1987
DOI: 10.1016/0022-2852(87)90099-3
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Accurate rotational constants of CO, HCl, and HF: Spectral standards for the 0.3- to 6-THz (10- to 200-cm−1) region

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Cited by 152 publications
(66 citation statements)
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“…We observed the J = 1−0 transition of HF, with rest frequency 1232.4763 GHz (Nolt et al 1987), in the upper sideband of the Band 5a HIFI receiver. To help determine whether any observed feature did indeed lie in the upper sideband, three observations were carried out with slightly different settings of the local oscillator (LO) frequency.…”
Section: Observations and Data Reductionmentioning
confidence: 89%
“…We observed the J = 1−0 transition of HF, with rest frequency 1232.4763 GHz (Nolt et al 1987), in the upper sideband of the Band 5a HIFI receiver. To help determine whether any observed feature did indeed lie in the upper sideband, three observations were carried out with slightly different settings of the local oscillator (LO) frequency.…”
Section: Observations and Data Reductionmentioning
confidence: 89%
“…The much smaller splitting caused by the I = 1/2 spin of the H nucleus can be resolved in the laboratory (Kaiser 1970;Cazzoli & Puzzarini 2004), but not in astronomical observations. The HF J(1−0) line at 1232.4762 GHz (Nolt et al 1987) was observed in the upper side band of the band 5a receiver. Notes.…”
Section: Observationsmentioning
confidence: 94%
“…This is large enough to avoid any reference position contamination from the hot core and shock, but might encompass emission from the extended molecular ridge. Both HF and para-H 18 2 O have high dipole moments and fast (>10 −2 s −1 ) spontaneous de-excitation Nolt et al 1987) and para-H 18 2 O 1 11 −0 00 (at 1101.698256 GHz) towards Orion BN/KL (blue and red, respectively). The region of low-velocity HF absorption is highlighted in grey.…”
Section: First Detection Of Submm Absorption Towards Orionmentioning
confidence: 99%