title: THz rotational spectrum of H2F+.
abstract: In view of recent tremendous advance in astronomical observations in the submillimeter to THz region brought by the Herschel space craft, laboratory high-resolution spectroscopic investigations in that frequency region into unstable molecules, in particular, light hydride ions, are urgently needed. As a part of such endeavor, rotational transitions of H(2)F(+) were observed in the THz-region by using a tunable far-infrared spectrometer. These newly detected lines together with the submillimeter-wave lines obtained previously and the combination differences derived from infrared vibration-rotation lines were subject to a least-squares analysis that yielded a set of molecular constants with much better accuracy. The measured and predicted THz transition frequencies should prove to be a useful probe into detection of interstellar H(2)F(+).
authors.affiliation: Department of Chemistry, The University of Waterloo, Waterloo, Ontario N2L 3G1, Canada. tamano@uwaterloo.ca
authors.forename: T
authors.initials: T
authors.lastname: Amano
authors.forename: F
authors.initials: F
authors.lastname: Matsushima
authors.forename: T
authors.initials: T
authors.lastname: Shiraishi
authors.forename: C
authors.initials: C
authors.lastname: Shinozuka
authors.forename: R
authors.initials: R
authors.lastname: Fujimori
authors.forename: K
authors.initials: K
authors.lastname: Kawaguchi