The "sigma" problem of the Crab pulsar wind

J.G. Kirk; O. Skjaeraasen

The "sigma" problem of the Crab pulsar wind

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arxiv astro-ph/0309573 v1 pith:F4JGQFJ2 submitted 2003-09-22 astro-ph

J.G. Kirk , O. Skjaeraasen This is my paper · ORCID

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keywords windfluxconversioncrabdissipationdominatedparticle-bornpoynting

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The conversion of the Crab pulsar wind from one dominated by Poynting flux close to the star to one dominated by particle-born energy at the termination shock is considered. The idea put forward by Coroniti (1990) and criticised by Lyubarsky & Kirk (2001) that reconnection in a striped wind is responsible, is generalised to include faster prescriptions for the a priori unknown dissipation rate. Strong acceleration of the wind is confirmed, and the higher dissipation rates imply complete conversion of Poynting flux into particle-born flux within the unshocked wind.

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Combined VERITAS and NuSTAR observations of the gamma-ray binary HESS J0632+057
astro-ph.HE 2019-08 conditional novelty 5.0 of 10

New NuSTAR and VERITAS spectra of HESS J0632+057 are well fitted by a pulsar-wind shock model, yielding a degenerate constraint with wind magnetization around 0.003 to 0.03 at the shock.

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