Physics
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988sohi.rept...55m&link_type=abstract
In ESA, The SOHO Mission. Scientific and Technical Aspects of the Instruments p 55-61 (SEE N90-13302 04-92)
Physics
2
Coronagraphs, Fraunhofer Lines, Interferometers, Soho Mission, Solar Observatories, Solar Wind, Interplanetary Dust, Solar Magnetic Field, Space Plasmas
Scientific paper
The scientific objectives of the LASCO (light and spectrometric coronagraph) project in the SOHO (solar and heliospheric observatory) mission are described. These include investigation of mechanisms for heating of the corona and acceleration of the solar wind, causes of coronal transients, and their role in development of large scale coronal patterns and interplanetary disturbances. The distribution and properties of dust particles, including those released from sun-grazing comets are investigated. Interactions of coronal plasma with the dust are studied. The corona is analyzed spectroscopically by a high-resolution scanning, imaging interferometer. The spectral profiles of three emission lines and one Fraunhofer line are measured for each picture point, giving temperatures, velocities, turbulent motions and volume densities. Polarization analysis yields the direction of coronal magnetic fields.
Antiochos Spiro K.
Bartoe John-David F.
Brueckner Guenter E.
Cheng Chung-Chieh
Dere Ken P.
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