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

Lesch, Harald; Kunzl, Thomas A. und Jessner, Axel (2000): A low energy-model for coherent radio emission – the three-liter-pulsar. In: International Astronomical Union Colloquium, Bd. 177: S. 381-386

Abstract

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 ≃ γ 2 ν pe (ν pe 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.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 520 Astronomie ; 500 Naturwissenschaften und Mathematik > 530 Physik
• Sprache: Englisch