Solar Physics

, Volume 21, Issue 2, pp 392–400 | Cite as

Measurements on the Lyman alpha corona

  • A. H. Gabriel


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.


Hydrogen Similar Variation Density Model Solar Eclipse Neutral Hydrogen 
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Copyright information

© D. Reidel Publishing Company 1971

Authors and Affiliations

  • A. H. Gabriel
    • 1
  1. 1.Astrophysics Research UnitCulham LaboratoryAbingdon, BerkshireEngland

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