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Numerous sources produce the ionization impact on the planetary atmosphere. The tropospheric cloudiness therewith is originated at such altitudes, which coincide with places of the maximum of the atmospheric ionization that caused by space…

等离子体物理 · 物理学 2024-02-06 N. I. Izhovkina , S. N. Artekha , N. S. Erokhin , L. A. Mikhailovskaya

Aims: Emission of radio waves from plasmas through plasma emission with fundamental and harmonic frequencies is a familiar process known from solar type II radio bursts. Current models assume the existence of counterstreaming electron beam…

太阳与恒星天体物理 · 物理学 2014-05-08 Urs Ganse , Patrick Kilian , Felix Spanier , Rami Vainio

It is argued that, in a hot plasma interacting with thermal radiation, there exist the radiation-induced solitary waves different from the types of nonlinear waves in plasmas known so far. There are extensive observational evidence for the…

等离子体物理 · 物理学 2007-05-23 F. V. Prigara

In this paper, electromagnetic emissions produced in a thin beam-plasma system are studied using two-dimensional particle-in-cell simulations. For the first time, the problem of emission generation in such a system is considered in the…

等离子体物理 · 物理学 2016-05-25 V. V. Annenkov , I. V. Timofeev , E. P. Volchok

A theoretical analysis for astrophysics-oriented laser-matter interaction experiments in the presence of a strong ambient magnetic field is presented. It is shown that the plasma collision in the ambient magnetic field implies significant…

等离子体物理 · 物理学 2015-06-18 Philipp Korneev , Emmanuel d'Humières , Vladimir Tikhonchuk

During Type III solar radio bursts, electromagnetic waves are radiated at plasma frequency $\omega_p$ and its harmonics by electrostatic wave turbulence generated by electron beams ejected by Sun in randomly inhomogeneous solar wind and…

太阳与恒星天体物理 · 物理学 2025-08-12 Catherine Krafft , Alexandr Volokitin , Francisco Javier Polanco-Rodríguez , Philippe Savoini

Our universe is permeated with interstellar plasma, which prevents propagation of low-frequency electromagnetic waves. Here, we show that two dramatic consequences arise out of such suppression; (i) if plasma permeates the light ring of a…

广义相对论与量子宇宙学 · 物理学 2024-07-03 Enrico Cannizzaro , Thomas F. M. Spieksma , Vitor Cardoso , Taishi Ikeda

The problem of beam propagation in a plasma with small scale and low intensity inhomogeneities is investigated. It is shown that the electron beam propagates in a plasma as a beam-plasma structure and is a source of Langmuir waves. The…

太阳与恒星天体物理 · 物理学 2019-04-12 Eduard P. Kontar

Dense micron-sized electron plasmas, such as those generated upon irradiation of nanostructured metallic surfaces by intense femtosecond laser pulses, constitute a rich playground to study light-matter interactions, many-body phenomena, and…

Type-III-burst radio signals can be mimicked in the laboratory via laser-plasma interaction. Instead of an electron beam generating Langmuir waves (LW) in the interplanetary medium, the LWs are created by a laser interacting with a…

等离子体物理 · 物理学 2021-04-14 F. Pérez , F. Amiranoff , C. Briand , S. Depierreux , M. Grech , L. Lancia , P. Loiseau , J. -R. Marquès , C. Riconda , T. Vinci

Magnetic fields in rotating and radiating astrophysical plasma can be produced due to a radiative interaction between plasma layers moving relative to each other. The efficiency of current drive, and with it the associated dynamo effect, is…

等离子体物理 · 物理学 2017-09-22 Vadim R. Munirov , Nathaniel J. Fisch

A new nonlinear electromagnetic wave mode in a magnetized plasma is predicted. Its existence depends on the interaction of an intense circularly polarized electromagnetic wave with a plasma, where quantum electrodynamical photon--photon…

天体物理学 · 物理学 2018-04-04 M. Marklund , P. K. Shukla , L. Stenflo , G. Brodin , M. Servin

This article introduces a physically realistic model for explaining how electromagnetic waves can be internally generated, propagate and interact in strongly magnetized plasmas or in nuclear magnetic resonance experiments. It studies high…

偏微分方程分析 · 数学 2020-09-04 Remi Carles , Christophe Cheverry

It is pointed out that electron thermal fluctuations can couple with the ion acoustic mode in an inhomogeneous plasma to generate a low frequency ion time scale electromagnetic wave. This electromagnetic wave can become unstable if the…

等离子体物理 · 物理学 2015-05-13 Hamid Saleem

The possibility of generating diffuse radiation in extended astronomical media by plasma turbulence is investigated under the assumption that the turbulence can be understood as an ensemble of small-scale magnetic filaments (narrow current…

空间物理 · 物理学 2021-09-21 R. A. Treumann , Wolfgang Baumjohann

The existence of large--scale magnetic fields in the universe has led to the observation that if gravitational waves propagating in a cosmological environment encounter even a small magnetic field then electromagnetic radiation is produced.…

广义相对论与量子宇宙学 · 物理学 2010-04-29 C. Barrabes , P. A. Hogan

An Electromagnetic (EM) pulse falling on a plasma medium from vacuum can either reflect or propagate inside the plasma depending on whether it is overdense or underdense. In a magnetised plasma, however, there are usually several pass and…

等离子体物理 · 物理学 2021-07-26 Devshree Mandal , Ayushi Vashistha , Amita Das

The sounds accompanying electrophonic burster meteors are characteristically described as being akin to short duration ``pops'' and staccato--like ``clicks''. As a phenomenon distinct from the enduring electrophonic sounds that occasionally…

天体物理学 · 物理学 2007-05-23 M. Beech , L. Foschini

Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-power electromagnetic emission at the second harmonic of the…

等离子体物理 · 物理学 2021-02-24 E. Volchok , V. Annenkov , I. Timofeev

The nonlinear propagation of low-frequency circularly polarized waves in a magnetized dusty plasma is analyzed. It is found that wave steepening and shock formation can take place due to the presence of nonlinear quantum vacuum effects,…

天体物理学 · 物理学 2008-11-26 M. Marklund , D. D. Tskhakaya , P. K. Shukla