J/AJ/153/140ivo://CDS.VizieR/J/AJ/153/140doi:10.26093/cds/vizier.51530140CDSRicher M.G.Suarez G.Lopez J.A.Garcia Diaz M.T.2018-06-19T08:42:28Z2018-05-14T08:23:23ZCDS support team

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

cds-question@unistra.frplanetary-nebulaespectroscopyradial-velocityWe present spectroscopic observations of the C II {lambda}6578 permitted line for 83 lines of sight in 76 planetary nebulae at high spectral resolution, most of them obtained with the Manchester Echelle Spectrograph on the 2.1 m telescope at the Observatorio Astronomico Nacional on the Sierra San Pedro Martir. We study the kinematics of the C II {lambda}6578 permitted line with respect to other permitted and collisionally excited lines. Statistically, we find that the kinematics of the C II {lambda}6578 line are not those expected if this line arises from the recombination of C^2+^ ions or the fluorescence of C^+^ ions in ionization equilibrium in a chemically homogeneous nebular plasma, but instead its kinematics are those appropriate for a volume more internal than expected. The planetary nebulae in this sample have well-defined morphology and are restricted to a limited range in H{alpha} line widths (no large values) compared to their counterparts in the Milky Way bulge; both these features could be interpreted as the result of young nebular shells, an inference that is also supported by nebular modeling. Concerning the long-standing discrepancy between chemical abundances inferred from permitted and collisionally excited emission lines in photoionized nebulae, our results imply that multiple plasma components occur commonly in planetary nebulae.2017AJ....153..140Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/140CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001)J/A+AS/132/13 : Planetary nebulae radial velocities (Durand+ 1998)J/ApJS/157/371 : Recombination lines in planetary nebulaeJ/MNRAS/368/1959 : Chemical abundances for Hf 2-2 (Liu+, 2006)http://kincatpn.astrosen.unam.mx : SPM Kinematic Catalogue of Planetary Nebulaehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/140https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/153/140http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/153/140https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/153/140https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/153/140http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/153/140GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/153/140/table12 (Line Widths, Radial Velocities (table 1) and Nebular Sizes (table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/153/140/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/153/140/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/153/140/table12?GETtext/xml+votable180.050000true335.069291758.23794440.0055555555555555566/1223 1399 2979 2993 3819 11605 12405 12984 13044 13676 14063 14118 14279 14922 15172 15632 15639 21215 21600 22137 22166 22226 22660 23949 24361 28711 28718 28730 28733 28734 28754 28766 28774 28775 28777 28779 28780 28783 28819 28823 28838 28868 28870 28871 28881 28907 28922 28943 29056 29057 29083 29094 29146 29160 29236 29254 29257 29260 29286 29350 29454 29472 30208 30288 30637 31670 39935 40070 40279 42479 42490 42753 47921 48951https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/153/140?format=asciidefaultJ/AJ/153/140/table12Line Widths, Radial Velocities (table 1) and Nebular Sizes (table 2)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePlanetary nebula namemeta.id;meta.maincharSlit[abcdjk] Letter indicating the slit position from the online SPM Catalogue (http://kincatpn.astrosen.unam.mx/)meta.codecharPNGPlanetary nebula PNG name (LLL.l+BB.b)meta.idcharWobs6548[22/76]? [N II] {lambda}6548 observed line width (1)km/sspect.line.widthintnullableW6548[17/75]? [N II] {lambda}6548 line width corrected for broadening (1)km/sspect.line.widthintnullableRV6548[-231/215]? [N II] {lambda}6548 radial velocity (2)km/sphys.veloc;pos.heliocentricintnullableWobs6560[17/54]? He II {lambda}6560 observed line width (1)km/sspect.line.widthintnullableW6560[4/51]? He II {lambda}6560 line width corrected for broadening (1)km/sspect.line.widthintnullableRV6560[-228/157]? He II {lambda}6560 radial velocity (2)km/sphys.veloc;pos.heliocentricintnullableWobs6563[29/58] H{alpha} observed line width (1)km/sspect.line.widthintW6563[15/52] H{alpha} line width corrected for broadening (1)km/sspect.line.widthintRV6563[-230/214] H{alpha} radial velocity (2)km/sphys.veloc;pos.heliocentricintWobs6578[15/65] C II {lambda}6578 observed line width (1)km/sspect.line.widthintW6578[8/64] C II {lambda}6578 line width corrected for broadening (1)km/sspect.line.widthintRV6578[-234/210] C II {lambda}6578 radial velocity (2)km/sphys.veloc;pos.heliocentricintWobs6583[22/76] [N II] {lambda}6583 observed line width (1)km/sspect.line.widthintW6583[18/75] [N II] {lambda}6583 line width corrected for broadening (1)km/sspect.line.widthintRV6583[-232/213] [N II] {lambda}6583 radial velocity (2)km/sphys.veloc;pos.heliocentricintNGauss[1/2] Number of Gaussian component(s) used to measure the line widthsmeta.numberintD6560[2.5/30.3]? Diameter in the He II {lambda}6560 line (1)arcsecphys.angSizefloatnullableD6563[3.7/54.3] Diameter in the H{alpha} line (1)arcsecphys.angSizefloatD6578[2/42] Diameter in the C II {lambda}6578 line (1)arcsecphys.angSizefloatD6583[3.9/54.9] Diameter in the [N II] {lambda}6583 line (1)arcsecphys.angSizefloatQ[0/1] Quality flag (1)meta.code.qualintScale[0.312/0.624] Plate scalearcmin/pixinstr.scale;instr.platefloatRes[0.0503/0.1021] Spectral resolution (in {AA}/pix)0.1nm/pixspect.resolutionfloatADF[1.4/70]? O^2+^ abundance discrepancy factor from the literaturephys.abundfloatnullabler_ADFReference(s) for ADF (2)meta.ref;pos.framecharCat-linkDisplay data from the Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992, Cat. V/84)meta.numberintnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main