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H and K (Ca II) emissions as observed in coronal spectrum in the July 20, 1963 solar eclipse

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Abstract

From a detailed analysis of a coronal spectrum taken from a DC-8 jet airplane during the Eclipse of 20 July, 1963 a rough model of a coronal cold region (T ≈ 105 K) has been obtained.

The model explains the presence of the abnormal H and K (Ca II) emissions and the large amount of F corona present in the spectrum.

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Authors and Affiliations

  1. Osservatorio Astrofisico di Arcetri, Firenze, Italy

    F. Cavallini

  2. Istituto di Astronomia dell'Università di Firenze, Firenze, Italy

    A. Righini

Authors
  1. F. Cavallini
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  2. A. Righini
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Cavallini, F., Righini, A. H and K (Ca II) emissions as observed in coronal spectrum in the July 20, 1963 solar eclipse. Sol Phys 45, 291–299 (1975). https://doi.org/10.1007/BF00158451

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  • DOI: https://doi.org/10.1007/BF00158451

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