On the interstellar abundance of the CH+ radical

Details On the interstellar abundance of the CH+ radical On the interstellar abundance of the CH+ radical

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...193..741b&link_type=abstract

Astrophysical Journal, vol. 193, Nov. 1, 1974, pt. 1, p. 741-745.

Astronomy and Astrophysics

Astrophysics

25

Abundance, Free Radicals, Interstellar Gas, Molecular Spectra, Emission Spectra, Gas Spectroscopy, Spectral Resolution, Transition Probabilities

Scientific paper

The lifetimes of the 1 Pi, 1 Delta, and 3 Sigma states in CH+ have been directly measured at high resolution using the high-frequency deflection technique. In particular, eight studied bands of the A 1Pi - X 1Sigma system yield considerably longer lifetimes than those obtained earlier. The new f-values are more in agreement with recent theoretical calculations and demand a corresponding increase in the estimate of the interstellar CH+ abundance.

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