UVCS: an Ultraviolet Coronagraph Spectrometer for SOHO

Details UVCS: an Ultraviolet Coronagraph Spectrometer for SOHO UVCS: an Ultraviolet Coronagraph Spectrometer for SOHO

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988sohi.rept...49k&link_type=abstract

In ESA, The SOHO Mission. Scientific and Technical Aspects of the Instruments p 49-54 (SEE N90-13302 04-92)

Physics

Plasma Physics

Coronagraphs, Soho Mission, Solar Corona, Solar Spectrometers, Ultraviolet Astronomy, Plasma Physics, Solar Corpuscular Radiation, Solar Observatories, Solar Wind

Scientific paper

The UltraViolet Coronagraph Spectrometer (UVCS) of SOHO (solar and heliospheric observatory) provides ultraviolet spectroscopic observations of the solar corona out to ten solar radii from sun-center. This capability is expected to greatly expand the number of plasma parameters that can be specified by remote sensing techniques. Plasma diagnostic techniques are expected to provide a sufficient number of empirically derived parameters to significantly constrain theories of solar wind acceleration, coronal heating, and solar wind composition. The spectral line profiles and intensities are sensitive to random velocity distributions and to the effective temperatures of protons, minor ions, and electrons. Ion densities, chemical abundances, and outflow velocities of coronal protons and ions into the solar wind are also taken into consideration.

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