CAOSP abstracts, Volume: 33, No.: 3, year: 2003
- Author(s): Schwartz, P.
- Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 33, no. 3, p. 209-223.
- Date: 10/2003
- Title: The influence of a coronal inhomogeneity on emission spectral line intensities and on coronal iron abundance determination
- Keyword(s): Sun, corona, emission lines, iron abundance
- Pages: 209 -- 223
Abstract:
The aim of this paper is to show how much coronal inhomogeneity could
influence emission line intensities and iron abundance determination using
these intensities. Although the latest methods can consider temperature
changes along the line of sight, presence of areas with very different
electron densities cannot be taken into account. We argue that in case the
line of sight goes through some coronal inhomogeneity, iron abundance
determination from emission lines intensity using the present methods could
differ up to 2 orders of magnitude from the actual value. A new method is
suggested in this paper which should solve not only the problem of the iron
abundance determination in the solar corona but it could help in electron
density and temperature determination in coronal inhomogeneity as well.
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