J/ApJS/209/23ivo://CDS.VizieR/J/ApJS/209/23doi:10.26093/cds/vizier.22090023CDSMotoki Y.Tsunoda Y.Ozeki H.Kobayashi K.2014-02-21T05:01:29Z2014-02-05T11:18:25ZCDS support team

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

cds-question@unistra.frradio-spectroscopyatomic-physicsAminoacetonitrile, NH_2-CH_2_-CN, has been considered one of the important precursors of glycine, the simplest amino acid, and was identified in Sgr B2(N) by Belloche et al. (2008, Cat. J/A+A/482/179) based on their reanalysis of previous laboratory measurements. However, these laboratory measurements were limited to the 1mm wavelength region even for the normal species, and recent new radio telescopes like ALMA require rest frequencies in a higher frequency range. Therefore, we have extended the pure rotational spectra of aminoacetonitrile and its amino-hydrogen-deuterated isotopologues (NHDCH_2_CN and ND_2_CH_2_CN) up to 1.2THz and 0.6THz, respectively. Belloche et al. indicated that the normal species may have been misassigned in a previous microwave study by Bogey et al. (1990JMoSp.143..180B). We found that two more b-type spectral transitions were misassigned, and all b-type transition frequencies above K_a_=2 had to be remeasured. For isotopologues, spectra above 40 GHz were observed for the first time and higher order centrifugal distortion constants have been determined. The extension of the measurements helped improve the molecular constants. The errors in the frequency catalog data of normal and deuterated isotopologues are on the order of 100kHz up to 1.2THz and 0.6THz, respectively, which are precise enough for the future astronomical observations.2013ApJS..209...23Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/209/23CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/482/179 : Interferometric study of SgrB2(N) (Belloche+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/209/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/209/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/209/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/209/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/209/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/209/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJS/209/23/table1Transition frequencies of aminoacetonitrile (NH_2_-CH_2_-CN) and its deuterated formsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIsoIsotopologue (1)meta.id;phys.molcharJ'[1/82] The upper J quantum numberinstr.det.qe;stat.maxintKa'[0/23] The upper Ka quantum numberphys.atmol.qn;stat.maxintKc'[0/74] The upper Kc quantum numberphys.atmol.qn;stat.maxintJ"[0/81] The lower J quantum numberinstr.det.qe;stat.minintKa"[0/22] The lower Ka quantum numberphys.atmol.qn;stat.minintKc"[0/74] The lower Kc quantum numberphys.atmol.qn;stat.minintFreq[8820/1200905] The experimental rest frequencyMHzem.freqdoublee_Freq[0.03/2] Uncertainty in FreqMHzstat.errorfloatO-C[-1.6/2.3] The observed minus calculated valueMHzstat.fit.residualfloatRefData reference (2)meta.ref;pos.framechar