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The Equatorial Current Sheet and other interesting features of the Pulsar Magnetosphere

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arxiv 1604.03719 v2 pith:GW26ZOIP submitted 2016-04-13 astro-ph.HE

The Equatorial Current Sheet and other interesting features of the Pulsar Magnetosphere

classification astro-ph.HE
keywords currentequatorialmagnetospherepulsarsheetaccelerationalignedargue
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We want to understand what drives magnetospheric dissipation in the equatorial current sheet. Numerical simulations have limitations and, unless we have a clear a priori understanding of the physical processes involved, their results can be misleading. We argue that the canonical pulsar magnetosphere is strongly dissipative and that a large fraction (up to 30-40% in an aligned rotator) of the spindown luminosity is redirected towards the equator where it is dissipated into particle acceleration and emission of radiation. We show that this is due to the failure of the equatorial electric current to cross the Y-point at the tip of the corotating zone.

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