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THz spectroscopy of H2D |
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| Authors: | T. Yonezu Y. Moriwaki T. Amano |
| Affiliation: | a Department of Physics, University of Toyama, Gofuku 3190, Toyama-shi, Toyama-ken 930-8555, Japan b Department of Chemistry, University of Waterloo, Waterloo, Ont., Canada N2L 3G1 |
| Abstract: | The 212 − 111 line of H2D+ at 2.363 THz that was detected toward Sgr B2 and identified based on a calculated line frequency has been measured in the laboratory precisely by using a tunable far-infrared spectrometer. All the available THz lines and known millimeter- and submillimeter-wave lines together with the combination differences derived from the infrared transitions are fitted to the Watson effective Hamiltonian. A set of improved molecular constants are obtained. |
| Keywords: | Tunable FIR Molecular ion Interstellar molecule |
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