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Solar Physics

, Volume 66, Issue 1, pp 13–19 | Cite as

Search for spectral line polarization in the solar vacuum ultraviolet

  • J. O. Stenflo
  • D. Dravins
  • N. Wihlborg
  • A. Bruns
  • V. K. Prokof'ev
  • I. A. Zhitnik
  • H. Biverot
  • L. Stenmark
Article

Abstract

An instrument designed to record polarization in the region 120–150 nm of the solar spectrum was launched on the satellite Intercosmos-16, July 27, 1976. The aim was to search for resonance-line polarization that is caused by coherent scattering. Oblique reflections at gold- and aluminium-coated mirrors in the instrument were used to analyze the polarization. The average polarization of the Lα solar limb was found to be less than 1%. It is indicated how 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.

Keywords

Gold Magnetic Field Reflection Diagnostic Tool Spectral Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Basri, G. S., Linsky, J. L., Bartoe, J.-D. F., Brueckner, G. E., and Van Hoosier, M. E.: 1979, Astrophys. J. 230, 924.Google Scholar
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Copyright information

© D. Reidel Publishing Co 1980

Authors and Affiliations

  • J. O. Stenflo
    • 1
  • D. Dravins
    • 2
  • N. Wihlborg
    • 2
  • A. Bruns
    • 3
  • V. K. Prokof'ev
    • 3
  • I. A. Zhitnik
    • 4
  • H. Biverot
    • 5
  • L. Stenmark
    • 6
  1. 1.High Altitude Observatory, National Center for Atmospheric ResearchBoulderU.S.A.
  2. 2.Lund ObservatoryLundSweden
  3. 3.Crimean Astrophysical ObservatoryNauchnyU.S.S.R.
  4. 4.Lebedev Institute of PhysicsMoscowU.S.S.R.
  5. 5.Jungner Instrument ABSolnaSweden
  6. 6.Swedish Space CorporationSolnaSweden

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