Kinetic simulation of the coherent radio emission from pulsars

Schopper, R[diger; Ruhl, Hartmut; Kunzl, Thomas A. und Lesch, Harald (Januar 2003): Kinetic simulation of the coherent radio emission from pulsars. In: Laser and Particle Beams, Bd. 21, Nr. 1: S. 109-113

Abstract

On hand of 3D PIC simulations we show that in a strongly magnetized plasma a relativistic electron beam can be forced to emit highly coherent radio emission by self-induced nonlinear density fluctuations. Such slowly moving nonlinear structures oscillate with the local plasma frequency at which the relativistic electrons are scattered. Beam electrons dissipate a significant amount of their kinetic energy by inverse Compton radiation at a frequency of about γ2ωpe. Since the beam is sliced into pancake structures which experience the same electric field the inverse Compton scattering is coherent. Such a process is a very promising candidate for the coherent radio emission of pulsars.

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