Is CH(+) present in the solar spectrum?

Details Is CH(+) present in the solar spectrum? Is CH(+) present in the solar spectrum?

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasj...42..737s&link_type=abstract

Astronomical Society of Japan, Publications (ISSN 0004-6264), vol. 42, no. 5, 1990, p. 737-742.

Astronomy and Astrophysics

Astronomy

3

Electron Transitions, Hydrocarbons, Molecular Ions, Solar Atmosphere, Solar Spectra, Spectrum Analysis, Stellar Composition, Atmospheric Models, Line Spectra, Local Thermodynamic Equilibrium, Methyl Compounds, Oscillator Strengths, Photosphere

Scientific paper

Identification of the A1Pi-X1Sigma transitions of the CH(+) molecules in the solar spectrum was reinvestigated by using new laboratory data on molecules, standard photospheric models, and the KPNO and the Liege solar atlases. It is believed that CH(+) lines may not be detectable in the solar spectrum, though the predicted upper limits of equivalent widths exceed the observed upper limit by a factor of 6. A possible explanation for the absence of CH(+) lines is also suggested.

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