J/ApJS/117/427ivo://CDS.VizieR/J/ApJS/117/427doi:10.26093/cds/vizier.21170427CDSNummelin A.Bergman P.Hjalmarson A.Friberg P.Irvine W.M.,Millar T.J.Ohishi M.Saito S.1999-06-19T21:26:34Z1999-06-19T21:25:52ZCDS support team

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

cds-question@unistra.frinterstellar-mediumspectroscopyradio-astronomyWe have surveyed the frequency band 218.30-263.55GHz toward the core positions N and M and the quiescent cloud position NW in the Sgr B2 molecular cloud using the Swedish-ESO Submillimetre Telescope. In total 1730, 660, and 110 lines were detected in N, M, and NW, respectively, and 42 different molecular species were identified. The number of unidentified lines are 337, 51, and eight. Toward the N source, spectral line emission constitutes 22% of the total detected flux in the observed band, and complex organic molecules are the main contributors. Toward M, 14% of the broadband flux is caused by lines, and SO2 is here the dominant source of emission. NW is relatively poor in spectral lines and continuum. In this paper we present the spectra together with tables of suggested line identifications.1998ApJS..117..427Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/117/427CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/117/427https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/117/427http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/117/427https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/117/427https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/117/427http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/117/427GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJS/117/427/table3Line identifications toward Sagittarius B2(N)RemRemarksmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqObserved frequencyMHzem.freqintTmb? Peak main-beam brightness temperatureKobs.paramfloatnullableDeltaV? Velocity widthkm/sspect.line.widthintnullableRefOrion references (1)meta.refcharIdenIdentificationmeta.idcharJ/ApJS/117/427/table4Line identifications toward Sagittarius B2(M)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTmb? Peak main-beam brightness temperatureKobs.paramfloatnullableFreqObserved frequencyMHzem.freqintDeltaV? Velocity widthkm/sspect.line.widthintnullableRefOrion references (1)meta.refcharIdenIdentificationmeta.idcharRemRemarksmeta.notecharJ/ApJS/117/427/table5Line identifications toward Sagittarius B2(NW)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqObserved frequencyMHzem.freqintTmb? Peak main-beam brightness temperatureKobs.paramfloatnullableDeltaV? Velocity widthkm/sspect.line.widthintnullableRefOrion references (1)meta.refcharIdenIdentificationmeta.idcharRemRemarksmeta.notecharJ/ApJS/117/427/tab6-45Lines listed species by speciesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElElement (1)phys.atmol.elementcharRFreqRest frequencyMHzem.freqdoubleStateState (2)phys.molcharTransTransition (3)meta.id;phys.atmol.transitioncharn_TransNote on transition (4)meta.notecharEuUpper state energy (5)Kphys.energy;phys.atmol.levelintAulA-coefficient (5)s**-1phys.atmol.transProbdoubleN? Observed integrated intensity at Sgr B2(N) (6)K.km/sspect.line.intensityfloatnullablen_N[uda] Note (7)meta.notecharM? Observed integrated intensity at Sgr B2(M)(6)K.km/sspect.line.intensityfloatnullablen_M[udba] Note (7)meta.notecharNW? Observed integrated intensity at Sgr B2(NW)(6)K.km/sspect.line.intensityfloatnullablen_NW[uda] Note (7)meta.notecharRemRemarks (8)meta.notecharJ/ApJS/117/427/table46Unidentified linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqObserved frequency (1)MHzem.freqintN? Observed integrated intensity at Sgr B2(N)K.km/sspect.line.intensityfloatnullableM? Observed integrated intensity at Sgr B2(M)K.km/sspect.line.intensityfloatnullableNW? Observed integrated intensity at Sgr B2(NW) (2)K.km/sspect.line.intensityfloatnullableRemRemarks (3)meta.notechar