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Related papers: Time Evolution of Pulsar Magnetosphere I - An Impl…

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We present a statistical study of pulsars and millisecond pulsars (MSPs) based on multiwavelength observations in the Galactic Field and Globular Clusters. We examine their emission properties, timing behavior, and spatial distributions,…

High Energy Astrophysical Phenomena · Physics 2026-02-10 Maria Rah , Areg Mickaelian , Francesco Flammini Dotti , Rainer Spurzem

We present 3D global kinetic pulsar magnetosphere models, where the charged particle trajectories and the corresponding electromagnetic fields are treated self-consistently. For our study, we have developed a cartesian 3D relativistic…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Constantinos Kalapotharakos , Gabriele Brambilla , Andrey Timokhin , Alice K. Harding , Demosthenes Kazanas

The main contribution to the pulsar power can be calculated by assuming a rotating magnetically-dominated magnetosphere described by the force-free approximation. Although this simple model has been used thoroughly to study pulsar…

High Energy Astrophysical Phenomena · Physics 2018-07-18 Federico Carrasco , Carlos Palenzuela , Oscar Reula

Pulsars are famous for their rotational stability. Most of them steadily spin down and display a highly repetitive pulse shape. But some pulsars experience timing irregularities such as nulling, intermittency, mode changing and timing…

High Energy Astrophysical Phenomena · Physics 2015-09-23 Lev Arzamasskiy , Alexander Philippov , Alexander Tchekhovskoy

Global particle-in-cell (PIC) simulations of pulsar magnetospheres are performed with a volume, surface and pair production-based plasma injection schemes to systematically investigate the transition between electrosphere and force-free…

High Energy Astrophysical Phenomena · Physics 2024-10-16 Fábio Cruz , Thomas Grismayer , Alexander Y. Chen , Anatoly Spitkovsky , Ricardo A. Fonseca , Luis O. Silva

Pulsar magnetospheres are shaped by ultra-relativistic electron/positron plasmas flowing in a strong magnetic field and subject to strong gravitational fields. The former induces magnetospheric currents and space charges responsible for the…

High Energy Astrophysical Phenomena · Physics 2015-12-09 J. Petri

A pseudo-spectral method with an absorbing outer boundary is used to solve a set of the time-dependent force-free equations. In the method, both electric and magnetic fields are expanded in terms of the vector spherical harmonic (VSH)…

High Energy Astrophysical Phenomena · Physics 2015-12-16 Gang Cao , Li Zhang , Sineng Sun

We present the structure of the 3D ideal MHD pulsar magnetosphere to a radius ten times that of the light cylinder, a distance about an order of magnitude larger than any previous such numerical treatment. Its overall structure exhibits a…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Constantinos Kalapotharakos , Ioannis Contopoulos , Demos Kazanas

We present the first self-consistent global simulations of pulsar magnetospheres with operating $e^\pm$ discharge. We focus on the simple configuration of an aligned or anti-aligned rotator. The star is spun up from zero (vacuum) state to a…

High Energy Astrophysical Phenomena · Physics 2014-10-28 Alexander Y. Chen , Andrei M. Beloborodov

We investigate in details properties of stationary force-free magnetosphere of aligned rotator assuming the last closed field line lying in equatorial plane at large distances from pulsar. The pulsar equations is solved numerically using…

Astrophysics · Physics 2009-11-11 A. N. Timokhin

We perform 2.5D axisymmetric simulations of the pulsar magnetosphere (aligned dipole rotator) using the charge conservative, relativistic, electromagnetic particle in cell code PICsar. Particle in cell codes are a powerful tool to use for…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Mikhail Alexander Belyaev

The purpose of this paper is to suggest how detailed single-pulse observations of ``slow'' radio pulsars may be utilized to construct an empirical model for their emission. It links the observational synthesis developed in a series of…

Astrophysics · Physics 2009-11-07 Joanna M. Rankin , Geoffrey A. E. Wright

We propose an analytical 3-D model of the open field-line region of a neutron star (NS) magnetosphere. We construct an explicit analytic solution for arbitrary obliquity (angle between the rotation and magnetic axes) incorporating the…

Astrophysics · Physics 2009-11-11 Alex G. Muslimov , Alice K. Harding

We present the first 3D fully coupled magneto-thermal simulations of neutron stars (including the most realistic background structure and microphysical ingredients so far) applied to a very complex initial magnetic field topology in the…

High Energy Astrophysical Phenomena · Physics 2023-06-28 Clara Dehman , Daniele Viganò , Stefano Ascenzi , Jose A. Pons , Nanda Rea

The main issue of the pulsar magnetosphere is how the rotation power is converted into both particle beams which causes pulsed emissions, and a highly relativistic wind of electron-positron plasmas which forms surrounding nebulae shining in…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Tomohide Wada , Shinpei Shibata

Following the basic principles of a charge separated pulsar magnetosphere \citep{goldreich1969}, we consider the magnetosphere be stationary in space, instead of corotating, and the electric field be uploaded from the potential distribution…

High Energy Astrophysical Phenomena · Physics 2015-07-01 K. H. Tsui

The particle-in-cell approach has proven effective at modeling neutron star and black hole magnetospheres from first principles, but global simulations are plagued with an unrealistically small separation between the scales where…

High Energy Astrophysical Phenomena · Physics 2024-10-09 Adrien Soudais , Benoît Cerutti , Ioannis Contopoulos

This second paper in our series investigates the evolutionary mechanisms that shape pulsars and millisecond pulsars (MSPs) across different astrophysical environments. We focus on the physical processes that govern spin evolution, magnetic…

High Energy Astrophysical Phenomena · Physics 2026-02-10 Maria Rah , Rainer Spurzem , Francesco Flammini Dotti , Areg Mickaelian

Soon after the discovery of radio pulsars in 1967, the pulsars are identified as strongly magnetic (typically $10^{12}$G) rapidly rotating ($\sim 10^{2}-0.1$ Hz) neutron stars. However, the mechanism of particle acceleration in the pulsar…

Astrophysics · Physics 2008-11-26 Tomohide Wada , Shinpei Shibata

With the neutron star rotating under a stationary magnetic field generating unipolar induction, charges are driven to the pulsar surface according to their signs, and are uploaded to the magnetosphere along the magnetic field lines. In the…

High Energy Astrophysical Phenomena · Physics 2021-12-20 K. H. Tsui