On the reconstruction of a magnetosphere of pulsars nearby the light cylinder surface

Osmanov, Z.; Dalakishvili, G.; Machabeli, G. Z.

doi:10.1063/1.2900123

Cited by 6 publications

(13 citation statements)

References 16 publications

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“…2003; Osmanov et al. 2008). It was demonstrated that the magnetic field lines after the light-cylinder region transform into the Archimedes spiral with the step that provides the force-free regime, when the particles do not feel the influence of the magnetic field and, consequently, the rotation of the pulsar. The plasma mechanism of generation of drift waves and the growth of magnetic perturbations across the pulsar magnetic field was considered, which causes the magnetic field reconstruction near the light cylinder.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…2003; Osmanov et al. 2008, 2009). Therefore, the above equations are valid inside the light-cylinder zone and the developed method cannot be extended in the region outside the light cylinder.…”

Section: Dynamics Of a Particle Moving Along A Straight Rigid Rotatinmentioning

confidence: 98%

“…According to a series of works, such a limit is a direct result of reconstruction of the magnetic field from a dipolar structure to the poloidal configuration (Michel 1969; Osmanov et al. 2008, 2009). In these works it has been shown that by means of the parametric instability the poloidal magnetic field is created and the process is terminated when the dynamics becomes force-free.…”

Section: Parametric Mechanism Of Pumping Of Rotation Energy Into Thatmentioning

confidence: 99%

“…For constraining a more realistic model, one needs to investigate the process of twisting of the magnetic field lines in the opposite direction from rotation (Michel 1969;Bogovalov 2001;Rogava et al 2003;Osmanov et al 2008Osmanov et al , 2009. Therefore, the above equations are valid inside the light-cylinder zone and the developed method cannot be extended in the region outside the light cylinder.…”

Section: Dynamics Of a Particle Moving Along A Straight Rigid Rotatinmentioning

confidence: 99%

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

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Section: Dynamics Of a Particle Moving Along A Straight Rigid Rotatinmentioning

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Section: Parametric Mechanism Of Pumping Of Rotation Energy Into Thatmentioning

confidence: 99%

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confidence: 99%

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Centrifugally induced curvature drift instability in AGN

Zaza¹

2008

AIP Conference Proceedings

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We investigate the centrifugally driven curvature drift instability to study how field lines twist close to the light cylinder surface of an AGN, through which the free motion of AGN winds can be monitored. By studying the dynamics of the relativistic MHD flow close to the light cylinder surface, we derive and solve analytically the dispersion relation of the instability by applying a single particle approach based on the centrifugal acceleration. Considering the typical values of AGN winds, it is shown that the timescale of the curvature drift instability is far less than the accretion process timescale, indicating that the present instability is very efficient and might strongly influence processes in AGN plasmas.

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Relativistic Rotating Electromagnetic Fields

Vargas-Rodríguez

Gallegos

Muñiz-Torres

et al. 2020

Advances in High Energy Physics

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In this work, we consider axially symmetric stationary electromagnetic fields in the framework of special relativity. These fields have an angular momentum density in the reference frame at rest with respect to the axis of symmetry; their Poynting vector form closed integral lines around the symmetry axis. In order to describe the state of motion of the electromagnetic field, two sets of observers are introduced: the inertial set, whose members are at rest with the symmetry axis; and the noninertial set, whose members are rotating around the symmetry axis. The rotating observers measure no Poynting vector, and they are considered as comoving with the electromagnetic field. Using explicit calculations in the covariant 3 + 1 splitting formalism, the velocity field of the rotating observers is determined and interpreted as that of the electromagnetic field. The considerations of the rotating observers split in two cases, for pure fields and impure fields, respectively. Moreover, in each case, each family of rotating observers splits in two subcases, due to regions where the electromagnetic field rotates with the speed of light. These regions are generalizations of the light cylinders found around magnetized neutron stars. In both cases, we give the explicit expressions for the corresponding velocity fields. Several examples of relevance in astrophysics and cosmology are presented, such as the rotating point magnetic dipoles and a superposition of a Coulomb electric field with the field of a point magnetic dipole.

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On the reconstruction of a magnetosphere of pulsars nearby the light cylinder surface

Cited by 6 publications

References 16 publications

The Crab nebula energy origin and its high frequency radiation spectra

The Crab nebula energy origin and its high frequency radiation spectra

Centrifugally induced curvature drift instability in AGN

Relativistic Rotating Electromagnetic Fields

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