J/MNRAS/415/181ivo://CDS.VizieR/J/MNRAS/415/181doi:10.26093/cds/vizier.74150181CDSFang X.Liu X.-W.2024-07-14T20:15:35Z2012-03-26T14:48:16ZCDS support team

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

cds-question@unistra.frplanetary-nebulaespectroscopyWe present very deep CCD spectrum of the bright, medium-excitation planetary nebula NGC 7009, with a wavelength coverage from 3040 to 11000{AA}. Traditional emission line identification is carried out to identify all the emission features in the spectra, based on the available laboratory atomic transition data. Since the spectra are of medium resolution, we use multi-Gaussian line profile fitting to deblend faint blended lines, most of which are optical recombination lines (ORLs) emitted by singly ionized ions of abundant second-row elements such as C, N, O and Ne.2011MNRAS.415..181Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/415/181CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/409/881 : Spectrosocpy of NGC 7009 (Phillips+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/415/181https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/415/181http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/415/181https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/415/181https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/415/181http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/415/181GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/415/181/table2Emission line list of NGC 7009recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlam.O? Observed wavelength0.1nmem.wldoublenullableFlux? Line flux, normalized to H{beta}=100phot.flux;arith.ratiodoublenullablee_Flux? Flux error%stat.error;phot.fluxfloatnullableu_FluxUncertainty flag of Flux errormeta.code.error;phot.fluxcharInt? Intensity, normalized to H{beta}=100phot.flux;em.opt;arith.ratiodoublenullableNote[*] Note for blending lines (1)meta.notecharIonIon designation (2)meta.id;phys.atmol.ionStagecharlam.L? Laboratory wavelength0.1nmem.wldoublenullableMultMultiplet numberphys.atmol.levelcharLowTLower termphys.atmol.termcharUppTUpper termphys.atmol.termcharg1[1/72]? g1 numberstat.fit.paramintnullableg2[1/98]? g2 numberstat.fit.paramintnullablen_g2[*] * when no g2 numbermeta.notechar