Laboratory measurement of the J, K = 1,0-{-0,0+} transition of ortho-D{3}O+

Details Laboratory measurement of the J, K = 1,0-{-0,0+} transition of ortho-D{3}O+ Laboratory measurement of the J, K = 1,0-{-0,0+} transition of ortho-D{3}O+

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...441.1039f&link_type=abstract

Astronomy and Astrophysics, Volume 441, Issue 3, October III 2005, pp.1039-1041

Astronomy and Astrophysics

Astrophysics

Molecular Data, Line: Identification, Ism: Molecules

Scientific paper

The J,K=1,0--0,0+ transition of ortho-D3O+ was measured by laboratory submillimetre-wave spectroscopy using a source-modulated spectrometer combined with a hollow-cathode free-space cell. The D3O+ ion was generated by a dc glow discharge of D2O. A single line, which showed characteristic behaviour of a molecular ion, was observed at exactly the frequency predicted by the molecular constants previously determined by Araki et al. (1999, Mol. Phys., 97, 177). The measured line frequency was corrected for the ion-drift Doppler shift and determined to be 798 713.814 ± 0.077 MHz with one standard error of the measurements in parentheses. The lowest J,K transition of ortho-D3O+ can be used as a probe to investigate the ortho to para ratio or the ortho and para to meta ratio of interstellar D3O+ in highly depleted molecular cores.

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