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Probing the Solar Wind Acceleration Region Using Spectroscopic Techniques

  • Chapter
The Source Region of the Solar Wind

Abstract

Measurements of the intensities and profiles of UV and EUV spectral lines can provide a powerful tool for probing the physical conditions in the solar corona out to 8R and beyond. We discuss here how measurements of spectral line radiation in conjunction with measurements of the white light K-corona can provide information on electron, proton and ion temperatures and velocity distribution functions; densities; chemical abundances and mass flow velocities. Because of the fundamental importance of such information, we provide a comprehensive review of the formation of coronal resonance line radiation, with particular emphasis on the H I Lα line, and discuss observational considerations such as requirements for rejection of stray light and effects of emission from the geocorona and interplanetary dust. Finally, we summarize some results of coronal H I Lα and white light observations acquired on sounding rocket flights.

Paper presented at the IX-th Lindau Workshop ‘The Source Region of the Solar Wind’.

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W. K. H. Schmidt H. Grünwaldt

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© 1982 D. Reidel Publishing Co., Dordrecht, Holland, and Boston, U.S.A.

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Withbroe, G.L., Kohl, J.L., Weiser, H., Munro, R.H. (1982). Probing the Solar Wind Acceleration Region Using Spectroscopic Techniques. In: Schmidt, W.K.H., Grünwaldt, H. (eds) The Source Region of the Solar Wind. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7953-6_2

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  • DOI: https://doi.org/10.1007/978-94-009-7953-6_2

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