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The acceleration of charged particles in the presence of a magnetic field and gravitational waves is under consideration. It is shown that the weak gravitational waves can cause the acceleration of low energy particles under appropriate…

Astrophysics · Physics 2009-11-13 G. Voyatzis , L. Vlahos , S. Ichtiaroglou , D. Papadopoulos

In the vicinity of merging neutron strar binaries or supernova remnants, gravitational waves can interact with the prevailing strong magnetic fields. The resulting partial conversion of gravitational waves into electromagnetic (radio) waves…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Joachim Moortgat

Supermassive black hole mergers with spin-flips accelerate energetic particles through their precessing relativistic jets, producing high energy neutrinos and finally gravitational waves. In star formation massive stars come in pairs,…

We propose a new approach to high-intensity laser-driven electron acceleration in a plasma. Here, we demonstrate that a plasma wave generated by a stimulated forward-scattering of an incident laser pulse can be in a longest acceleration…

Plasma Physics · Physics 2014-05-09 A. A. Rukhadze , S. P. Sadykova , T. G. Samkharadze , P. Gibbon

One of the most luminous explosions detected, gamma-ray bursts, especially the so-called long-duration bursts, most probably consist of an intrinsic core-collapse to a black hole inside a super massive star. We point out that this collapse…

High Energy Astrophysical Phenomena · Physics 2018-01-23 Antonios Nathanail , Mariafelicia De Laurentis

The transformation of powerful gravitational waves, created by the coalescence of massive black hole binaries, into electromagnetic radiation in external magnetic fields is revisited. In contrast to the previous calculations of the similar…

High Energy Astrophysical Phenomena · Physics 2017-09-19 Alexander Dolgov , Konstantin Postnov

The propagation of a gravitational wave (GW) through a magnetized plasma is considered. In particular, we study the excitation of fast magnetosonic waves (MSW) by a gravitational wave, using the linearized general-relativistic hydromagnetic…

Astrophysics · Physics 2014-10-13 D. Papadopoulos , N. Stergioulas , L. Vlahos , J. Kuijpers

We perform 2D and 3D kinetic simulations of reconnection-mediated turbulent flares in a magnetized electron-positron plasma, with weak and strong radiative cooling. Such flares can be generated around neutron stars and accreting black…

High Energy Astrophysical Phenomena · Physics 2021-11-17 J. Nättilä , A. M. Beloborodov

We study the interaction of a gravitational wave (GW) with a plasma that is strongly magnetized. The GW is considered a small disturbance, and the plasma is modeled by the general relativistic analogue of the induction equation of ideal MHD…

Astrophysics · Physics 2008-11-26 H. Isliker , L. Vlahos

It is shown that two circularly polarised Alfv\'en waves that propagate along the ambient magnetic field in an uniform plasma trigger non oscillating electromagnetic field components when they cross each other. The non-oscilliating field…

Earth and Planetary Astrophysics · Physics 2019-02-20 Fabrice Mottez

We undertake an investigation of particle acceleration in the context of non-linear electrodynamics. We deduce the maximum energy that an electron can gain in a non-linear density wave in a magnetised plasma, and we show that an electron…

High Energy Physics - Theory · Physics 2015-04-21 David A. Burton , Stephen P. Flood , Haibao Wen

Gravitational perturbations of neutron stars and black holes are well known sources of gravitational radiation. If the compact object is immersed in or endowed with a magnetic field, the gravitational perturbations would couple to…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Hajime Sotani , Kostas D. Kokkotas , Pablo Laguna , Carlos F. Sopuerta

An electron irradiated by a linearly polarized relativistic intensity laser pulse in a cylindrical plasma channel can gain significant energy from the pulse. The laser electric and magnetic fields drive electron oscillations in a plane…

Plasma Physics · Physics 2016-03-23 A. V. Arefiev , V. N. Khudik , A. P. L. Robinson , G. Shvets , L. Willingale

The evolution of globular cluster systems in some galaxies can be cause of merging of globulars in the very central regions. This high stellar density favours the growth of a central nucleus via swallowing of surrounding stars. The infall…

Astrophysics · Physics 2016-08-30 Roberto Capuzzo-Dolcetta , Paolo Miocchi

In magnetized plasmas gravitational and electromagnetic waves may interact coherently and exchange energy between themselves and with plasma flows. We derive the wave interaction equations for these processes in the case of waves…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Martin Servin , Gert Brodin

It is observed that the interaction of an intense ultra-short laser pulse with an overdense gas jet results in the pulse collapse and the deposition of a significant part of energy in a small and well localized volume in the rising part of…

Plasma Physics · Physics 2015-06-05 F. Sylla , A. Flacco , S. Kahaly , M. Veltcheva , A. Lifschitz , E. d'Humières , V. Tikhonchuk , V. Malka

Due to its ubiquitous presence, turbulence is often invoked to explain the origin of nonthermal particles in astrophysical sources of high-energy emission. With particle-in-cell simulations, we study decaying turbulence in…

High Energy Astrophysical Phenomena · Physics 2018-12-21 Luca Comisso , Lorenzo Sironi

In this paper we consider nonlinear interaction between gravitational and electromagnetic waves in a strongly magnetized plasma. More specifically, we investigate the propagation of gravitational waves with the direction of propagation…

General Relativity and Quantum Cosmology · Physics 2016-08-16 A. Källberg , G. Brodin , M. Bradley

The collapse of massive stars not only produces observable outbursts across the entire electromagnetic spectrum but, for Galactic (or near-Galactic) supernovae, detectable signals for ground-based neutrino and gravitational wave detectors.…

Astrophysics · Physics 2011-05-12 Chris L. Fryer , Daniel E. Holz , Scott A. Hughes

Neutron stars and black holes are the most compact astrophysical objects we can think of and as a consequence they are the main sources of gravitational waves. There are many astrophysically relevant scenarios in which these objects are…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Hajime Sotani , Kostas D. Kokkotas , Pablo Laguna , Carlos F. Sopuerta
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