Computation of Frequencies and Linestrengths for Triatomic Molecules of Astronomical Interest

Autor: Steven Miller, Jonathan Tennyson, Hugh R.A. Jones, Andrew J. Longmore
Rok vydání: 1994
Zdroj: International Astronomical Union Colloquium. 146:296-309
ISSN: 0252-9211
DOI: 10.1017/s0252921100021412
Popis: Molecular bands have been used as a diagnostic of spectral type since the 1860's. TiO was first identified as the dominant feature in optical spectra of cool giants in 1904 (Fowler 1904). Many diatomic molecules have now been included (e.g. Jørgensen & Larsson 1990) in detailed calculations of stellar opacity and attention is starting to focus on the incorporation of accurate data for triatomics. Triatomic molecules have a much greater density of states than diatomics; bending vibrational bands - generally lower in frequency than bond-stretching modes - may contribute considerably to “filling in” spectral gaps.
Databáze: OpenAIRE
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