Some comments on band contour methods

Kidd, K.G.; King, G.W.

doi:10.1016/0022-2852(71)90250-5

Cited by 8 publications

(1 citation statement)

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“…MOLECULAR SPECTRAL SYNTHESIS METHODS The concept of Band Models was the earliest method of spectral synthesis to be developed. It often adopts a statistical approach to the distribution of lines in a band and their profiles (Goody, 1974;Penner, 1959;Plass, 1958;Kidd and King, 1971) . This method is widely used to model intensity distributions of polyatomic molecular spectral features.…”

Section: Introductionmentioning

confidence: 99%

Commission 14: Realistic Numerical Synthesis of Molecular Spectra

Nicholls

Cann

1985

Trans. Int. Astron. Union

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Spectrocopy is the classical diagnostic tool of astrophysics. Intensities and line shapes of well identified emission and/or absorption atomic and molecular features are used to provide information on species concentrations, and degree of excitation, from which gas kinetic, rotational, vibrational, electronic and excitation “temperatures” can be inferred when LTE conditions exist. Departures from LTE can also be determined spectroscopically. Diagnostic interpretation of spectra in optically thin circumstances is fairly straightforward. However, in optically thick conditions when the photon mean free path is very much less than the geometrical path, the emission spectrum is controlled by the absorption coefficient (Armstrong and Nicholls, 1972), (see equation 4a).

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Section: Introductionmentioning

confidence: 99%