J/A+A/493/913ivo://CDS.VizieR/J/A+A/493/913doi:10.26093/cds/vizier.34930913CDSFeltzing S.Primas F.Johnson R.A.2018-01-30T07:18:08Z2009-04-03T16:06:38ZCDS support team

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

cds-question@unistra.frglobular-star-clustershorizontal-branch-starschemical-abundancesMetal-rich globular clusters provide important tracers of the formation of our Galaxy. Moreover, and not less important, they are very important calibrators for the derivation of properties of extra-galactic metal-rich stellar populations. Nonetheless, only a few of the metal-rich globular clusters in the Milky Way have been studied using high-resolution stellar spectra to derive elemental abundances. Additionally, Rosenberg et al. identified a small group of metal-rich globular clusters that appeared to be about 2 billion years younger than the bulk of the Milky Way globular clusters. However, it is unclear if like is compared with like in this dataset as we do not know the enhancement of alpha-elements in the clusters and the amount of alpha-elements is well known to influence the derivation of ages for globular clusters. We present a study of elemental abundances for alpha and iron-peak elements for nine HB stars in the metal-rich globular cluster NGC 6352. The elemental abundances are based on high-resolution, high signal-to-noise spectra obtained with the UVES spectrograph on VLT. The elemental abundances have been derived using standard LTE calculations and stellar parameters have been derived from the spectra themselves by requiring ionizational as well as excitational equilibrium. We find that NGC 6352 has [Fe/H]=-0.55, is enhanced in the alpha-elements to about +0.2dex for Ca, Si, and Ti relative to Fe. For the iron-peak elements we find solar values. Based on the spectroscopically derived stellar parameters we find that an E(B-V)=0.24 and (m-M).2009A&A...493..913Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/493/913CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/110/652 : VI photometry in NGC 6352 (Fullton+ 1995)J/A+AS/129/237 : G and K dwarfs abundances (Feltzing+ 1998)J/A+A/410/527 : Abundances in the Galactic disk (Bensby+, 2003)J/A+A/415/155 : Oxygen abundances in the Galactic disk (Bensby+, 2004)J/A+A/433/185 : Detailed abundance analysis of 102 F & G dwarfs (Bensby+ 2005)J/A+A/467/665 : Manganese abundances in the Galactic disk (Feltzing+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/493/913https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/493/913http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/493/913https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/493/913https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/493/913http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/493/913GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/493/913/table1 (Data for our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/493/913/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/493/913/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/493/913/table1?GETtext/xml+votable180.050000true261.37812111-48.4258650.0055555555555555566/422788.650015785639275e-20 9.710690472292815e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/493/913?format=asciiOpticaldefaultJ/A+A/493/913/table1Data for our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[01/09] Star number, as in Fig. 1meta.recordintprimaryALC? Alcaino (1971A&A....11....7A) number, Cl* NGC 6352 ALC NNN in Simbadmeta.idintnullableHH? Hartwick & Hesser (1972ApJ...175...77H) number, NGC 6352 NNN in Simbadmeta.idintnullableRAJ2000Right ascension in decimal degrees (J2000) (1)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000) (1)degpos.eq.dec;meta.mainVmagHST V555 magnitudemagphot.mag;em.opt.VfloatV-IHST V555-I814 colour indexmagphot.color;em.opt.V;em.opt.IfloatKmag2MASS K magnitudemagphot.mag;em.IR.Kfloat2MDetails from 2MASS catalog (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharJ/A+A/493/913/abunElemental abundances for the nine stars in NGC 6352recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[01/09]? Star number, as in Fi.g 1meta.recordintnullablen_Seq[Mean Med] Mean or Median abundance for all starsmeta.notecharElElement and ionizational stage (I for neutral, II for singly ionized)phys.atmol.elementcharAbundAbundance of the elementlog(Sun)phys.atmol.elementfloatsigma? The associate line-to-line scatter (1)log(Sun)stat.errorfloatnullableNLine? Number of lines used in the determination of the abundancemeta.numberintnullableJ/A+A/493/913/ewMeasured equivalent widths for 13 elementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[01/09] Star number, as in Fig. 1meta.recordintElElement and ionizational stage (I for neutral, II for singly ionized)phys.atmol.elementcharLambdaWavelength for the line, in Angstrom0.1nmem.wlfloatChiExcitation energy of the lower leveleVphys.atmol.excitation;phys.atmol.levelfloatlog(gf)Oscillator strengths used in the abundance analysisphys.atmol.oscStrengthfloatEWEquivalenth widths0.1pmspect.line.eqWidthfloat