Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apjs...43..417p&link_type=abstract
Astrophysical Journal Supplement Series, vol. 43, July 1980, p. 417-433.
Astronomy and Astrophysics
Astronomy
3
Chlorides, Infrared Astronomy, Infrared Spectra, Molecular Spectra, Stellar Spectra, Zirconium Compounds, Line Spectra, Spectral Bands, Tables (Data), Transition Probabilities, Zirconium Oxides
Scientific paper
A series of infrared bands in the 0.97-1.15 micron region which is attributed to ZrCl is analyzed in light of the possibility that the bands may be observable in stellar spectra. Spectra of ZrO and ZrCl were produced by microwave discharge through a mixture of He, O and ZrCl4 and observed by Fourier transform spectrometer, resulting in the observation of 10 bands of the ZrCl system. Rotational quantum number assignments to the lines of the P and R branches observed are obtained and used to derive effective rotational constants for each substate, as well as zero-rotation origins of each subband. Shifts in wave numbers of rotational lines of the isotopes (Zr-92)(Cl-35)(Zr-94)(Cl-35) and (Zr-90)(Cl-37) relative to the more abundant (Zr-90)(Cl-35) are also observed. The observed molecular constants are shown to be in good agreement with those calculated in previous theoretical estimates.
Davis Stanley Peter
Galehouse Daniel C.
Phillips John G.
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