Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...261..664v&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 261, no. 2, p. 664-670.
Astronomy and Astrophysics
Astrophysics
33
Celestial Mechanics, Chaos, Charged Particles, Gravitational Waves, Magnetic Field Configurations, Polarization (Waves), Stochastic Processes, Wave Propagation
Scientific paper
The motion of charged particles (electrons or ions) is considered in a uniform magnetic field and a linearly polarized gravitational wave propagating along the x-axis. It is found numerically that for certain values of the amplitude of the wave and the relative frequency, nu = omega/Omega, (where by omega we denote the angular frequency of the wave and by Omega the angular Larmor frequency of the charged particle) the motion of the particles becomes chaotic. In this way secular transfer of energy between the wave and the particles becomes possible, resulting in a possible damping of the wave. An approximate stochasticity criterion is derived theoretically, estimating the stochasticity threshold of the amplitude of the wave as a function of the relative frequency and the momentum of the particles.
Papadopoulos Demetrios
Varvoglis Harry
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