J/MNRAS/370/163ivo://CDS.VizieR/J/MNRAS/370/163doi:10.26093/cds/vizier.73700163CDSBond J.C.Tinney C.G.Butler R.P.Jones H.R.A.Marcy G.W.,Penny A.J.Carter B.D.2024-07-03T20:13:43Z2007-01-11T14:26:01ZCDS support team

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

cds-question@unistra.frg-starssolar-system-planetschemically-peculiar-starsWe present the results of a uniform, high-precision spectroscopic metallicity study of 136 G-type stars from the Anglo-Australian Planet Search, 20 of which are known to harbour extrasolar planets (as at 2005 July). Abundances in Fe, C, Na, Al, Si, Ca, Ti and Ni are presented, along with Stroemgen photometric metallicities. This study is one of several recent studies examining the metallicities of a sample of planet-host and non-planet-host stars that were obtained from a single sample, and analysed in an identical manner, providing an unbiased estimate of the metallicity trends for planet-bearing stars. We find that non-parametric tests of the distribution of metallicities for planet-host and non-planet-host stars are significantly different at a level of 99.4 per cent confidence. We confirm the previously observed trend for planet-host stars to have higher mean metallicities than non-planet-host stars, with a mean metallicity for planet-host stars of [Fe/H]=0.06+/-0.03dex compared with [Fe/H]=0.09+/-0.01dex for non-host-stars in our sample. This enrichment is also seen in the other elements studied. Based on our findings, we suggest that this observed enhancement is more likely a relic of the original gas cloud from which the star and its planets formed, rather than being due to 'pollution' of the stellar photosphere.2006MNRAS.370..163Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/370/163CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/415/1153 : [Fe/H] for 98 extra-solar planet-host stars (Santos+, 2004)J/A+A/438/251 : Abundances in stars with giant planets (Beirao+, 2005)J/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)J/A+A/449/723 : Abundances in atmospheres of stars with planets (Gilli+ 2006)J/A+A/458/997 : Abundances for 6 transiting planet host stars (Santos+, 2006)J/MNRAS/370/163 : Abundance distribution of stars with planets (Bond+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/370/163https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/370/163http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/370/163https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/370/163https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/370/163http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/370/163GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/370/163/table23 (Atmospheric parameters and stellar abundances for all target stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/370/163/table23?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/370/163/table23?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/370/163/table23?GETtext/xml+votable180.050000true5.0177506-64.87479060.0055555555555555566/16931 17425 17469 20512 21066 21080 24790 24795 28719 28909 32848 32979 33042 33224 33236 33258 33456 33510 33552 33630 33717 33756 33788 33879 33923 33991 34192 34446 34817 34864 34951 35064 35230 35237 35362 35485 35954 35968 36035 36057 37408 37461 37616 37704 37807 37954 38238 38279 38311 38330 38434 38545 38562 38614 38788 38918 38934 38955 39034 39118 39257 39280 39282-39283 39364 39461 39500 39563 39576 40371 40514 41143 41204 41752 41763 41935 41941 41990 42063 42228 42248 42458 42656 42700 42887 42903 42918 43093 43228 43258 43544 43639 43699 43989 44243 45107 45143 45175 45182 45258 45265 45299 45364 45457-45458 45502 45535 45656 45668-45669 45865 46076 46112 46193 46297 46306 46320 46355 46593 46640 46681 46734 46944 47234 47377 47536 47629 47740 48065 48291 48362 48664https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/370/163?format=asciidefaultJ/MNRAS/370/163/table23Atmospheric parameters and stellar abundances for all target starsHDHD numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupnh: Non-host stars; ph: Planetary host starsmeta.idcharm_HD[A] Multiplicity index on HDmeta.code.multipcharTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggrms uncertainty on logglog(cm.s**-2)stat.errorfloatVtMicroturbulence velocitykm/sphys.veloc.microTurbfloat[Fe/H]Spectroscopic metallicitylog(Sun)phys.abund.Fefloate_[Fe/H]rms uncertainty on [Fe/H]splog(Sun)stat.error;phys.abund.Fefloat[Fe/H]ph? Photometric metallicitylog(Sun)phys.abund.FefloatnullableSimbadSimbad column added by the CDSchar[C/H]? Elemental abundance [C/H]log(Sun)phys.abundfloatnullablee_[C/H]? rms uncertainty on [C/H]log(Sun)stat.error;phys.abundfloatnullable[Na/H]Elemental abundance [Na/H]log(Sun)phys.abundfloate_[Na/H]rms uncertainty on [Na/H]log(Sun)stat.error;phys.abundfloat[Al/H]? Elemental abundance [Al/H]log(Sun)phys.abundfloatnullablee_[Al/H]? rms uncertainty on [Al/H]log(Sun)stat.error;phys.abundfloatnullable[Si/H]Elemental abundance [Si/H]log(Sun)phys.abundfloate_[Si/H]rms uncertainty on [Si/H]log(Sun)stat.error;phys.abundfloat[Ca/H]Elemental abundance [Ca/H]log(Sun)phys.abundfloate_[Ca/H]rms uncertainty on [Ca/H]log(Sun)stat.error;phys.abundfloat[TiI/H]Elemental abundance [ TiI/H]log(Sun)phys.abundfloate_[TiI/H]rms uncertainty on [TiI/H]log(Sun)stat.error;phys.abundfloat[TiII/H]? Elemental abundance [TiII/H]log(Sun)phys.abundfloatnullablee_[TiII/H]? rms uncertainty on [TiII/H]log(Sun)stat.error;phys.abundfloatnullable[Ni/H]? Elemental abundance [Ni/H]log(Sun)phys.abundfloatnullablee_[Ni/H]? rms uncertainty on [Ni/H]log(Sun)stat.error;phys.abundfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main