Self-consistent model of the global structure of axially-symmetric pulsar magnetosphere in massless approximation

Rylov, Yu. A.

doi:10.1007/bf00637141

Cited by 8 publications

(3 citation statements)

References 20 publications

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“…(Pulsar is a rapidly rotating neutron star producing radiation and radio waves in regular amounts.) In a pulsar's magnetosphere, the oscillations of electrons (positrons) are suppressed almost instantly: ∆τ ≈ 5.16ps÷0.52f s. The suppression of electron's oscillations caused by the radiation damping was first used by Rylov in series of papers [29,30,31] devoted to the study of plasma's behavior in a pulsar's magnetosphere. The author considers the equation for eigenvalue and eigenvectors of the electromagnetic field tensor as ultrarelativistic limit of the Landau-Lifshitz equation.…”

Section: Discussionmentioning

confidence: 99%

Exact solution to the Landau-Lifshitz equation in a constant electromagnetic field

Yaremko¹

2013

Journal of Mathematical Physics

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We are interested in the motion of a classical charge acted upon an external constant electromagnetic field where the back reaction of the particle's own field is taken into account. The Landau-Lifshitz approximation to the Lorentz-Abraham-Dirac equation is solved exactly and in closed form. It is shown that the ultrarelativistic limit of the Landau-Lifshitz equation for a radiating charge is the equation for eigenvalues and eigenvectors of the external electromagnetic field tensor.

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Section: Discussionmentioning

confidence: 99%

Exact solution to the Landau-Lifshitz equation in a constant electromagnetic field

Yaremko¹

2013

Journal of Mathematical Physics

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“…He already noted the importance of the total electric charge of the star. He refined his model in several subsequent papers about the electron polar cap shape (Rylov 1977, 1985), electron and particle acceleration (Rylov 1979, 1987,?) and the influence on pair creation in the magnetosphere (Rylov 1981, 1982, 1984) and the global structure of the magnetosphere (Rylov 1988, 1989). According to this literature, the 1970s and 1980s were the favourable periods to work on the topic discussed in this section.…”

Section: Electrosphere Modelsmentioning

confidence: 99%

Theory of pulsar magnetosphere and wind

Pétri

2016

J. Plasma Phys.

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Neutron stars are fascinating astrophysical objects immersed in strong gravitational and electromagnetic fields, at the edge of our current theories. These stars manifest themselves mostly as pulsars, emitting a timely very stable and regular electromagnetic signal. Even though discovered almost fifty years ago, they still remain mysterious compact stellar objects. In this review, we summarize the most fundamental theoretical aspects of neutron star magnetospheres and winds. The main competing models explaining their radiative properties like multi-wavelength pulse shapes and spectra and the underlying physical processes such as pair creation and radiation mechanisms are scrutinized. A global but still rather qualitative picture slowly emerges thanks to recent advances in numerical simulations on the largest scales. However considerations about pulsar magnetospheres remain speculative. For instance, the exact composition of the magnetospheric plasma is not yet known. Is it solely filled with a mixture of e ± leptons or does it contain a non-negligible fraction of protons and/or ions? Is it almost entirely filled or mostly empty except for some small anecdotal plasma filled regions? Answers to these questions will strongly direct the description of the magnetosphere to seemingly contradictory results leading sometimes to inconsistencies. Nevertheless, accounts are given as to the latest developments in the theory of pulsar magnetospheres and winds, the existence of a possible electrosphere and physical insight obtained from related observational signatures of multi-wavelength pulsed emission.

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“…relativistic jets of radiation and particles from super-massive black holes in the centers of some active galaxies. In series of papers [14][15][16] the behavior of plasma behavior in a neutron star's magnetosphere is studied. The consideration is based on the LAD equation describing particle's motion in flat spacetime.…”

Section: Introductionmentioning

confidence: 99%

Regularization of electromagnetic field for self-force problem in de Sitter spacetime

Yaremko,

Duviryak

2023

Class. Quantum Grav.

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The paper is concerned with the motion of a point electric charge inde Sitter spacetime. A point particle of mass $m$ and charge $q$moving on a geodesic curve produces electromagnetic field that diverges ata particle's position. The field is determined by the electromagnetic Green'sfunction by Higuchi and Lee \cite{Hig2008}. The self-force contains bothdivergent and finite terms, and the latter are responsible for the radiation reaction.Our derivation of an effective equations of motion is based on conservation lawscorresponding to the group of isometry of de Sitter space. The N"{o}ther quantitiesconsist of particle's individual characteristics and energy, momentum, and angularmomentum carried by particle's electromagnetic field. Following the Detweiler–-Whitingconcept that a charge's motion should only be enforced by the regular componentof its own field, we ignore the divergent terms in conservation laws. We assumethat the divergencies are absorbed by particle's individual characteristicswithin the renormalization procedure. Finite radiative terms together withkinematic particle's characteristics constitute ten conserved quantitiesof closed particle plus field system. Their differential consequences yieldthe effective equations of motion of radiating charge in an external electromagneticfield and gravitation. Contributions to already renormalized particle's four-momentum and its inertial mass originatedfrom electromagnetic field and background gravity are also derived from ten balanceequations.

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Self-consistent model of the global structure of axially-symmetric pulsar magnetosphere in massless approximation

Cited by 8 publications

References 20 publications

Exact solution to the Landau-Lifshitz equation in a constant electromagnetic field

Exact solution to the Landau-Lifshitz equation in a constant electromagnetic field

Theory of pulsar magnetosphere and wind

Regularization of electromagnetic field for self-force problem in de Sitter spacetime

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