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Published April 1982 | Published
Journal Article Open

Acceleration of a relativistic plasma by radiation pressure

Abstract

The greatly enhanced radiation pressure force felt by a relativistic plasma is accompanied by catastrophic Compton cooling and only in extreme conditions can it lead to acceleration to relativistic bulk velocities. We solve the equations of motion in the optimal case and find that the efficiency of acceleration is typically < 1 per cent (the energy lost being given to the scattered photons). The complicating effects of expansion of the plasma, finite source size and scattering above the Klein–Nishina limit are described. We end with a short list of situations in which the phenomenon may nevertheless be of importance.

Additional Information

© 1982 Royal Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1981 July 27; in original form 1981 May 18. I thank my supervisor, M. J. Rees for comments and encouragement, an anonymous referee for a wise comment, and the Marshall commission for financial support.

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