Radio Sounding of the Solar Corona with Rosetta and Mars Express

Details Radio Sounding of the Solar Corona with Rosetta and Mars Express Radio Sounding of the Solar Corona with Rosetta and Mars Express

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh51a1457p&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SH51A-1457

Physics

Plasma Physics

6900 Radio Science, 7500 Solar Physics, Astrophysics, And Astronomy, 7513 Coronal Mass Ejections (2101), 7800 Space Plasma Physics

Scientific paper

The Radio Science Experiment RSI on the ROSETTA spacecraft performed the radio sounding of the solar corona during superior solar conjunction in April 2006 at an apparent distance to the solar disk of two solar radii in the plane of sky. The transmitted radio signals at X-band (8.4 GHz) and S-band (2.3 GHz) had to propagate through the dense plasma of the solar corona. Changes in carrier frequency and propagation delay revealed the large scale structure, the electron content, density and turbulence of the plasma as a function of distance to the sun. Comparison will be made with SOHO/LASCO images and other observations. The radio sounding of the Mars superior conjunction in August/September 2004 by the Radio Science Experiment MaRS on Mars Express is also presented where a CME passing the radio ray path could be observed.

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