J/A+A/398/L11ivo://CDS.VizieR/J/A+A/398/L11doi:10.26093/cds/vizier.33989011CDSThorwirth S.Lichau H.2004-05-25T13:21:04Z2004-05-25T13:20:57ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsThe pure rotational spectrum of the hydrocarbon vinylacetylene in its ground vibrational state has been investigated from 80 to 165 GHz, covering the rotational quantum numbers 8<=J=<18 and 0<=Ka<=17, n order to provide accurate rest frequencies for radioastronomical searches. Moreover, quantum chemical calculations of the dipole moment components {mu}a and {mu}b have been performed leading to the result {mu}a~0.4D. The value for the dipole moment component {mu}b is very low and lies in the range of several thousandth to a few hundredth of a Debye.2003A&A...398L..11Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/398/L11CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/398/L11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/398/L11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/398/L11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/398/L11https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/398/L11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/398/L11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/398/L11/table1Laboratory spectroscopic datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'Quantum number J' of the respective transitions in the form J' Ka' Kc' - J" Ka" Kc"phys.atmol.qnintKa'Quantum number Ka' of the respective transitions in the form J' Ka' Kc' - J" Ka" Kc"phys.atmol.qnintKc'Quantum number Kc' of the respective transitions in the form J' Ka' Kc' - J" Ka" Kc"phys.atmol.qnintJ"Quantum number J" of the respective transitions in the form J' Ka' Kc' - J" Ka" Kc"phys.atmol.qnintKa"Quantum number Ka" of the respective transitions in the form J' Ka' Kc' - J" Ka" Kc"phys.atmol.qnintKc"Quantum number Kc" of the respective transitions in the form J' Ka' Kc' - J" Ka" Kc"phys.atmol.qnintFreqExpNewly obtained experimental transition frequencyMHzem.freqdoubleFreqCalCalculated transition frequency obtained by the least squares fitMHzem.freqdoubleResResiduals (obs.-calc.) for resolved lines as well as the differences of two single lines to the intensity weighted average of the unresolved asymmetry doublet (cf. column 7).MHzstat.fit.residualdoubleErrExperimental uncertainties attributed to the lines.stat.errordoubleFreqCalw? Intensity weighted average of the unresolved asymmetry doubletsMHzem.freqdoublenullableResw? (Obs.-Calc) for the intensity weighted average. Relevant number for unresolved asymmetry doublets in the fit.MHzstat.fit.residualdoublenullableWT? Intensity weight of a given transition.stat.weightfloatnullable