J/ApJS/197/29ivo://CDS.VizieR/J/ApJS/197/29doi:10.26093/cds/vizier.21970029CDSFor B.-Q.Sneden C.Preston G.W.2017-06-29T08:56:04Z2012-02-07T15:19:08ZCDS support team

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

cds-question@unistra.frchemical-abundancesvariable-starshorizontal-branch-starsspectroscopyWe present a detailed abundance study of 11 RR Lyrae ab-type variables: AS Vir, BS Aps, CD Vel, DT Hya, RV Oct, TY Gru, UV Oct, V1645 Sgr, WY Ant, XZ Aps, and Z Mic. High-resolution and high signal-to-noise ratio echelle spectra of these variables were obtained with the 2.5m du Pont telescope at the Las Campanas Observatory. We obtained more than 2300 spectra, roughly 200 spectra per star, distributed more or less uniformly throughout the pulsational cycles. A new method has been developed to obtain the initial effective temperatures of our sample stars at a specific pulsational phase. We find that the abundance ratios are generally consistent with those of similar metallicity field stars in different evolutionary states and throughout the pulsational cycles for RR Lyrae stars. TY Gru remains the only n-capture enriched star among the RRab in our sample.2011ApJS..197...29Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/197/29CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/176 : RR Lyrae Metallicities (Layden 1994)J/ApJS/194/38 : Radial velocities of 11 field RR Lyrae (For+, 2011)J/AcA/59/137 : ASAS Galactic fundamental mode RR Lyrae stars (Szczygiel+,J/AJ/136/1645 : Spectroscopy of bright QUEST RR Lyrae stars (Vivas+, 2008)J/AJ/132/1714 : Photometric and Spectroscopic study of TY Gru (Preston+, 2006)J/A+A/312/111 : [Fe/H] from RR Lyrae light curves (Jurcsik+, 1996)J/AJ/110/2319 : Abundances in RR Lyr variables (Clementini+ 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/197/29https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/197/29http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/197/29https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/197/29https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/197/29http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/197/29GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/197/29/table1 (Basic information for the program stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/197/29/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/197/29/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/197/29/table1?GETtext/xml+votable180.050000true146.1593333-45.8770.0055555555555555566/24724 25768 38456 38809 40988 40998 41022 41260 46686 47467 48228https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/197/29?format=asciiOpticaldefaultJ/ApJS/197/29/table1Basic information for the program starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainRVDisplay the radial velocities from For et al. 2011 (Cat. J/ApJS/194/38)meta.ref.urlcharVCVelocity curve from For et al. 2011 (Cat. J/ApJS/194/38)meta.ref.urlcharAbSimbad column added by the CDSmeta.ref.urlcharSimbadSimbad column added by the CDScharDataData used (HJD 2450000+) (1)instr.setupcharT0Epoch (HJD 2450000+)dtime.epochdoublee_T0T0 uncertainty (HJD 2450000+)dstat.errorfloatPer? Pulsation perioddtime.perioddoublenullablee_Per? Period uncertaintydstat.errordoublenullableN? Total number of observed spectrameta.numberintnullableJ/ApJS/197/29/abundAbundance ratios throughout the Pulsational CyclesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharCycle[1,3]? Cycle numbermeta.idintnullablePhasePhasetime.phasefloat[NaI/Fe]? Log Na I/Fe abundance ratiolog(Sun)phys.abundfloatnullablef_[NaI/Fe][a] Indicates a NLTE correction in [NaI/Fe]meta.codechare_[NaI/Fe]? The 1{sigma} uncertainty in [NaI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[NaI/Fe]? Number of lines used in [NaI/Fe]meta.numberintnullable[MgI/Fe]? Log Mg I/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[MgI/Fe]? The 1{sigma} uncertainty in [MgI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[MgI/Fe]? Number of lines used in [MgI/Fe]meta.numberintnullable[AlI/Fe]? Log Al I/Fe abundance ratiolog(Sun)phys.abundfloatnullablef_[AlI/Fe][a] Indicates a NLTE correction in [AlI/Fe]meta.codechare_[AlI/Fe]? The 1{sigma} uncertainty in [AlI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[AlI/Fe]? Number of lines used in [AlI/Fe]meta.numberintnullable[SiI/Fe]? Log Si I/Fe abundance ratiolog(Sun)phys.abundfloatnullablef_[SiI/Fe][a] Indicates a NLTE correction in [SiI/Fe]meta.codechare_[SiI/Fe]? The 1{sigma} uncertainty in [SiI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[SiI/Fe]? Number of lines used in [SiI/Fe]meta.numberintnullable[SiII/Fe]? Log Si II/Fe abundance ratiolog(Sun)phys.abundfloatnullablef_[SiII/Fe][a] Indicates a NLTE correction in [SiII/Fe]meta.codechare_[SiII/Fe]? The 1{sigma} uncertainty in [SiII/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[SiII/Fe]? Number of lines used in [SiII/Fe]meta.numberintnullable[CaI/Fe]? Log Ca I/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[CaI/Fe]? The 1{sigma} uncertainty in [CaI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[CaI/Fe]? Number of lines used in [CaI/Fe]meta.numberintnullable[ScII/Fe]? Log Sc II/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[ScII/Fe]? The 1{sigma} uncertainty in [ScII/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[ScII/Fe]? Number of lines used in [ScII/Fe]meta.numberintnullable[TiI/Fe]? Log Ti I/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[TiI/Fe]? The 1{sigma} uncertainty in [TiI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[TiI/Fe]? Number of lines used in [TiI/Fe]meta.numberintnullable[TiII/Fe]? Log Ti II/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[TiII/Fe]? The 1{sigma} uncertainty in [TiII/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[TiII/Fe]? Number of lines used in [TiII/Fe]meta.numberintnullable[VII/Fe]? Log V II/Fe abundance ratiolog(Sun)phys.abundfloatnullableo_[VII/Fe]? Number of lines used in [VII/Fe]meta.numberintnullable[CrI/Fe]? Log Cr I/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[CrI/Fe]? The 1{sigma} uncertainty in [CrI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[CrI/Fe]? Number of lines used in [CrI/Fe]meta.numberintnullable[CrII/Fe]? Log Cr II/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[CrII/Fe]? The 1{sigma} uncertainty in [CrII/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[CrII/Fe]? Number of lines used in [CrII/Fe]meta.numberintnullable[CoI/Fe]? Log Na I/Fe abundance ratiolog(Sun)phys.abundfloatnullableo_[CoI/Fe]? Number of lines used in [CoI/Fe]meta.numberintnullable[NiI/Fe]? Log Ni I/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[NiI/Fe]? The 1{sigma} uncertainty in [NiI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[NiI/Fe]? Number of lines used in [NiI/Fe]meta.numberintnullable[ZnI/Fe]? Log Zn I/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[ZnI/Fe]? The 1{sigma} uncertainty in [ZnI/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[ZnI/Fe]? Number of lines used in [ZnI/Fe]meta.numberintnullable[YII/Fe]? Log Y II/Fe abundance ratiolog(Sun)phys.abundfloatnullablee_[YII/Fe]? The 1{sigma} uncertainty in [YII/Fe]log(Sun)stat.error;phys.abundfloatnullableo_[YII/Fe]? Number of lines used in [YII/Fe]meta.numberintnullable