Cosmic ray acceleration in pulsar-driven supernova remnants

Details Cosmic ray acceleration in pulsar-driven supernova remnants Cosmic ray acceleration in pulsar-driven supernova remnants

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.257..493b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 257, no. 3, Aug. 1, 1992, p. 493-500.

Astronomy and Astrophysics

Astronomy

19

Cosmic Rays, Interstellar Matter, Particle Acceleration, Pulsars, Supernova Remnants, Angular Momentum, Crab Nebula, Energy Spectra, Magnetohydrodynamics, Stellar Winds

Scientific paper

It is proposed that cosmic rays can be accelerated to energies in the range 10 exp 15-10 exp 19 eV by the electric fields in pulsar-driven supernova remnants. A potential difference of the required magnitude exists between the pole and the equator (as defined by the axis of rotation of the pulsar) of the supernova remnant. Del B drifts allow a cosmic ray to enter at the pole and drift through the nebula to exit near the equator, thus gaining energy. Cosmic ray trajectories are calculated for magnetic and electric fields consistent with models of the Crab nebula. Individual cosmic rays can have their energy increased by factors of greater than 100. Remnants driven by pulsars with ms periods may accelerate protons to 10 exp 19 eV and heavy ions to larger energies.

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