Hydromagnetic Wave Excitation at a Heliospheric Shock

Details Hydromagnetic Wave Excitation at a Heliospheric Shock Hydromagnetic Wave Excitation at a Heliospheric Shock

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh12c..02k&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SH12C-02

Physics

2100 Interplanetary Physics, 2114 Energetic Particles, Heliospheric (7514), 2124 Heliopause And Solar Wind Termination, 2139 Interplanetary Shocks, 2159 Plasma Waves And Turbulence

Scientific paper

We present observational evidence for self-consistent wave-particle interaction upstream of the main interplanetary traveling shock driven by the Bastille Day coronal mass ejection. Spectra of protons in the energy range 300 keV to 2 MeV derived from SOHO/CELIAS/HSTOF data and the power spectral densities of the magnetic field fluctuations measured by the magnetometer onboard ACE are consistent with theoretical predictions on coupled hydromagnetic wave excitation by protons with asymmetric distribution near interplanetary traveling shocks. We discuss theoretical models and apply them to describe the generation of turbulent plasma waves in the outer heliosphere by Anomalous Cosmic Rays. These waves mediate the termination shock, which has impact on its structure and location. Lee, M.A., Coupled Hydromagnetic Wave Excitation and Ion Acceleration at Interplanetary Traveling Shocks, JGR 88, 1983, pp. 6109-6119

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