Physics
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..263t&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, March 1986, p. 263-266. NASA-supported research.
Physics
153
Giacobini-Zinner Comet, International Sun Earth Explorer 3, Interplanetary Magnetic Fields, Magnetohydrodynamic Waves, Solar Wind, Space Plasmas, Comet Tails, Ionic Reactions, Magnetohydrodynamic Stability, Magnetohydrodynamic Turbulence, Plasma-Particle Interactions, Polarization (Waves), Comets, Giacobini-Zinner, Ice Mission, Spacecraft Observations, Ions, Magnetohydrodynamics, Turbulence, Waves, Amplitude, Polarization, Magnetic Fields, Water, Resonance, Theoretical Studies, Analysis
Scientific paper
The hydromagnetic turbulence surrounding comet Giacobini-Zinner is characterized by two dominant components: large amplitude, linearly polarized waves with periods near 100 s and circularly polarized wave packets with periods near 3 s. The latter appear in association with variations in field magnitude produced by the long period waves. A third, commonly observed feature is identified, consisting of a partial rotation of the magnetic field (a hook-like structure) which also appears to be triggered by the long period waves. The possibility that the long period waves are generated by the pickup of freshly ionized cometary neutrals has been investigated. A resonant instability identified by Wu and Davidson (1972) appears able to account for the long period waves in terms of the pickup of cometary ions of the water group. Application of the theory also indicates that the growth rate of proton cyclotron waves, as a consequence of hydrogen ion pickup, is somewhat lower, due to both higher neutral velocities and longer ionization times.
Smith Edward. J.
Tsurutani Bruce T.
No associations
LandOfFree
Hydromagnetic waves and instabilities associated with cometary ion pickup - ICE observations 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 Hydromagnetic waves and instabilities associated with cometary ion pickup - ICE observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydromagnetic waves and instabilities associated with cometary ion pickup - ICE observations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1282031