J/MNRAS/370/2091ivo://CDS.VizieR/J/MNRAS/370/2091doi:10.26093/cds/vizier.73702091CDSChen Y.Q.Zhao G.2024-07-03T20:13:47Z2007-01-14T16:17:55ZCDS support team

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

cds-question@unistra.frlate-type-starschemically-peculiar-starsAbundances of 18 elements are determined for the common proper-motion pair, HD 134439 and HD 134440, which shows high [Mn/Fe] and low [alpha/Fe] ratios as compared to normal halo stars. Moreover, puzzling abundances are indicated from elements whose origins are normally considered to be from the same nucleosynthesis history. Particularly, we have found that [Mg/Fe] and [Si/Fe] are lower than [Ca/Fe] and [Ti/Fe] by 0.1-0.3dex. When elemental abundances are interpreted in term of their condensation temperatures (T_C_), obvious trends of [X/Fe] versus TC for alpha elements and probably iron-peak elements as well are shown. The hypothesis that these stars have formed from a dusty environment in dwarf spheroidal (dSph) galaxy provides a solution to the puzzling abundance pattern.2006MNRAS.370.2091Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/370/2091CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/370/2091https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/370/2091http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/370/2091https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/370/2091https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/370/2091http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/370/2091GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/370/2091/tablea1The atomic data and equivalent widths for HD 134439 (1), HD 134440 (2) and HD 211998 (3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonElement and ionization levelphys.atmol.element;phys.atmol.level;phys.atmol.ionizationcharLambdaWavelength0.1nmem.wldoubleEPExcitation potentialeVphys.atmol.excitationfloatloggf? Oscillator strengthphys.atmol.oscStrengthfloatnullableEW1? Equivalent widths for HD1344390.1pmspect.line.eqWidthfloatnullableEW2? Equivalent widths for HD1344400.1pmspect.line.eqWidthfloatnullableEW3? Equivalent widths for HD2119980.1pmspect.line.eqWidthfloatnullable