• Temperature distribution in the corona from λ 5303 Å line-width observations: Eclipse of 1980 February 16 – Tentative evidence for a temperature maximum

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    • Keywords


      solar corona; l 5303 Å line widths; solar eclipse

    • 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 1.5 over a wide range of position angles. Least square analysis of the data indicates a tentative temperature maximum near 1.2 from the centre of the Sun. The ratio of peak line intensity to square of the continuum intensity Eline/E2cont 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.

    • Author Affiliations


      J. N. Desai1 T. Chandrasekhar1

      1. Physical Research Laboratory, Ahmedabad - 380009
    • Dates

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