J/AJ/132/1714ivo://CDS.VizieR/J/AJ/132/1714doi:10.26093/cds/vizier.51321714CDSPreston G.W.Thompson I.B.Sneden C.Stachowski G.Shectman S.A.2017-06-02T08:37:37Z2008-11-14T07:38:45ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryline-intensitiesradial-velocityWe have conducted a photometric and high-resolution spectroscopic analysis of the high-latitude (l=1{deg}, b=-55{deg}) metal-poor RR Lyrae star TY Gru (=CS 22881-071). We find this star to have large overabundances of carbon and neutron-capture elements. Mass transfer from an asymptotic giant branch binary companion prior to its RR Lyrae evolutionary state is the simplest explanation of this circumstance. Unfortunately, TY Gru is afflicted by the Blazhko effect, which greatly complicates accurate measurement of the motion of its center of mass. We have not yet detected the small orbital motion that would be produced by a distant degenerate companion of TY Gru.2006AJ....132.1714Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/132/1714CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/132/1714https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/132/1714http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/132/1714https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/132/1714https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/132/1714http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/132/1714GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/132/1714/table1PhotometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date of observationdtime.epochdoubleVmagThe TY Gru V band magnitudemagphot.mag;em.opt.VfloatJ/AJ/132/1714/table2Spectroscopic ObservationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTelThe Telescope/observer code (1)meta.codecharHJDHeliocentric Julian Date of observationdtime.epochdoublePhasePulsation phase (P=0.570065)time.phasefloatRVRadial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatJ/AJ/132/1714/table4Line DatarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength in Angstroms0.1nmem.wlfloatIonIon speciesphys.atmol.ionStagecharExPotExcitation potentialeVphys.atmol.excitationfloatlog(gf)Log of the oscillator strengthphys.atmol.oscStrengthfloatEW? Equivalent width in m{AA} (1)0.1pmspect.line.eqWidthintnullableu_EWUncertainty flag on EW (1)meta.code.error;spect.line.eqWidthcharf_EW[s] Synthesis flag on EW (1)meta.codecharlog(e)Log of the abundancephys.abundfloat