J/ApJ/775/L27ivo://CDS.VizieR/J/ApJ/775/L27doi:10.26093/cds/vizier.17759027CDSJohnson C.I.McWilliam A.Rich R.M.2015-05-06T15:20:56Z2015-04-20T15:18:09ZCDS support team

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

cds-question@unistra.frchemical-abundancesgiant-starschemically-peculiar-starsWe present chemical abundances for 27 elements ranging from oxygen to erbium in the metal-poor ([Fe/H]=-1.67) bulge red giant branch star 2MASS 18174532-3353235. The results are based on equivalent width and spectrum synthesis analyses of a high-resolution (R~30000) spectrum obtained with the Magellan-MIKE spectrograph. While the light (Z<~30) element abundance patterns match those of similar metallicity bulge and halo stars, the strongly enhanced heavy element abundances are more similar to "r-II" halo stars (e.g., CS 22892-052) typically found at [Fe/H]<~-2.5. We find that the heaviest elements (Z>=56) closely follow the scaled-solar r-process abundance pattern. We do not find evidence supporting significant s-process contributions; however, the intermediate mass elements (e.g., Y and Zr) appear to have been produced through a different process than the heaviest elements. The light and heavy element abundance patterns of 2MASS 18174532-3353235 are in good agreement with the more metal-poor r-process enhanced stars CS 22892-052 and BD +17{deg}3248. 2MASS 18174532-3353235 also shares many chemical characteristics with the similar metallicity but comparatively {alpha}-poor Ursa Minor dwarf galaxy giant COS 82. Interestingly, the Mo and Ru abundances of 2MASS 18174532-3353235 are also strongly enhanced and follow a similar trend recently found to be common in moderately metal-poor main-sequence turn-off halo stars.2013ApJ...775L..27Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/775/L27CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/320 : SPM 4.0 Catalog (Girard+, 2011)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/ApJ/765/157 : Red giants abundances in the Galactic bulge (Johnson+, 2013)J/ApJ/749/175 : Abundances for stars in Plaut's window (Johnson+, 2012)J/A+A/530/A54 : Abundances of 650 bulge red giants (Gonzalez+, 2011)J/ApJ/732/108 : Abundances of 92 giants in Plaut's window (Johnson+, 2011)J/ApJ/724/975 : Metal-poor stars heavy elements abundances (Roederer+, 2010)J/ApJ/722/1373 : {omega} Centauri giants abundances (Johnson+, 2010)J/ApJS/182/80 : Rare earth abundances (Sneden+, 2009)J/ApJS/182/51 : Transition proba. of rare earth elements (Lawler+, 2009)J/ApJ/667/1267 : CrI transition probabilities (Sobeck+, 2007)J/AJ/134/1432 : Proper motions in Plaut's window (Vieira+, 2007)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/A+A/439/129 : HERES II. Spectroscopic analysis (Barklem+, 2005)J/A+A/433/185 : Detailed abundance analysis of F & G dwarfs (Bensby+, 2005)J/ApJ/617/1091 : La and Eu abundances in 85 stars (Simmerer+, 2004)J/MNRAS/340/304 : [X/Fe] of Galactic disc F and G dwarfs (Reddy+, 2003)J/AJ/120/1841 : Halo & Disk Stars Abundances & Kinematics (Fulbright 2000)J/ApJ/530/783 : The r-process enriched giant HD 115444 (Westin+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/775/L27https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/775/L27http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/775/L27https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/775/L27https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/775/L27http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/775/L27GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/775/L27/table1Line list and abundancesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpSpecies identifier (1)phys.atmol.ionStagecharZ[8/68] Atomic numbermeta.id;meta.mainintlambda[4966/7836.2] Wavelength ({AA})0.1nmem.wlfloatExPot[0/5.9] Excitation potentialeVphys.atmol.excitationfloatlog(gf)[-9.8/0.7]? Log of the oscillator strengthphys.atmol.oscStrengthfloatnullablen_Meth[H] Hyperfine structure used (2)meta.notecharMethMethod used (3)meta.notecharAuthAuthor's name(s) of the referencemeta.bib.authorcharBibCodeBibcode of the referencemeta.bib.bibcodecharf_BibCode[c] Flag on the reference (4)meta.codechar