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In regions with strongly varying electron density, radio emission can be magnified significantly by plasma lensing. In the presence of magnetic fields, magnification in time and frequency will be different for two circular polarizations. We…

High Energy Astrophysical Phenomena · Physics 2019-02-13 Dongzi Li , Fang Xi Lin , Robert Main , Ue-Li Pen , Marten H. van Kerkwijk , I-Sheng Yang

(Abr) The origin and structure of magnetic fields in Gamma-Ray Burst (GRB) fireball plasmas are two of the most important open questions in all GRB models. We show that the structure and strength of the magnetic field may be constrained by…

Astrophysics · Physics 2014-10-13 Amir Sagiv , Eli Waxman , Abraham Loeb

Frequency-dependent polarization properties provide crucial insights into the radiation mechanisms and magnetic environments of fast radio bursts (FRBs). We explore an analytical solution of radiative transfer of the polarization properties…

High Energy Astrophysical Phenomena · Physics 2025-04-11 Wei-Yang Wang , Xiaohui Liu , Dongzi Li , Bing Zhang , Chen-Hui Niu , Jifeng Liu , Renxin Xu , Weiwei Zhu , Kejia Lee

The magnetosphere of a pulsar is composed of relativistic plasmas streaming along the magnetic field lines and corotating with the pulsar. We study the intrinsic Faraday rotation in the pulsar magnetosphere by critically examining the wave…

Solar and Stellar Astrophysics · Physics 2015-05-28 Chen Wang , Jinlin Han , Dong Lai

Strong magnetic fields and plasmas are intrinsically linked in both terrestrial laboratory experiments and in space phenomena. One of the most profound consequences of that is the change in relationship between the frequency and the wave…

We propose a novel idea for the coherent intense millisecond radio emission of cosmic fast radio bursts (FRBs), which have recently been identified with flares from a magnetar. Motivated by the conventional paradigm of Type III solar radio…

High Energy Astrophysical Phenomena · Physics 2023-11-16 Edison Liang

Radio emission from magnetars provides a unique probe of the relativistic, magnetized plasma within the near-field environment of these ultra-magnetic neutron stars. The transmitted waves can undergo birefringent and dispersive propagation…

The number of identified Fast Radio Bursts (FRBs) is increasing rapidly with current and future facilities. Strongly lensed FRBs are expected to be found as well, which can provide precise time delays and thus have rich applications in…

High Energy Astrophysical Phenomena · Physics 2022-08-31 Xinzhong Er , Shude Mao

Fast radio bursts (FRBs) are bright extragalactic transients likely produced by magnetars. We study the propagation of FRBs in magnetar winds, assuming that the wind is strongly magnetized and composed of electron-positron pairs. We focus…

High Energy Astrophysical Phenomena · Physics 2024-10-23 Emanuele Sobacchi , Masanori Iwamoto , Lorenzo Sironi , Tsvi Piran

The non-linear electrodynamics influence of pulsar magnetic field on the electromagnetic pulse polarization is discussed from the point of observation interpretation. The calculations of pulsar magnetic field impact on electromagnetic pulse…

High Energy Astrophysical Phenomena · Physics 2017-09-13 V. I. Denisov , V. A. Sokolov , S. I. Svertilov

We study the propagation of electromagnetic waves in tenuous plasmas, where the wave frequency, $\omega_0$, is much larger than the plasma frequency, $\omega_{\rm P}$. We show that in pair plasmas nonlinear effects are weak for $a_0 \ll…

High Energy Astrophysical Phenomena · Physics 2024-09-09 Emanuele Sobacchi , Masanori Iwamoto , Lorenzo Sironi , Tsvi Piran

We compute electromagnetic wave propagation through the magnetosphere of a magnetar. The magnetosphere is modeled as the QED vacuum and a cold, strongly magnetized plasma. The background field and electromagnetic waves are treated…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Dan Mazur , Jeremy S. Heyl

The spatio-temporal evolution of nonlinear oscillations in multi-species plasma is revisited to provide more insight into the physics of phase mixing by constructing two sets of nonlinear solutions up to the second order. The first solution…

Plasma Physics · Physics 2017-08-04 Prabal Singh Verma

The propagation of emissions in the relativistic streaming pair plasmas of pulsars and magnetars is studied within the framework of Gordon effective metric theory, and the effect of vacuum polarization on the radiation spectra is examined…

Plasma Physics · Physics 2013-03-04 Yuee Luo , Zhigang Bu , Wenbo Chen , Hehe Li , Peiyong Ji

Radio signals propagating through inhomogeneous plasma media deviate from their original paths, producing frequency-dependent magnification effects. In this paper, after reviewing the classical plasma-lensing theory, we have found a…

High Energy Astrophysical Phenomena · Physics 2025-09-26 Yu-Bin Wang , Xia Zhou , Abdusattar Kurban

We predict a non-thermal magneto-optical effect for magnetic insulators subject to intense light carrying orbital angular momentum (OAM). Using a classical approach to second harmonic generation in non-linear media with specific symmetry…

Mesoscale and Nanoscale Physics · Physics 2014-10-17 Thomas Bose , Jamal Berakdar

The Washimi and Karpman ponderomotive interaction due to electromagnetic waves propagation is investigated for unmagnetized plasmas described by a isotropic Kappa distribution. We performed a brief analysis of the influence of the Kappa…

Plasma Physics · Physics 2023-05-10 Joaquín Espinoza-Troni , Felipe A Asenjo , Pablo S Moya

Fast radio bursts (FRBs) are bright, short-duration radio transients with very high brightness temperatures implying highly coherent emission. We suggest that the FRBs are caused by the self-focusing of an electron beam interacting with an…

High Energy Astrophysical Phenomena · Physics 2020-03-18 Mustafa Doğan , Kazım Yavuz Ekşi

The gyrotropic properties of a rotating magnetized plasma are derived analytically. Mechanical rotation leads to a new cutoff for wave propagation along the magnetic field and polarization rotation above this cutoff is the sum of the…

Plasma Physics · Physics 2020-11-25 R. Gueroult , J. -M. Rax , N. J. Fisch

Oblique propagation and head-on collisions of solitary structures is studied in a dense magnetized plasma comprised of relativistic ultra-cold electrons and positrons and positive dynamic ions using conventional extended multi-scales…

Solar and Stellar Astrophysics · Physics 2015-05-27 M. Akbari-Moghanjoughi