J/AZh/82/437ivo://CDS.VizieR/J/AZh/82/437CDSHolovatyy V.V.Havrilova N.V.2017-12-06T07:38:52Z2006-05-27T21:11:51ZCDS support team

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

cds-question@unistra.frplanetary-nebulaechemical-abundancesastronomical-modelsstellar-atmospheresThe results of a study of the chemical compositions of Galactic planetary nebulae taking into account two types of inhomogeneity in the nebular gas density in their envelopes are reported. New analytical expressions for the ionization correction factors have been derived and are used to determine the chemical compositions of the nebular gas in Galactic planetary nebulae. The abundances of He, N, O, Ne, S, and Ar have been found for 193 objects. The Y-Z diagrams for various He abundances are analyzed for type II planetary nebulae separately and jointly with HII regions. The primordial helium abundance Yp and enrichment ratio dY/dZ are determined, and the resulting values are compared with the data of other authors. Radial abundance gradients in the Galactic disk are studied using type II planetary nebulae.2005AZh....82..437Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/82/437CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/84 : Galactic Planetary Nebulae Strasbourg-ESO Cat. (Acker+, 1992)J/A+A/280/581 : Chemical abundances of PNe (Pasquali+, 1993)J/A+A/380/300 : Abundances of PN towards Galactic bulge (Escudero+, 2001)J/A+A/423/199 : Chemical abundances of planetary nebulae (Costa+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/82/437https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/82/437http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/82/437https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AZh/82/437https://vizier.iucaa.in/viz-bin/votable?-source=J/AZh/82/437http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AZh/82/437GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AZh/82/437/objects (Object coordinates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AZh/82/437/objects?https://vizier.iucaa.in/viz-bin/conesearch/J/AZh/82/437/objects?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AZh/82/437/objects?GETtext/xml+votable180.050000true11.39458357.9597220.0055555555555555566/1399 1562 2395 2883 2887 3020 3353 3637 3819 5996 6146 6292 11605 12222 12812 12852 12960 12983 12992 13676 13995 14005 14214 14443 14592 14642 14796 14827 14853 15172 15384 15621 15750 21215 21315 21523 22660 23389 23688 23704 23949 28703 28711 28783 28805 28825 28865 28906 29057 29092 29094 29213 29267 29286 29317 29427 29472 29718 29852 29886 30308 30491 30527 31670 31775 32193 37110 37661 37731 37959 39801 39822 40279 41174 41464 41574 41617 41903 42099 42312 42632 42753 43360 47711 47859 48951https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AZh/82/437?format=asciidefaultJ/AZh/82/437/objectsObject coordinatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPNPlanerary nebulae namemeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainSNameSimbad namemeta.idcharSimbadSimbad column added by the CDScharJ/AZh/82/437/table1Empirical relationships for the chemical composition of nebular gasrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRelationship sequential numbermeta.idintprimaryA/HRatio consideredphys.atmol.elementcharRelRelationship that determine A/Hphys.atmol.elementR(A/H)(A/H)[calc]/(A/H)[mod] ratio (1)stat.fit.omcfloatr_R(A/H)Referencesmeta.bibcharJ/AZh/82/437/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharJ/AZh/82/437/table2Ionization correction factors for type I (F) and type II (FF) inhomogeneity in the gas density distribution.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[F ] Type I (F) or II (FF) of inhomogeneitysrc.classcharSeqRelationship sequential numbermeta.idintAElement consideredphys.atmol.ionStagecharIntInterval in which x is included (1)phys.atmolcharA+iIon at ith ionization stagephys.atmol.ionStage;phys.atmol.ionizationxIon abundance ratio for elements in adjacent ionization stage x=A^+k+1^/A^+k^ (1)phys.ionizParam.radC0C0 polynomial coefficient (1)stat.fit.paramdoubleC1C1 polynomial coefficient (1)stat.fit.paramdoubleC2C2 polynomial coefficient (1)stat.fit.paramdoubleC3? C3 polynomial coefficient (1)stat.fit.paramdoublenullablerCorrelation coefficient for the relationshipstat.fit.paramfloatR(A/H)(A/H)[calc]/(A/H)[mod] ratiostat.fit.omcfloatJ/AZh/82/437/table3*Helium abundances in type II Galactic PN based on two, three and four HeI linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPNPlanetary nebula namemeta.id;meta.maincharn_PN[*] * denotes PN without the HeII 4686{AA} linemeta.notechar(He/H)2lHelium abundances based on two HeI lines (4471{AA}, 5976{AA})phys.abund.Yfloate_(He/H)2lError on He/Htwostat.errordouble(He/H)3l? Helium abundances based on three HeI lines (4471{AA}, 5976{AA}, 6678{AA})phys.abund.Yfloatnullablee_(He/H)3l? Error on He/Hthreestat.errorfloatnullable(He/H)4l? Helium abundances based on four HeI lines (4471{AA},5976{AA},6678{AA},7065{AA})phys.abund.Yfloatnullablee_(He/H)4l? Error on He/Hfourstat.errordoublenullable<He/H>Averaged by standard method helium abundancephys.abund.Yfloate_<He/H>? Error on He/Hstat.error;phys.abund.YfloatnullableJ/AZh/82/437/table4Chemical composition of type II Galactic PN for the two types of inhomogeneityrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPNPlanetary nebula namemeta.id;meta.maincharO/H(I)? Oxygen abundance of PN of type Iphys.abunddoublenullableO/H(II)? Oxygen abundance of PN of type Iphys.abunddoublenullableN/H(I)? Nitrogen abundance of PN of type Iphys.abunddoublenullableN/H(II)? Nitrogen abundance of PN of type Iphys.abunddoublenullableNe/H(I)? Neon abundance of PN of type Iphys.abunddoublenullableNe/H(II)? Neon abundance of PN of type Iphys.abunddoublenullableS/H(I)? Sulphur abundance of PN of type Iphys.abunddoublenullableS/H(II)? Sulphur abundance of PN of type Iphys.abunddoublenullableAr/H(I)? Argon abundance of PN of type Iphys.abunddoublenullableAr/H(II)? Argon abundance of PN of type Iphys.abunddoublenullableJ/AZh/82/437/table5*Yp and dY/dZ for the two types of inhomogeneity (I and II) and three sets of HeI lines.NotesNotesmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRelationship sequential numbermeta.idintYpPregalactic He contentphys.abund.Yfloate_Yprms uncertainty on Ypstat.errordoubledY/dZHe enrichmentarith.grad;phys.abundfloate_dY/dZrms uncertainty on dY/DZstat.errorfloatNoNumber of objects used for the calculationmeta.numberintType[I II] Type of PNsrc.classchar