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A low energy-model for coherent radio emission — the three-liter-pulsar

Published online by Cambridge University Press:  12 April 2016

Harald Lesch ,
Thomas Kunzl  and
Axel Jessner
Harald Lesch
Affiliation:
University Observatory, Scheinerstr. 1, 81679 Munich, Germany
Thomas Kunzl
Affiliation:
University Observatory, Scheinerstr. 1, 81679 Munich, GermanyMax-Planck-Institut for Extraterrestrial Physics, Giessenbachstr., 85748 Garching, Germany
Axel Jessner
Affiliation:
Max-Planck-Institut for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany

Abstract

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We present a new model for the coherent radio emission of pulsars that succeeds in reproducing observed luminosities at emission heights of 50-100 pulsar radii. Based on energy conservation and propagation effects we apply the concept of a free electron maser (FEM) to the creation of coherent radio emission. With the characteristic frequency ν ≃ γ2νpe (νpe denotes the plasma frequency and γ is the Lorentz factor of the emitting particles) we find that even for the lowest frequencies at which the highest degree of coherence is required only low energy particles (γ ≃ 10) with Goldreich-Julian-density are necessary. Because of its low energy budget we call it three-liter-pulsar.

Type
Part 6. Emission and Plasma Theory
Information
International Astronomical Union Colloquium , Volume 177: Pulsar Astronomy - 2000 and Beyond , 2000 , pp. 381 - 386
Copyright
Copyright © Astronomical Society of the Pacific 2000

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