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We present the magnetic and electric field structures as well as the currents and charge densities of pulsar magnetospheres which do not obey the ideal condition, ${\bf E \cdot B =0}$. Since the acceleration of particles and the production…

Solar and Stellar Astrophysics · Physics 2015-05-30 Constantinos Kalapotharakos , Demosthenes Kazanas , Alice Harding , Ioannis Contopoulos

We argue that existing models of the ideal pulsar magnetosphere are incorrect because of the improper treatment of the singular current layer outside the light cylinder. We simulated the axisymmetric pulsar magnetosphere in the Force-Free…

High Energy Astrophysical Phenomena · Physics 2011-01-18 Andrei Gruzinov

The current state of the art in the modeling of pulsar magnetospheres invokes either the vacuum or force-free limits for the magnetospheric plasma. Neither of these limits can simultaneously account for both the plasma currents and the…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Jason Li , Anatoly Spitkovsky , Alexander Tchekhovskoy

We present, for the first time, the structure of the axisymmetric force-free magnetosphere of an aligned rotating magnetic dipole, in the case in which there exists a sufficiently large charge density (whose origin we do not question) to…

Astrophysics · Physics 2011-07-18 Ioannis Contopoulos , Demosthenes Kazanas , Christian Fendt

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

Current closure in the pulsar magnetosphere holds the key to its structure. We must determine not only the global electric circuit, but also the source of its electric charge carriers. We address this issue with the minimum number of…

High Energy Astrophysical Phenomena · Physics 2018-10-17 Ioannis Contopoulos

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 a model of the magnetosphere around an oscillating neutron star. The electromagnetic fields are numerically solved by modeling electric charge and current induced by the stellar torsional mode, with particular emphasis on…

High Energy Astrophysical Phenomena · Physics 2016-06-21 Yasufumi Kojima , Yugo E. Kato

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

In view of recent efforts to probe the physical conditions in the pulsar current sheet, we revisit the standard solution that describes the main elements of the ideal force-free pulsar magnetosphere. The simple physical requirement that the…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Ioannis Contopoulos , Konstantinos Kalapotharakos , Demosthenes Kazanas

This Letter investigates the physics that is responsible for creating the current system that supports the outgoing Poynting flux emanating from the ergosphere of a rotating black hole in the limit that the magnetic energy density greatly…

Astrophysics · Physics 2007-05-23 Brian Punsly

Based on the exact dipolar solution of the pulsar equation the self-consistent two-fluid model of the pulsar magnetosphere is developed. We concentrate on the low-mass limit of the model, taking into account the radiation damping. As a…

High Energy Astrophysical Phenomena · Physics 2017-05-31 S. A. Petrova

First I emphasize the magnetospheric loop current system induced by the wind activity. Next, I address the formation of the field-aligned electric field. An interesting aspect is the reaction of the inner magnetosphere to an induced…

Astrophysics · Physics 2007-05-23 Shinpei Shibata

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

We present a theoretical study of the magnetic field generated by a toroidal current loop situated in the equatorial plane of a non-rotating Schwarzschild black hole, based on the dynamics of charged particles. Using the exact general…

General Relativity and Quantum Cosmology · Physics 2025-09-16 Martin Kološ , David Kofroň

A good compromise between the resistive model and the PIC model is Aristotelian electrodynamics, which can include the back-reaction of the radiative photons onto particle motion and allow for a local dissipation where the force-free…

High Energy Astrophysical Phenomena · Physics 2020-02-28 Gang Cao , Xiongbang Yang

To explain the pulsed emission of the rotation powered pulsars from radio to gamma-ray, the polar cap models, the slot gap models, and the outer gap models are proposed. The recent observations suggest that these models are likely to…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Shinya Yuki , Shinpei Shibata

The global structure of the current flows in pulsar magnetospheres is investigated, with rough calculations of the elements in the magnetospheric circuit. It is emphasized that the potential of critical field lines is the same as that of…

Astrophysics · Physics 2009-11-13 Ren-Xin Xu , Xiao-Hong Cui , Guo-Jun Qiao

The pulsar magnetosphere is divided into a corotating region of closed field lines surrounded by open field lines that emanate from the two poles of the star, extend to infinity and are separated by an equatorial current sheet. The three…

High Energy Astrophysical Phenomena · Physics 2023-09-20 I. Contopoulos , D. Ntotsikas , K. N. Gourgouliatos

The current state of the art in pulsar magnetosphere modeling assumes the force-free limit of magnetospheric plasma. This limit retains only partial information about plasma velocity and neglects plasma inertia and temperature. We carried…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Alexander Tchekhovskoy , Anatoly Spitkovsky , Jason G. Li
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