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On the Infrared A2Πi- X2∑+System of Aluminium Monoxide in Relation with the Spectra of M Giant- and Mira-Type Stars

Authors :
Bernard, A.
Gravina, R.
Source :
Zeitschrift für Naturforschung A; November 1984, Vol. 39 Issue: 11 p1049-1055, 7p
Publication Year :
1984

Abstract

From combinations between known ultraviolet transitions of the AlO molecule line positions in the A2Πi- X2∑+system are tentatively proposed. Indeed, the available data on the C2Πr → X2∑+and C2Πr→ A2Πitransitions permit us to derive about 2400 energy level differences in the A-X system corresponding to the six ν-connected bands 0-0, 0-1, 0-2, 1-0, 1-1 and 1-2. A unique and consistent set of rovibrational constants is derived from a global fitting, allowing to reproduce the observed differences with a total standard deviation of 0.053 cm-1. A catalogue of vacuum line wavenumbers in the six bands is generated and can be made available on request. The synthetic spectra are expected to represent properly the true spectra at least up to J ~ 35.5 and can therefore be of usefulness for the detection of the system in the spectra of M giant- and Mira-type stars.

Details

Language :
English
ISSN :
09320784 and 18657109
Volume :
39
Issue :
11
Database :
Supplemental Index
Journal :
Zeitschrift für Naturforschung A
Publication Type :
Periodical
Accession number :
ejs34997011
Full Text :
https://doi.org/10.1515/zna-1984-1106