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Related papers: Electrodynamics of pulsar magnetospheres

200 papers

Confronting theoretical models with observations of thermal radiation emitted by neutron stars is one of the most important ways to understand the properties of both, superdense matter in the interiors of the neutron stars and dense…

High Energy Astrophysical Phenomena · Physics 2015-12-25 A. Y. Potekhin , A. De Luca , J. A. Pons

The physics of the pulsar inner magnetosphere remains poorly constrained by observations. Although about 2000 pulsars have been discovered to date, little is known about their emission mechanism. Large vacuum gaps probably exist and a…

Astrophysics · Physics 2009-11-11 J. Petri

Recent advances in numerical algorithms and computational power have enabled first-principles simulations of pulsar magnetospheres using Particle-in-Cell (PIC) techniques. These ab-initio simulations seem to indicate that pair creation…

High Energy Astrophysical Phenomena · Physics 2020-02-05 Alexander Y. Chen , Fabio Cruz , Anatoly Spitkovsky

Neutron stars can harbor extremely strong magnetic fields, yet the structure and stability of their magnetic field configuration remain poorly understood. Observations of pulsars indicate that the large-scale external field is predominantly…

High Energy Astrophysical Phenomena · Physics 2026-05-25 Aurora Capobianco , William Cook , Sebastiano Bernuzzi , Brynmor Haskell , Jacob Fields

A new model for the high-energy emission from pulsars is developed by considering charged particle motion in the fields of a spinning, highly magnetised and conducting sphere in vacuum. A generally applicable approximation to the particle…

Astrophysics · Physics 2015-06-24 M. G. Higgins , R. N. Henriksen

We demonstrate that magnetospheric interactions between merging neutron stars (NSs) generate dual-jetted current outflows, analogous to the Alfv\'{e}n wings observed during planetary interactions in the Solar System. Using 3D relativistic…

High Energy Astrophysical Phenomena · Physics 2026-02-19 Praveen Sharma , Slava G. Turyshev , Maxim V. Barkov , Maxim Lyutikov

Polar magnetospheric gaps consume a fraction of the electric potential that develops accross open field lines. This effect modifies significantly the structure of the axisymmetric pulsar magnetosphere. We present numerical stead-state…

Astrophysics · Physics 2009-11-11 Ioannis Contopoulos

The experimental study of the dynamics of neutral electron-positron beams is an emerging area of research, enabled by the recent results on the generation of this exotic state of matter in the laboratory. Electron-positron beams and plasmas…

The nature of fore-wake excitations created by a charged object moving in a magnetized plasma is investigated using particle-in-cell simulations. Our studies establish for the first time the existence of precursor magneto-sonic solitons…

Plasma Physics · Physics 2020-08-26 Atul Kumar , Abhijit Sen

Topical problems in the physics of and basic facts about neutron stars are reviewed. The observational manifestations of neutron stars, their core and envelope structure, magnetic fields, thermal evolution, and masses and radii are briefly…

Solar and Stellar Astrophysics · Physics 2011-06-23 A. Y. Potekhin

Four significant events of rapid $^{14}$C increase have taken place within the past several thousand years. The physical origin of these rapid increases is still a mystery but must be associated with extremely energetic cosmic processes.…

High Energy Astrophysical Phenomena · Physics 2020-01-08 F. Y. Wang , Xinyu Li , D. O. Chernyshov , C. Y. Hui , G. Q. Zhang , K. S. Cheng

Millisecond pulsars are rapidly rotating neutron stars where general relativity plays a strong role in the propagation of light from the neutron star to observer. The observed X-ray pulse shapes carry information on the mass, radius and…

High Energy Astrophysical Phenomena · Physics 2010-03-29 Denis Leahy

Neutron stars are rich laboratories of multiple branches of modern physics. These include gravitational physics, nuclear and particle physics, (quantum) electrodynamics, and plasma astrophysics. In this chapter, we present the pioneering…

High Energy Astrophysical Phenomena · Physics 2023-04-05 Joonas Nättilä , Jari J. E. Kajava

This paper is devoted to studying of dispersion of waves in the magnetized plasma with the spin and exploring of new methods of the generation wave in the plasma. We consider the dispersion of waves, existed in the plasma in consequence of…

Plasma Physics · Physics 2012-12-04 P. A. Andreev , L. S. Kuz'menkov

Time-dependent cascades of electron-positron pairs are thought to be the main source of plasma in pulsar magnetospheres and a primary ingredient to explain the nature of pulsar radio emission, a longstanding open problem in high-energy…

High Energy Astrophysical Phenomena · Physics 2022-05-18 Fábio Cruz , Thomas Grismayer , Simon Iteanu , Paolo Tortone , Luis O. Silva

We consider the polarization behaviour of radio waves propagating through an ultrarelativistic highly magnetized electron-positron plasma in a pulsar magnetosphere. The rotation of magnetosphere gives rise to the wave mode coupling in the…

Astrophysics · Physics 2009-10-31 Y. E. Lyubarskii , S. A. Petrova

The early 21st century witnesses a dramatic rise in the study of thermal radiation of neutron stars. Modern space telescopes have provided a wealth of valuable information which, when properly interpreted, can elucidate the physics of…

Solar and Stellar Astrophysics · Physics 2016-01-06 A. Y. Potekhin

The available data on isolated X-ray pulsars, their wind nebulae, and the supernova remnants which are connected to some of these sources are analyzed. It is shown that electric fields of neutron stars tear off charged particles from the…

Astrophysics · Physics 2009-11-13 Sevinc O. Tagieva , Askin Ankay , Arzu M. Ankay

The magnetic and thermal evolution of neutron stars is a very complex process with many nonlinear interactions. For a decent understanding of neutron star physics, these evolutions cannot be considered isolated. A brief overview is…

Solar and Stellar Astrophysics · Physics 2017-09-26 Ulrich Geppert

This paper is the first in a series aimed at understanding the long-term evolution of neutron star magnetic fields. We model the stellar matter as an electrically neutral and lightly ionized plasma composed of three moving particle species:…

Astrophysics · Physics 2009-11-13 J. Hoyos , A. Reisenegger , J. A. Valdivia