Electron acceleration at PWN termination shocks: Application to PSR B1259-63

Giacchè, Simone; Kirk, J. G.

doi:10.1063/1.4968923

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…As a consequence, a shock becomes essentially unmagnetized and thus potentially a very efficient Fermi accelerator. Recent studies [28] of the particle dynamics in the precursor indeed demonstrate its ability to energise particles via wave-particle interactions. In particular, they prove that a significant fraction of such a pre-accelerated particles is reflected upstream and further picked up by the Fermi I-order mechanism.…”

Section: Mhd and Beyond: σ -Problem And The Structure Of Termination ...mentioning

confidence: 97%

Pulsar striped winds

Mochol

2017

Preprint

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According to magnetohydrodynamic (MHD) models, the rotational energy of a rapidly spinning neutron star is carried away by a relativistic wind and deposited at a large distance, in the nebula, downstream of the wind termination shock. The energy transport in the outflow is mediated by Poynting flux, but it is not clear how the energy stored in the fields is transferred into the energized population of emitting particles. The most plausible dissipation mechanisms are thought to be related to the "striped" structure of the wind, in particular, to the existence of a current sheet, prone to reconnection events. In this model the current sheet is a natural place for internal dissipation and acceleration of particles responsible for pulsed, high-energy emission. Moreover, reconnection is a promising scenario for explaining annihilation of fields at the shock and conversion of their energy into the kinetic energy of particles. The shock structure, however, is likely to differ in the low-density plasmas, in which non-MHD effects intervene. In this regime, the striped wind can dissipate its energy via an electromagnetic precursor of the shock.

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Section: Mhd and Beyond: σ -Problem And The Structure Of Termination ...mentioning

confidence: 97%

Pulsar striped winds

Mochol

2017

Preprint

View full text Add to dashboard Cite

show abstract

Electron acceleration at PWN termination shocks: Application to PSR B1259-63

Cited by 1 publication

References 23 publications

Pulsar striped winds

Pulsar striped winds

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