The electron density of faint prominences observed during the solar eclipse of July 31, 1981

Details The electron density of faint prominences observed during the solar eclipse of July 31, 1981 The electron density of faint prominences observed during the solar eclipse of July 31, 1981

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...119..261k&link_type=abstract

Astronomy and Astrophysics, vol. 119, no. 2, Mar. 1983, p. 261-264.

Astronomy and Astrophysics

Astrophysics

8

Electron Density (Concentration), Solar Eclipses, Solar Prominences, Solar Spectra, Astronomical Photography, Continuous Spectra, Electron Energy, H Beta Line, Photosphere, Thomson Scattering

Scientific paper

Prominences visible on the narrow band filtergrams of the eclipsed Sun, July 3t, 1981, are analysed. The ratio of the Hβ line intensity to the continuum intensity at λ=6073 Å is used to derive the electron density ne as a function of electron temperature Te. The prominences present on that day were of low brightness: Eβ,max ≃ 0.2 104 [erg cm-2 s-1 sterad-1]. An electron density ne = 5.7 109 [cm-3] at Te = 10,000° is obtained, being typical for prominence edges.

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