J/A+A/623/A93ivo://CDS.VizieR/J/A+A/623/A93doi:10.26093/cds/vizier.36230093CDSCoutens A.Zakharenko O.Lewen F.Joergensen J.K.Schlemmer S.,Mueller H.S.P.2019-03-21T12:58:09Z2019-03-11T08:11:48ZCDS support team

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

cds-question@unistra.frinterstellar-mediumspectroscopyatomic-physicsCyanamide is one of the few interstellar molecules containing two chemically different N atoms. It was detected recently toward the solar-type protostar IRAS 16293-2422 B together with H_2_N^13^CN and HDNCN in the course of the Atacama Large Millemeter/submillimeter Array (ALMA) Protostellar Interferometric Line Survey (PILS). The detection of the 15N isotopomers or the determination of upper limits to their column densities was hampered by the lack of accurate laboratory data at the frequencies of the survey. We wanted to determine spectroscopic parameters of the ^15^N isotopomers of cyanamide that are accurate enough for predictions well into the submillimeter region and to search for them in the PILS data.2019A&A...623A..93Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/623/A93CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/623/A93https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/623/A93http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/623/A93https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/623/A93https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/623/A93http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/623/A93GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/623/A93/h215ncnTransitions included in the fit of H_2_^15^NCNJ"Lower state J quantum numberphys.atmol.configurationintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'Upper state J quantum numberphys.atmol.configurationintKa'Upper state Ka quantum numberphys.atmol.qnintKc'Upper state Kc quantum numberphys.atmol.qnintv'Upper state inversion state (0: 0^+^, 1: 0^-^)phys.atmol.qnintKa"Lower state Ka quantum numberphys.atmol.qnintKc"Lower state Kc quantum numberphys.atmol.qnintv"Lower state inversion state (0: 0^+^, 1: 0^-^)phys.atmol.qnintFreqObsObserved transition frequencyMHzem.freqdoublee_FreqObsExperimental uncertaintyMHzstat.errordouble(O-C)Observed minus calculated frequency (for group of lines if they are at the same frequency)MHzem.freq;stat.fit.omcdoublewb? Weight of the component in group of linesphys.atmol.weightfloatnullableNotesSource of data (1)meta.notecharJ/A+A/623/A93/h2n13cnTransitions included in the fit of H_2_N^13^CNrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'Upper state J quantum numberphys.atmol.configurationintKa'Upper state Ka quantum numberphys.atmol.qnintKc'Upper state Kc quantum numberphys.atmol.qnintv'Upper state inversion state (0: 0^+^, 1: 0^-^)phys.atmol.qnintJ"Lower state J quantum numberphys.atmol.configurationintKa"Lower state Ka quantum numberphys.atmol.qnintKc"Lower state Kc quantum numberphys.atmol.qnintv"Lower state inversion state (0: 0^+^, 1: 0^-^)phys.atmol.qnintFreqObsObserved transition frequencyMHzem.freqdoublee_FreqObsExperimental uncertaintyMHzstat.errordouble(O-C)Observed minus calculated frequency (for group of lines if they are at the same frequency)MHzem.freq;stat.fit.omcdoublewb? Weight of the component in group of linesphys.atmol.weightfloatnullableNotesSource of data (1)meta.notecharJ/A+A/623/A93/h2nc15nTransitions included in the fit of H_2_NC^15^NrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'Upper state J quantum numberphys.atmol.configurationintKa'Upper state Ka quantum numberphys.atmol.qnintKc'Upper state Kc quantum numberphys.atmol.qnintv'Upper state inversion state (0: 0^+^, 1: 0^-^)phys.atmol.qnintJ"Lower state J quantum numberphys.atmol.configurationintKa"Lower state Ka quantum numberphys.atmol.qnintKc"Lower state Kc quantum numberphys.atmol.qnintv"Lower state inversion state (0: 0^+^, 1: 0^-^)phys.atmol.qnintFreqObsObserved transition frequencyMHzem.freqdoublee_FreqObsExperimental uncertaintyMHzstat.errordouble(O-C)Observed minus calculated frequency (for group of lines if they are at the same frequency)MHzem.freq;stat.fit.omcdoublewb? Weight of the component in group of linesphys.atmol.weightfloatnullableNotesSource of data (1)meta.notechar