Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...232..225g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 232, no. 1, June 1990, p. 225-230. Research supported by FNRS and Robert A. We
Astronomy and Astrophysics
Astrophysics
91
Hydrogen Compounds, Line Spectra, Nitrogen Compounds, Rotational Spectra, Solar Spectra, Vibrational Spectra, Fourier Transformation, Molecular Oscillations, Oscillator Strengths, Transition Probabilities
Scientific paper
High resolution solar spectra obtained from the ATMOS Fourier Transform Spectrometer (Spacelab 3 flight on April 29 - May 6, 1985) made it possible to detect for the first time vibration-rotation lines of NH from the X3 Sigma(-) state near 3 microns. Using recent theoretical results for the transition probabilities of 23 selected measured lines of the 1-0 and 2-1 bands, a solar abundance of nitrogen of 8.06 + or - 0.07 is derived. This value is compared with the result derived from N I lines and agrees with the abundance obtained from the 3s-3p, 3p-3d and 3s-prime - 3p-prime transitions, A(N) = 8.00 + or - 0.09. The final recommended solar abundance of nitrogen is A(N) = 8.00 + or - 0.05.
Farmer Crofton B.
Grevesse Nicolas
Lambert David L.
Norton Heather R.
Sauval Jacques A.
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