UNSPECIFIED (2005) Perpendicular shock reformation and ion acceleration. SPACE SCIENCE REVIEWS, 121 (1-4). pp. 5-19. ISSN 0038-6308

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Abstract

Kinetic simulations of supercritical, quasi-perpendicular shocks yield time-varying solutions that cyclically reform on proton spatio-temporal scales. Whether a shock solution is stationary or reforming depends upon the plasma parameters which, for SNR shocks and the heliospheric termination shock, are ill defined but believed to be within this time-dependent regime. We first review the time-dependent solutions and the acceleration processes of the ions for a proton-electron plasma. We then present recent results for a three-component plasma: background protons, electrons and a second ion population appropriate for SNR (heavy ions) or the termination shock (pickup protons). This ion acceleration generates a suprathermal "injection" population - a seed population for subsequent acceleration at the shock, which may in turn generate ions at cosmic ray energies.

Item Type:	Journal Item
Subjects:	Q Science > QB Astronomy
Journal or Publication Title:	SPACE SCIENCE REVIEWS
Publisher:	SPRINGER
ISSN:	0038-6308
Date:	December 2005
Volume:	121
Number:	1-4
Number of Pages:	15
Page Range:	pp. 5-19
Identification Number:	10.1007/s11214-006-4481-x
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/33459

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