Abstract
Fabry-Perot interferometfic observations in the green coronal line during the total eclipse of 1980 February 16, have yielded line-width temperatures up to 1.5Rė over a wide range of position angles. Least square analysis of the data indicates a tentative temperature maximum near 1.2Rė from the centre of the Sun. The ratio of peak line intensity to square of the continuum intensity Eline/E2 cont appears to be inversely correlated to the temperature. Turbulent velocities calculated using this ratio and the observed line-width temperatures show a peak at ~ 10 km s-1.
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Desai, J.N., Chandrasekhar, T. Temperature distribution in the corona from λ 5303 Å line-width observations: Eclipse of 1980 February 16 – Tentative evidence for a temperature maximum. J. Astrophys. Astr. 4, 65–74 (1983). https://doi.org/10.1007/BF02714200
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DOI: https://doi.org/10.1007/BF02714200