The abundances of the elements in the solar photosphere. VIII - Revised abundances of carbon, nitrogen and oxygen

Astronomy and Astrophysics – Astronomy

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Abundance, Electron Transitions, Gas Composition, Photosphere, Solar Atmosphere, Solar Spectra, Atmospheric Composition, Carbon, Limb Darkening, Line Spectra, Nitrogen, Oxygen, Solar Granulation

Scientific paper

All available atomic and molecular signatures of carbon, nitrogen and oxygen are integrated to provide solar photospheric abundances of the three elements. The CI 8727 wavelength line, the CH A-X and C2 Swan systems, the NI lines and the OI 6300 and 6363 wavelength lines are the principal sources for the abundances; the effects of such phenomena as solar granulation and infrared limb darkening on the assessments are mentioned. Abundance ratios (by number of atoms) are calculated as 0.56 for carbon/oxygen and 0.12 for nitrogen/oxygen.

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