Computer simulations of two-pickup-ion instabilities in a cometary environment

Details Computer simulations of two-pickup-ion instabilities in a cometary environment Computer simulations of two-pickup-ion instabilities in a cometary environment

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.9584g&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, Sept. 1, 1988, p. 9584-9596. DOE-supported research.

Physics

48

Comets, Computerized Simulation, Ion Density (Concentration), Magnetohydrodynamic Stability, Ion Injection, Oxygen Ions, Particle Acceleration, Solar Protons, Solar Wind

Scientific paper

This paper presents a one-dimensional electromagnetic hybrid computer simulation of distant cometary environments, in which protons and oxygen ions are injected continuously at the same time. It is demonstrated that, when, instead of a single component, both protons and oxygen ions are injected, the faster growing shorter-wavelength proton-proton right-hand resonant instability dominates the early time physics, leading to linear temporal growth of the fluctuating magnetic field energy density and pitch angle scattering of the protons (but causing no significant response by the nonresonant oxygen ions). At later times, as the injected oxygen ions accumulate sufficient density, the oxygen-proton right-hand resonant instability emerges, exhibiting exponential temporal growth to a relatively large peak amplitude, phase bunching, and magnetically trapping the oxygen ions. At times after peak amplitude, the oxygen-proton fluctuations stochastically accelerate some of the injected protons.

Affiliated with

Also associated with

No associations

Rating

Computer simulations of two-pickup-ion instabilities in a cometary environment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Computer simulations of two-pickup-ion instabilities in a cometary environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer simulations of two-pickup-ion instabilities in a cometary environment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-914134