Astrophysics and Astronomy Commons^™

Fourier Transform Spectroscopy Of The A3Π–X3Σ− Transition Of Oh+, James N. Hodges, Peter F. Bernath

Chemistry & Biochemistry Faculty Publications

The OH⁺ ion is of critical importance to the chemistry in the interstellar medium and is a prerequisite for the generation of more complex chemical species. Submillimeter and ultraviolet observations rely on high quality laboratory spectra. Recent measurements of the fundamental vibrational band and previously unanalyzed Fourier transform spectra of the near-ultraviolet A³Π-X 3Σ^- electronic spectrum, acquired at the National Solar Observatory at Kitt Peak in 1989, provide an excellent opportunity to perform a global fit of the available data. These new optical data are approximately four times more precise as compared to the previous values. …