Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm41b2018z&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM41B-2018
Physics
[2764] Magnetospheric Physics / Plasma Sheet, [2772] Magnetospheric Physics / Plasma Waves And Instabilities
Scientific paper
We conduct a statistical study on electron cyclotron harmonic (ECH) waves using electric field filter bank data and FFT spectra data from the inner three probes of THEMIS mission. We examine events in May 2010- June 2011, when the fast mode FFT spectra are available to investigate the details of ECH waves. Utilizing simultaneous observations from three spacecraft separated by approximately 1000km to 7000km, we examine the spatial extent of ECH events from L~3 to L~12. We also look into the anisotropy, the flow, the energetic particles, the electron density and plasma beta for each spacecraft, which are probably related to the local excitation of ECH waves. In addition, we study the wave properties in possible correlation with spatial extent, including angle of propagation and intensity of ECH waves. Our results provide information regarding the generation mechanism of ECH waves.
Angelopoulos Vassilis
Mansergh Thorne Richard
Ni Binbin
Zhang Xinyu
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