Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...141...10g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 141, no. 1, Dec. 1984, p. 10-16. Research supported by the Nederlandse Organis
Astronomy and Astrophysics
Astrophysics
42
Abundance, Hydroxyl Emission, Oscillator Strengths, Solar Spectra, Stellar Composition, Vibrational Spectra, Dipole Moments, Infrared Spectra, Oxygen, Solar Atmosphere, Spectral Line Width, Transition Probabilities
Scientific paper
High resolution solar spectra have permitted the measurement with great accuracy of equivalent widths of vibration-rotation lines of OH in the X2Pi state near 3-micron wavelength. Using recent theoretical results for the transition probabilities, a solar oxygen abundance of (8.93 + or - 0.02) is derived which is in perfect agreement with the abundance deduced from the OH pure rotation lines. The solar abundance of oxygen is therefore A(O) = 8.92 + or - 0.035, as inferred from the analysis of 43 vibration-rotation lines and 81 pure rotation lines of the OH molecule. It is confirmed that the dipole moment function of Werner, Rosmus and Reinsch (1983) together with the Holweger-Mueller (1974) solar atmosphere model are to be preferred in the analysis of the data.
Grevesse Nicolas
Sauval Jacques A.
van Dishoeck Ewine F.
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