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Measurements on the Lyman alpha corona

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Abstract

As a result of a collaborative rocket experiment carried out during the solar eclipse on 7 March, 1970, measurements have been made of the brightness of Lyman α from the corona, at heights between 5 × 104 and 5 × 105 km above the limb. The emission is shown to occur primarily through the resonance scattering of chromospheric Lyman α from the residual neutral hydrogen in the corona. Both the absolute value and radial fall-off of the brightness agree well with calculations based on solar density models. The Lyman α emission has similar variations around the limb to the white light corona, showing in particular an equatorial enhancement.

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Authors and Affiliations

  1. Astrophysics Research Unit, Culham Laboratory, Abingdon, Berkshire, England

    A. H. Gabriel

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  1. A. H. Gabriel
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Gabriel, A.H. Measurements on the Lyman alpha corona. Sol Phys 21, 392–400 (1971). https://doi.org/10.1007/BF00154290

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  • DOI: https://doi.org/10.1007/BF00154290

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