Computer Science – Sound
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsh12a0391t&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SH12A-0391
Computer Science
Sound
2154 Planetary Bow Shocks, 2159 Plasma Waves And Turbulence, 2164 Solar Wind Plasma, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
Electrostatic noise at/near the solar wind plasma frequency is detected in the Earth's electron foreshock by the WHISPER relaxation sounder aboard the four CLUSTER spacecraft. The noise is observed when the interplanetary magnetic field line that passes through the spacecraft position connects to the shock surface. As expected, the noise intensity is largest along the magnetic field line that is tangent to the shock and the noise characteristics depend upon the position in the electron foreshock. Close to the tangent field line a narrow bandwidth noise occurs while far downstream of this boundary the noise spectrum appears to be broadened and may extend a little bit above and well below the solar wind plasma frequency. The WHISPER observations, the position of the spacecraft in the connection plane, and preliminary statistic maps are presented.
Balogh André
Canu Paolo
Darrouzet Fabien
Décréau P. M.
Lemaire Joseph
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