambient medium, may be accompanied by very short pulses of low-frequency radio emission. The bulk of this emission…

Astrophysics · Physics 2007-05-23 Vladimir V. Usov , Jonathan I. Katz

The conversion of gravitational to electromagnetic waves in the presence of background magnetic fields is known as the inverse Gertsenshtein effect, analogous to the Primakoff effect for axions. Rephrasing this conversion as a classical…

General Relativity and Quantum Cosmology · Physics 2025-07-23 Valerie Domcke , Camilo Garcia-Cely , Sung Mook Lee

Gravitational wave generation by a strong shock wave in the interaction of high power laser with matter is analyzed in linear approximation of gravitational theory. The analytical formulas and estimates are derived for the metric…

General Relativity and Quantum Cosmology · Physics 2017-05-24 Hedvika Kadlecová , Ondřej Klimo , Stefan Weber , Georg Korn

Three-wave interactions of plasma waves propagating parallel to the mean magnetic field at frequencies below the electron cyclotron frequency are considered. We consider Alfv\'en--ion-cyclotron waves, fast-magnetosonic--whistler waves, and…

Astrophysics · Physics 2012-04-05 F. Spanier , R. Vainio

According to electrodynamical equations in curved spacetime we consider the coupling of a linearized weak gravitational wave (GW) to a Gaussian beam passing through a static magnetic field. It is found that unlike the properties of the…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Fang-Yu Li , Zhang-Han Wu , Yi Zhang

It is known that cosmic magnetic field, if present, can generate anisotropic stress in the plasma and hence, can act as a source of gravitational waves. These cosmic magnetic fields can be generated at very high temperature, much above…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-25 Sampurn Anand , Jitesh R. Bhatt , Arun Kumar Pandey

Gravitational waves are expected to be radiated by supermassive black hole binaries formed during galaxy mergers. A stochastic superposition of gravitational waves from all such binary systems will modulate the arrival times of pulses from…

We intend to propose an experimental sketch to detect gravitational waves (GW) directly, using an cold electronic plasma in a long pipe. By considering an cold electronic plasma in a long pipe, the Maxwell equations in 3+1 formalism will be…

General Relativity and Quantum Cosmology · Physics 2015-06-17 O. Jalili , S. Rouhani , M. V. Takook

Motion of test particles in the gravitational field associated with an electromagnetic plane wave is investigated. The interaction with the radiation field is modeled by a force term {\it \`a la} Poynting-Robertson entering the equations of…

General Relativity and Quantum Cosmology · Physics 2015-06-22 Donato Bini , Andrea Geralico

The accumulation of electrons and positrons in the vacuum magnetosphere of a neutron star with a surface magnetic field of B~10^12 G is considered. It is shown that particles created in the magnetosphere or falling into the magnetosphere…

High Energy Astrophysical Phenomena · Physics 2010-12-17 Ya. N. Istomin , D. N. Sob'yanin

The properties of the forced oscillations of electron-positron plasma (EPP) generated from vacuum under the action of a short laser pulse are considered. Calculating the density of the conduction and polarization currents within the quantum…

Plasma Physics · Physics 2021-05-12 I. A. Aleksandrov , A. D. Panferov , S. A. Smolyansky

The recent Parker Solar Probe (PSP) observations of type III radio bursts show that the effects of finite background magnetic field can be an important factor in the interpretation of data. In the present paper, the effects of background…

Solar and Stellar Astrophysics · Physics 2022-01-19 Sang-Yun Lee , Peter H. Yoon , Ensang Lee , Weichao Tu

Observations of the solar radio emission in the microwave frequency range show fine structures consisting of a number of the almost parallel narrow frequency bands. We interpret these bands as the cyclotron harmonics plasma emission. This…

Astrophysics · Physics 2015-06-24 V. G. Ledenev , M. Karlicky , Y. Yan , Q. Fu

We investigate the generation of electromagnetic and gravitational radiation in the vicinity of a perturbed Schwarzschild black hole. The gravitational perturbations and the electromagnetic field are studied by solving the Teukolsky master…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Juan Carlos Degollado , Victor Gualajara , Claudia Moreno , Darío Núñez

Turbulence in highly magnetized plasma can be relativistic and induce an electric field comparable to the background magnetic field. Such a strong electric field can affect the emission process of non-thermal electrons. As the first step…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Ryota Goto , Katsuaki Asano
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