Search for spectral line polarization in the solar vacuum ultraviolet

Details Search for spectral line polarization in the solar vacuum ultraviolet Search for spectral line polarization in the solar vacuum ultraviolet

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...66...13s&link_type=abstract

Solar Physics, vol. 66, May 1980, p. 13-19. Research supported by the Swedish Board for Space Activities.

Physics

5

Coherent Scattering, Far Ultraviolet Radiation, Optical Polarization, Solar Spectra, Intercosmos Satellites, International Cooperation, Lyman Alpha Radiation, Solar Limb

Scientific paper

An instrument designed to record polarization in the region 120-150 nm of the solar spectrum was launched on the satellite Intercosmos-16 on July 27, 1976. The aim was to search for resonance-line polarization that is caused by coherent scattering. Oblique reflections at gold- and aluminum-coated mirrors in the instrument were used to analyze the polarization. The average polarization of the Lyman alpha solar limb was found to be less than 1%. It is indicated that future improved VUV polarization measurements may be a diagnostic tool for chromospheric and coronal magnetic fields and for the three-dimensional geometry of the emitting structures.

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