J/A+A/549/A38ivo://CDS.VizieR/J/A+A/549/A38doi:10.26093/cds/vizier.35490038CDSTamassia F.Bizzocchi L.Degli Esposti C.Dore L.Di Lauro M.,Fusina L.Villa M.Cane E.2013-05-20T18:02:32Z2012-12-13T09:31:24ZCDS support team

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

cds-question@unistra.fratomic-physicsDiacetylene, C_4_H_2_, has been identified in several astronomical environments through its infrared spectrum. In contrast, monodeuterated diacetylene (DC_4_H) has not been detected in space so far owing to the low isotopic abundance of deuterated species but also to the rather poor laboratory spectroscopic characterisation of this molecule. The aim of this work is to provide accurate spectroscopic parameters for DC_4_H to achieve reliable predictions for both its spectra at millimetre and infrared wavelengths. We studied the rotational spectrum of DC_4_H in the range 85-615GHz by millimetre-wave spectroscopy and the infrared spectrum below 1000cm-1 by high-resolution, Fourier-transform spectroscopy. Several pure rotational transitions were recorded in the ground state and in excited vibrational bending states. The three fundamental bands v6, v7, and v8 have been identified and assigned in the infrared spectrum.2013A&A...549A..38Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/549/A38CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/549/A38https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/549/A38http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/549/A38https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/549/A38https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/549/A38http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/549/A38GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/549/A38/table4Measured and predicted line positionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'[1/120] Upper level J quantum numberinstr.det.qeintl'[0/1] Upper level l quantum numberphys.atmol.qnintp'[ef] Upper level e(-)/f(+) parityphys.atmol.paritycharv'[0/9] Upper level v quantum numberphys.mol.qnintJ[0/120] Lower level J quantum numberinstr.det.qeintl[0/1] Lower level l quantum numberphys.atmol.qnintp[ef] Lower level e(-)/f(+) parityphys.atmol.paritycharv[0/9] Lower level v quantum numberphys.mol.qnintRFmeas? Measured line position (in rest frame) (2)em.freqdoublenullablee_RFmeas? Assumed uncertainties (2)stat.errorfloatnullableRFpredPredicted line position (in rest frame) (2)em.freqdoublee_RFpredEstimated 1{sigma} level error (2)stat.errordoublex_RFUnits for RFmeas, RFunc, RFpred and sigma (2)meta.unitcharSTransition strengthspect.line.strength;phys.atmol.transitiondouble