J/ApJ/750/76ivo://CDS.VizieR/J/ApJ/750/76doi:10.26093/cds/vizier.17500076CDSRoederer I.U.Lawler J.E.2014-02-10T14:49:55Z2014-01-20T13:16:03ZCDS support team

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

cds-question@unistra.fratomic-physicsline-intensitieschemically-peculiar-starshalo-starsWe report the first detection of elements at all three r-process peaks in the metal-poor halo star HD 160617. These elements include arsenic and selenium, which have not been detected previously in halo stars, and the elements tellurium, osmium, iridium, and platinum, which have been detected previously. Absorption lines of these elements are found in archive observations made with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. We present up-to-date absolute atomic transition probabilities and complete line component patterns for these elements. Additional archival spectra of this star from several ground-based instruments allow us to derive abundances or upper limits of 45 elements in HD 160617, including 27 elements produced by neutron-capture reactions. The average abundances of the elements at the three r-process peaks are similar to the predicted solar system r-process residuals when scaled to the abundances in the rare earth element domain. This result for arsenic and selenium may be surprising in light of predictions that the production of the lightest r-process elements generally should be decoupled from the heavier r-process elements.2012ApJ...750...76Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/750/76CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/442/961 : Lithium content of the Galactic Halo stars (Charbonnel+, 2005)J/A+A/440/321 : Chemical abundances in 43 metal-poor stars (Jonsell+, 2005)J/AZh/82/453 : Catalogue of spectroscopic abundances in stars (Borkova+, 2005)J/PASJ/57/65 : CNO abundances of solar-type stars (Takeda+, 2005)J/A+A/415/993 : FeII, ZNI and SI abundances on halo stars (Nissen+, 2004)J/A+A/390/235 : OI & FeII equivalent widths in metal-poor stars (Nissen+ 2002)J/A+A/354/169 : Metal-poor field stars abundances (Gratton+, 2000)J/AJ/117/981 : Estimation of stellar metal abundance. II. (Beers+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/750/76https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/750/76http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/750/76https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/750/76https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/750/76http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/750/76GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJ/750/76/table4Hyperfine structure line component patterns for ^75^As I linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintsigCenter-of-Gravity wavenumber {sigma} (1)cm**-1em.wl;phys.atmol.transitiondoublelam0[1890/1991] Center-of-Gravity vacuum {lambda} wavelength ({AA}) (1)0.1nmem.wl;phys.atmol.transitiondoubleFuppComponent upper level F or total angular momentumphys.atmol.qnintFlowComponent lower level F or total angular momentumphys.atmol.qnintdsigComponent offset wavenumber {sigma} with respect to Center-of-gravity Wavenumber (1)cm**-1em.wl;arith.diffdoubledlamComponent offset Wavelength with respect to Center-of-gravity Wavelength ({AA})0.1nmem.wl;arith.diffdoubleStrComponent strength normalized to sum to onespect.line.widthdoubleJ/ApJ/750/76/table12Hyperfine structure and isotopic line component pattern of the 1942 Angstrom line of Hg IIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintsigCenter-of-Gravity wavenumber {sigma} (1)cm**-1em.wl;phys.atmol.transitiondoublelam0[1942/1943] Center-of-Gravity vacuum wavelength {lambda} ({AA}) (1)0.1nmem.wl;phys.atmol.transitiondoubleFuppComponent upper level F or total angular momentumphys.atmol.qnfloatFlowComponent lower level F or total angular momentumphys.atmol.qnfloatdsigComponent offset Wavenumber with respect to Center-of-gravity Wavenumber (1)cm**-1em.wl;arith.diffdoubledlamComponent offset Wavelength with respect to Center-of-gravity Wavelength ({AA})0.1nmem.wl;arith.diffdoubleStrComponent strength normalized to sum to onespect.line.widthdoubleIsoIsotopephys.atmol.weightintJ/ApJ/750/76/table13Equivalent width measurementsIonSpecies identificationphys.atmol.ionStagecharf_lam[a] line rejected (1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlam[3321/6768] Wavelength {lambda} ({AA})0.1nmem.wlfloatExPot[0/5.1] Excitation potentialeVphys.atmol.excitationfloatlog(gf)[-5/0.7] Log of the oscillator strengthphys.atmol.oscStrengthfloatEW[1.7/147.6] Equivalent width (m{AA})0.1pmspect.line.eqWidthfloatInstInstrument used (HARPS, HIRES or UVES)instr.setupcharJ/ApJ/750/76/table8Hyperfine structure and isotopic line component patterns for Cd II linesIsoIsotopephys.atmol.weightintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintsigCenter-of-Gravity wavenumber {sigma} (1)cm**-1em.wl;phys.atmol.transitiondoublelam[2116/2266] Center-of-Gravity air wavelength {lambda} ({AA}) (1)0.1nmem.wldoubleFuppComponent upper level F or total angular momentumphys.atmol.qnfloatFlowComponent lower level F or total angular momentumphys.atmol.qnfloatdsigComponent offset Wavenumber with respect to Center-of-gravity Wavenumber (1)cm**-1em.wl;arith.diffdoubledlamComponent offset Wavelength with respect to Center-of-gravity Wavelength ({AA})0.1nmem.wl;arith.diffdoubleStrComponent strength normalized to sum to onespect.line.widthdoubleJ/ApJ/750/76/table10Hyperfine structure and isotopic line component patterns for Yb II linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintsigCenter-of-Gravity wavenumber {sigma} (1)cm**-1em.wl;phys.atmol.transitiondoublelam[2116/2266] Center-of-Gravity air wavelength {lambda} ({AA}) (1)0.1nmem.wldoubleFuppComponent upper level F or total angular momentumphys.atmol.qnfloatFlowComponent lower level F or total angular momentumphys.atmol.qnfloatdsigComponent offset Wavenumber with respect to Center-of-gravity Wavenumber (1)cm**-1em.wl;arith.diffdoubledlamComponent offset Wavelength with respect to Center-of-gravity Wavelength ({AA})0.1nmem.wl;arith.diffdoubleStrComponent strength normalized to sum to onespect.line.widthdoubleIsoIsotopephys.atmol.weightint