YO molecule in the sun

Details YO molecule in the sun YO molecule in the sun

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.168..119s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 168, no. 1, June 1990, p. 119-129. Research supported by the Council of Sc

Astronomy and Astrophysics

Astrophysics

Molecular Spectra, Stellar Composition, Yttrium Oxides, Franck-Condon Principle, Molecular Energy Levels, Vibrational Spectra

Scientific paper

The physical condition of an emitter is estimated from the relative intensities of the bands of the emitting molecule by using the potential energy curves, r-bar centroids, and Franck-Condon factors (FCFs) of the bandheads in the band system. The (0,0) band of the (A - X) system of YO has been found in the umbral spectrum of the sun and in M-type stellar spectra. Here, vibrational FCFs, r-bar centroids, and Morse potential energy curves of X 2Sigma(+), A 2Pi(r), A-prime 2Pi(r), and A-double prime 2Pi(r) states of YO are analyzed using experimental data available in the literature.

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