J/A+A/590/A93ivo://CDS.VizieR/J/A+A/590/A93doi:10.26093/cds/vizier.35900093CDSMargules L.Belloche A.Muller H.S.P.Motiyenko R.A.Guillemin J.-C.,Garrod R.T.Menten K.M.2016-05-20T08:04:45Z2016-05-20T09:01:51ZCDS support team

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

cds-question@unistra.fratomic-physicsinterstellar-mediummolecular-cloudsradio-astronomyspectroscopyWe have performed a spectral line survey called Exploring Molecular Complexity with ALMA (EMoCA) toward Sagittarius B2(N) between 84.1 and 114.4GHz with the Atacama Large Millimeter/submillimeter Array (ALMA) in its Cycles 0 and 1. Line intensities of the main isotopic species of ethyl cyanide and its singly ^13^C-substituted isotopomers observed toward the hot molecular core Sagittarius B2(N2) suggest that the doubly ^13^C-substituted isotopomers should also be detectable. We want to determine the spectroscopic parameters of all three doubly ^13^C-substituted isotopologues of ethyl cyanide to search for them in our ALMA data. We investigated the laboratory rotational spectra of the three species between 150GHz and 990GHz. We searched for emission lines produced by these species in the ALMA spectrum of Sagittarius B2(N2). We modeled their emission and the emission of the ^12^C and singly ^13^C-substituted isotopologues assuming local thermodynamic equilibrium.2016A&A...590A..93Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/590/A93CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/493/565 : Deuterated and ^15^N ethyl cyanides (Margules+, 2009)J/A+A/500/1109 : Rotational spectrum of HCOO^13^CH_3_ (Carvajal+, 2009)J/A+A/538/A51 : Rotational spectrum of CH_3_CH(NH_2_)CN (Mollendal+, 2012)J/A+A/538/A119 : Spectrum of ^18^O-methyl formate HCO^18^OCH_3_ (Tercero+ 2012)J/A+A/540/A51 : Submm spectrum of deuterated glycolaldehydes (Bouchez+, 2012)J/A+A/543/A46 : Submillimeter spectrum of HCOOCD_2_H (Coudert+, 2012)J/A+A/543/A135 : New analysis of ^13^C-CH_3_CH_2_CN up to 1THz (Richard+, 2012J/A+A/544/A82 : Rotational spectroscopy of diisocyanomethane (Motiyenko+ 2012)J/A+A/548/A71 : Spectroscopy and ISM detection of formamide (Motiyenko+, 2012)J/A+A/549/A96 : mm and sub-mm spectra of 13C-glycolaldehydes (Haykal+, 2013)J/A+A/549/A128 : Singly deuterated isotopologues of formamide (Kutsenko+, 2013)J/A+A/552/A117 : Mono-deuterated dimethyl ether (Richard+, 2013)J/A+A/553/A84 : (Sub)mm spectrum of deuterated methyl cyanides (Nguyen+, 2013)J/A+A/559/A44 : Rotational spectrum of MAAN (CH_2_NCH_2_CN) (Motiyenko+, 2013)J/A+A/563/A137 : THz spectrum of methylamine (Motiyenko+, 2014)J/A+A/568/A58 : HCOO^13^CH_3_ rotational spectrum (Haykal+, 2014)J/A+A/579/A46 : Mono^13^C acetaldehydes mm/submm wave spectra (Margules+ 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/590/A93https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/590/A93http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/590/A93https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/590/A93https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/590/A93http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/590/A93GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadioOpticaldefaultJ/A+A/590/A93/s1CH_3_^13^CH_2_^13^CN: Measured frequencies, experimental frequencies,accuracies and residuals from the fitsNrLine numbermeta.id;meta.mainintKc'Upper Kc quantum numberphys.atmol.qn;stat.maxintrecnoRecord 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'Upper N quantum numberphys.atmol.qn;stat.maxintKa'Upper Ka quantum numberphys.atmol.qn;stat.maxintFreqObserved transition frequencyMHzem.freqdoubleuncExperimental uncertaintyMHzstat.errorfloatO-CObserved - Calculated frequenciesMHzstat.fit.residualfloatWeight? Weight for blended linesMHzstat.weightdoublenullableJ/A+A/590/A93/s2^13^CH_3_CH_2_^13^CN: Measured frequencies, experimental frequencies,accuracies and residuals from the fitsNrLine numbermeta.id;meta.mainintJ'Upper N quantum numberphys.atmol.qn;stat.maxintrecnoRecord number assigned by the VizieR team. 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