Multi-D magnetohydrodynamic modelling of pulsar wind nebulae: recent progress and open questions

In the last decade, the relativistic magnetohydrodynamic (MHD) modelling of pulsar wind nebulae, and of the Crab nebula in particular, has been highly successful, with many of the observed dynamical and emission properties reproduced down to the finest detail. Here, we critically discuss the results...

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Published in:Journal of plasma physics 2016-12, Vol.82 (6), p.141102; 112102; 056501; 012016; 105004; 235002-141102; 112102; 056501; 012016; 105004; 235002, Article 635820601
Main Authors: Olmi, B., Del Zanna, L., Amato, E., Bucciantini, N., Mignone, A.
Format: Article
Language:English
Subjects:
Astrophysics
Computational fluid dynamics
Computer simulation
Crab nebula
Current sheets
Emission
Fluid flow
Fluid mechanics
Gamma rays
Magnetic fields
Magnetohydrodynamics
Mathematical models
Modelling
Nebulae
Neutron stars
Origins
Plasma physics
Plasma Physics of Gamma Ray Emission from Pulsars and their Nebulae
Pulsars
Stellar winds
Wind
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cited_by cdi_FETCH-LOGICAL-c448t-d995ec12156d10707065cbd58032d164ae0199f73615c2bfa029406ab4410af03
cites cdi_FETCH-LOGICAL-c448t-d995ec12156d10707065cbd58032d164ae0199f73615c2bfa029406ab4410af03
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creator Olmi, B.
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Mignone, A.
description In the last decade, the relativistic magnetohydrodynamic (MHD) modelling of pulsar wind nebulae, and of the Crab nebula in particular, has been highly successful, with many of the observed dynamical and emission properties reproduced down to the finest detail. Here, we critically discuss the results of some of the most recent studies: namely the investigation of the origin of the radio emitting particles and the quest for the acceleration sites of particles of different energies along the termination shock, by using wisp motions as a diagnostic tool; the study of the magnetic dissipation process in high magnetization nebulae by means of new long-term three-dimensional simulations of the pulsar wind nebula evolution; the investigation of the relativistic tearing instability in thinning current sheets, leading to fast reconnection events that might be at the origin of the Crab nebula gamma-ray flares.
doi_str_mv 10.1017/S0022377816000957
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ispartof Journal of plasma physics, 2016-12, Vol.82 (6), p.141102; 112102; 056501; 012016; 105004; 235002-141102; 112102; 056501; 012016; 105004; 235002, Article 635820601
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1469-7807
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source Cambridge University Press
subjects Astrophysics
Computational fluid dynamics
Computer simulation
Crab nebula
Current sheets
Emission
Fluid flow
Fluid mechanics
Gamma rays
Magnetic fields
Magnetohydrodynamics
Mathematical models
Modelling
Nebulae
Neutron stars
Origins
Plasma physics
Plasma Physics of Gamma Ray Emission from Pulsars and their Nebulae
Pulsars
Stellar winds
Wind
title Multi-D magnetohydrodynamic modelling of pulsar wind nebulae: recent progress and open questions
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