Twofluid model of the pulsar magnetosphere represented as an axisymmetric forcefree dipole
Abstract
Based on the exact dipolar solution of the pulsar equation the selfconsistent twofluid model of the pulsar magnetosphere is developed. We concentrate on the lowmass limit of the model, taking into account the radiation damping. As a result, we obtain the particle distributions sustaining the dipolar forcefree configuration of the pulsar magnetosphere in case of a slight velocity shear of the electron and positron components. Over most part of the forcefree region, the particles follow the poloidal magnetic field lines, with the azimuthal velocities being small. Close to the Ypoint, however, the particle motion is chiefly azimuthal and the Lorentzfactor grows unrestrictedly. This may result in the veryhighenergy emission from the vicinity of the Ypoint and may also imply the magnetocentrifugal formation of a jet. As for the firstorder quantities, the longitudinal accelerating electric field is found to change the sign, hinting at coexistence of the polar and outer gaps. Besides that, the components of the plasma conductivity tensor are derived and the lowmass analogue of the pulsar equation is formulated as well.
 Authors:
 Institute of Radio Astronomy of the NAS of Ukraine, Mystetstv Str., 4, Kharkiv 61002 (Ukraine)
 Publication Date:
 OSTI Identifier:
 22676195
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 05; Other Information: Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; AXIAL SYMMETRY; COMPUTERIZED SIMULATION; CONFIGURATION; DIPOLES; DISTRIBUTION; ELECTRIC FIELDS; ELECTRONS; EMISSION; EQUATIONS; FLUIDS; MAGNETIC FIELDS; MASS; PLASMA; POSITRONS; PULSARS; VELOCITY
Citation Formats
Petrova, S.A., Email: petrova@rian.kharkov.ua. Twofluid model of the pulsar magnetosphere represented as an axisymmetric forcefree dipole. United States: N. p., 2017.
Web. doi:10.1088/14757516/2017/05/041.
Petrova, S.A., Email: petrova@rian.kharkov.ua. Twofluid model of the pulsar magnetosphere represented as an axisymmetric forcefree dipole. United States. doi:10.1088/14757516/2017/05/041.
Petrova, S.A., Email: petrova@rian.kharkov.ua. Mon .
"Twofluid model of the pulsar magnetosphere represented as an axisymmetric forcefree dipole". United States.
doi:10.1088/14757516/2017/05/041.
@article{osti_22676195,
title = {Twofluid model of the pulsar magnetosphere represented as an axisymmetric forcefree dipole},
author = {Petrova, S.A., Email: petrova@rian.kharkov.ua},
abstractNote = {Based on the exact dipolar solution of the pulsar equation the selfconsistent twofluid model of the pulsar magnetosphere is developed. We concentrate on the lowmass limit of the model, taking into account the radiation damping. As a result, we obtain the particle distributions sustaining the dipolar forcefree configuration of the pulsar magnetosphere in case of a slight velocity shear of the electron and positron components. Over most part of the forcefree region, the particles follow the poloidal magnetic field lines, with the azimuthal velocities being small. Close to the Ypoint, however, the particle motion is chiefly azimuthal and the Lorentzfactor grows unrestrictedly. This may result in the veryhighenergy emission from the vicinity of the Ypoint and may also imply the magnetocentrifugal formation of a jet. As for the firstorder quantities, the longitudinal accelerating electric field is found to change the sign, hinting at coexistence of the polar and outer gaps. Besides that, the components of the plasma conductivity tensor are derived and the lowmass analogue of the pulsar equation is formulated as well.},
doi = {10.1088/14757516/2017/05/041},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2017,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}

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