J/A+A/548/A71ivo://CDS.VizieR/J/A+A/548/A71doi:10.26093/cds/vizier.35480071CDSMotiyenko R. A.Tercero B.Cernicharo J.Margules L.2013-03-06T21:01:13Z2012-11-23T09:53:50ZCDS support team

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

cds-question@unistra.fratomic-physicsFormamide is the simplest bearer of peptide bond detected in the interstellar medium (ISM). There still exists a lack of laboratory data on its rotational spectrum in THz domain. We measured the rotational spectrum of formamide in the frequency range 400-950GHz. The ground and the first excited vibrational state of the normal species as well as the ground state of ^13^C isotopic species were analysed. The results obtained represent an extension by a factor of two in frequency range com- pared to previous studies. Among all transitions frequencies in the dataset about 45% are new measurements. A reliable set of rotational constants allows accurate predictions of transition frequencies in THz domain. Based on the spectroscopic results the v12=1 excited vibrational state of formamide was detected in the IRAM 30m line survey of Orion KL for the first time in the ISM.2012A&A...548A..71Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/548/A71CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/544/A82 : Rotational spectroscopy of diisocyanomethane (Motiyenko+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/548/A71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/548/A71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/548/A71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/548/A71https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/548/A71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/548/A71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/548/A71/table4Assigned rotational transitions of the ground state of the parent isotopologue of formamiderecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ"Upper J quantum numberinstr.det.qe;stat.maxintKa"Upper Ka quantum numberphys.atmol.qn;stat.maxintKc"Upper Kc quantum numberphys.atmol.qn;stat.maxintF"? Upper F quantum numberphys.atmol.qnintnullableJ'Lower J quantum numberinstr.det.qe;stat.minintKaLower Ka quantum numberphys.atmol.qn;stat.minintKc'Lower Kc quantum numberphys.atmol.qn;stat.minintF'? Lower F quantum numberphys.atmol.qnintnullableFreqObserved transition frequencyMHzem.freq;phys.atmol.transitiondoubleO-CIndividual residuals of the fitMHzstat.fit.residualfloate_FreqUncertainty of measurementsMHzstat.errorfloatO-Cbl? Residuals of the blended componentsMHzstat.fit.residualfloatnullableIbl? Relative intensity for blended line componentsspect.line.intensity;arith.ratiofloatnullableJ/A+A/548/A71/table5Assigned rotational transitions of the v12=1 state of the parent isotopologue of formamideKc'Lower Kc quantum numberphys.atmol.qn;stat.minintF'? Lower F quantum numberphys.atmol.qnintnullableKa"Upper Ka quantum numberphys.atmol.qn;stat.maxintKc"Upper Kc quantum numberphys.atmol.qn;stat.maxintF"? Upper F quantum numberphys.atmol.qnintnullableJ'Lower J quantum numberinstr.det.qe;stat.minintKaLower Ka quantum numberphys.atmol.qn;stat.minintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ"Upper J quantum numberinstr.det.qe;stat.maxintFreqObserved transition frequencyMHzem.freq;phys.atmol.transitiondoubleO-CIndividual residuals of the fitMHzstat.fit.residualfloate_FreqUncertainty of measurementsMHzstat.errorfloatO-Cbl? Residuals of the blended componentsMHzstat.fit.residualfloatnullableIbl? Relative intensity for blended line componentsspect.line.intensity;arith.ratiofloatnullableJ/A+A/548/A71/table6Assigned rotational transitions of the ground state of the ^13^C isotopologue of formamideF"? Upper F quantum numberphys.atmol.qnintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ"Upper J quantum numberinstr.det.qe;stat.maxintKa"Upper Ka quantum numberphys.atmol.qn;stat.maxintKc"Upper Kc quantum numberphys.atmol.qn;stat.maxintJ'Lower J quantum numberinstr.det.qe;stat.minintKaLower Ka quantum numberphys.atmol.qn;stat.minintKc'Lower Kc quantum numberphys.atmol.qn;stat.minintF'? Lower F quantum numberphys.atmol.qnintnullableFreqObserved transition frequencyMHzem.freq;phys.atmol.transitiondoubleO-CIndividual residuals of the fitMHzstat.fit.residualfloate_FreqUncertainty of measurementsMHzstat.errorfloatO-Cbl? Residuals of the blended componentsMHzstat.fit.residualfloatnullableIbl? Relative intensity for blended line componentsspect.line.intensity;arith.ratiofloatnullable