J/ApJS/124/195ivo://CDS.VizieR/J/ApJS/124/195doi:10.26093/cds/vizier.21240195CDSHora J.L.Latter W.B.Deutsch L.K.2018-01-11T12:49:25Z2008-01-20T19:01:26ZCDS support team

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

cds-question@unistra.frplanetary-nebulaeinfrared-astronomyspectroscopyWe present medium-resolution (R~700) near-infrared (lambda=1-2.5m) spectra of a sample of planetary nebulae (PNe). A narrow slit was used which sampled discrete locations within the nebulae; observations were obtained at one or more positions in the 41 objects included in the survey. The PN spectra fall into one of four general categories: HI emission line-dominated PNe, HI and H_2_ emission line PNe, H_2_ emission line-dominated PNe, and continuum-dominated PNe. These categories correlate with morphological type, with the elliptical PNe falling into the first group, and the bipolar PNe primarily in the H_2_ and continuum emission groups. The categories also correlate with C/O ratio, with the O-rich objects generally falling into the first group and the C-rich objects in the other groups. Other spectral features were observed in all categories, such as continuum emission from the central star, C_2_, CN, and CO emission, and warm dust continuum emission toward the long wavelength end of the spectra. Molecular hydrogen was detected for the first time in four PNe. An excitation analysis was performed using the H_2_ line ratios for all of the PN spectra in the survey where a sufficient number of lines were observed.1999ApJS..124..195Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/124/195CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)V/127 : MASH Catalog of Planetary Nebulae (Parker+ 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/124/195https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/124/195http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/124/195https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/124/195https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/124/195http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/124/195GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/124/195/table1 (PN survey summary)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/124/195/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/124/195/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/124/195/table1?GETtext/xml+votable180.050000true63.565675-12.739452780.0055555555555555566/1238 1399 1552 1562 3353 3819 6146 9233 11605 12222 13297 13676 13995 14279 14440 14443 14853 15172 15384 15430 15435 15448 15741 21215 21326 21609 22093 22660 23389 23704 23949 30472 30615 30656 30664 30803 31670 31775 40279 40621 48951https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/124/195?format=asciiInfrareddefaultJ/ApJS/124/195/fluxesLine fluxesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Source[1-3] Source features (1)meta.notecharSourceSource designation (2)meta.id;meta.maincharlambdaWavelength (3)0.1nmem.wlintFlux? Line flux (4)1e-17W.m**-2phot.fluxdoublenullablee_Flux? rms uncertainty on Flux1e-17W.m**-2stat.error;phot.fluxfloatnullableIdentIdentification (5)meta.id;spect.lineJ/ApJS/124/195/table8H_2_ excitation analysis resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject/Positionmeta.idcharUV[Yes/No ?-] Presence of UV-excited H_2_ linesmeta.notecharn_UV[4/6]? Note (1)meta.noteintnullableTex(J)? Excitation temperature (2)Kphys.atmol.excitationintnullableE_Tex(J)? Error on Tex(J) (upper limit)Kstat.error;stat.maxintnullablee_Tex(J)? Error on Tex(J) (lower limit)Kstat.errorintnullableUVratio? H_2_ 2-1S(1)/1-0S(1) line ratio ({lambda}=22471/21213{AA})spect.line.intensity;arith.ratiofloatnullableO/P? ortho-to-para (O/P) H_2_ abundance ratio (3)phys.abundfloatnullablee_O/P? rms uncertainty on O/Pstat.errorfloatnullableAV? Visual attenuation (4)magphys.absorptionfloatnullableE_AV? Error on AV (upper limit)magstat.error;stat.maxfloatnullablee_AV? Error on AV (lower limit)magstat.errorfloatnullableJ/ApJS/124/195/table1PN survey summarySNameSimbad name of the PNmeta.idcharPosPositions information (2)meta.notecharSlitSlit orientationobs.paramcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/41] Sequential numbermeta.recordintNameObject namemeta.id;meta.maincharn_Name[e] e: New detection of H_2_meta.notecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainPNGPNG designation (1)meta.idcharObsDateObservation date (UT)time.epoch;obsnullableObsDate2Additional observation date (MM-DD)time.epochcharSpecCompSpectral components (3)meta.noteMClassClassical morphology (4)meta.code;src.morphcharSp1Name of spectrum file in subdirectory sp (5)meta.id;meta.filecharSp2Name of spectrum file in subdirectory sp (5)meta.id;meta.filecharSp3Name of spectrum file in subdirectory sp (5)meta.id;meta.filecharSp4Name of spectrum file in subdirectory sp (5)meta.id;meta.filecharSp5Name of spectrum file in subdirectory sp (5)meta.id;meta.filecharLines1Line fluxes: first source name in fluxes.datmeta.ref.urlcharLines2Line fluxes: second source name in fluxes.datmeta.ref.urlcharLines3Line fluxes: third source name in fluxes.datmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar