J/A+A/580/A17ivo://CDS.VizieR/J/A+A/580/A17doi:10.26093/cds/vizier.35800017CDSGenovali K.Lemasle B.da Silva R.Bono G.Fabrizio M.Bergemann M.,Buonanno R.Ferraro I.Francois P.Iannicola G.Inno L.Laney C.D.,Kudritzki R.-P.Matsunaga N.Nonino M.Primas F.Romaniello M.,Urbaneja M.A.Thevenin F.2017-12-07T07:27:01Z2015-07-22T08:38:49ZCDS support team

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

cds-question@unistra.frvariable-starsmilky-way-galaxychemical-abundancesspectroscopyWe present new homogeneous measurements of Na, Al, and three alpha-elements (Mg, Si, Ca) for 75 Galactic Cepheids, complemented with Cepheid abundances available in the literature, for a total of 439 stars. The abundances are based on high spectral resolution (R~38000) and high signal-to-noise ratio (S/N~50-300) spectra collected with UVES at ESO VLT. Special attention was given to providing a homogeneous abundance scale for these five elements plus iron. In addition, accurate Galactocentric distances (RG) based on near-infrared photometry are also available for all the Cepheids in the sample. We found that these five elements display well-defined linear radial gradients and modest standard deviations over the entire range of RG. The [element/Fe] abundance ratios are constant across the entire thin disk and over the entire period range; only the Ca radial distribution shows marginal evidence of slopes. These results indicate that the chemical enrichment history of iron and of the quoted elements has been quite similar across the four quadrants of the Galactic thin disk, and very homogenous within the range in age covered by the Cepheids (~10-300Myr). Finally, we also find that Cepheid abundances agree with similar abundances for thin and thick disk dwarf stars, and they follow the typical Mg-Al and Na-O correlations.2015A&A...580A..17Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/580/A17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/142/51 : Galactic Cepheids abundance variations (Luck+, 2011)J/AJ/142/136 : Spectroscopy of Cepheids. l=30-250{deg} (Luck+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/580/A17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/580/A17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/580/A17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/580/A17https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/580/A17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/580/A17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/580/A17/table2 (Mean abundances of Fe, Na, Al, Mg, Si, and Ca for the 75 Cepheids)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/580/A17/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/580/A17/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/580/A17/table2?GETtext/xml+votable180.050000true251.3296361-51.34260940.005555555555555556Cone search capability for table J/A+A/580/A17/table5 (Na, Al, Mg, Si, and Ca abundances for the whole sample of 439 Galactic Cepheids (the current 75 plus 364 from the literature))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/580/A17/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/580/A17/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/580/A17/table5?GETtext/xml+votable180.050000true143.4619119-36.61576280.0055555555555555565/9482 6/1239 1331 1340 1348 1388 1402 1411 1421 1426 1429 1431-1432 1441 1445 1467 1625 1631 1765 1824 1829 1836 1858 1920 1935 1985 2805 3000 3005 3008 3022 3033 3045 3047 3050 3052 3054 3059-3060 3063 3157 3182 3239 3252 3255 3261 3263 3284-3285 3304 3306 3309 3322 3328 3336-3337 3342 3361-3362 3365 3459 3589 3599-3601 3616 3627 3629 3631-3632 3641 3645 3656 3663 3682 3712-3714 3722 3728 3731 3849 12436 12846 12934 12963 12968 12970-12971 13166 13201 13288 13309-13310 13931 13933 13961 13990 14009 14047 14059 14075 14199 14205 14212 14229 14238-14239 14246 14251 14260 14262 14267 14271 14282-14283 14291-14292 14295 14301 14303 14314 14317 14320-14321 14323-14324 14328-14329 14404 14407 14409 14411 14424 14427 14430 14436 14445 14449 14453 14455 14457 14469 14533 14601-14602 14607 14625 14629-14630 14634 14637 14640 14653 14690 14698 14709 14718 14736 14770 15360 15378 15388 15392-15393 15396 15425 15429 15461 15585 15618 15632-15633 15639 15660 15698 20827 20833 21514 21542 21632 21648 21671 21679 21683 21686 22020 22044 22064 22068-22069 22071 22074 22106 22115-22116 22122 22124 22149 22169 22207 22210 22214 22219 22221 22223 22227 22255 22267 22438 23619 23622 23635 23660 23662 23669-23670 23762 23778 23816 23841 23846 23852 23922 23936 24002 24146 24153 24226 24326 24340 24372 24411 24424 24450 24453 24478-24479 24527 24551 28717 28779 28808 28819 28875 28893 28916 28991 29032 29081 29089 29095 29104 29110 29126 29166 29216 29468 29523 29533 29665 29772 29852 29875 29897 29999 30128 30211 30219 30222-30223 30235 30245 30258 30265 30270 30307 30311 30321-30322 30333 30438 30504 30580 30596 30609 30641 30646 32012 32064 32074 33804 37203 37223 37235 37268 37273 37330 37332 37334 37336 37340 37357 37364 37674 37713 37721 37723 37729 37741 37745-37746 37757 37828-37829 37856 37867 37870 37888 37903-37904 37917 37923 37926-37927 37938 37963 38020 38022-38023 38026 38029 38049 38627 39125 39216-39217 39231-39232 39244 39348 39374 39410 39766 39771 39790 39794 39796 39883 39886 39889 39892 39908 39920 39926 39933 39935 40491 40494 40580 40608 41375 41383 41385 41461 41556 41599 41605 41608 41631 41667 41673-41674 41681 41697-41698 41721-41722 41737 41761-41762 41768 41810 41813 41833 41842 41862 42153 42155-42156 42185 42297 42352 42378 42445 42500 42820 43013 43022 43028 43041 43047 43056-43057 43060https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/580/A17?format=asciiOpticaldefaultJ/A+A/580/A17/table2Mean abundances of Fe, Na, Al, Mg, Si, and Ca for the 75 CepheidsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCepheid namemeta.numbercharlogP[0.36/1.54] Logarithmic pulsation periodlog(d)time.periodfloatRgc[4657/14344] Galactocentric distancepcpos.distance;pos.galactocentricinte_Rgc[358/473] Error in the Galactocentric distancepcstat.errorint[Fe/H][-0.31/0.55] Metallicity [Fe/H] based on FeI and FeIIlog(Sun)phys.abund.Zfloate_[Fe/H][0.03/0.2]Standard deviation on [Fe/H]log(Sun)stat.error;phys.abund.Fefloat[Na/H][-0.3/1]? Sodium abundance [Na/H]log(Sun)phys.abundfloatnullablee_[Na/H][0/0.4]? Dispersion around the mean on [Na/H]log(Sun)stat.error;phys.abundfloatnullable[Al/H][-0.4/1]? Aluminum abundance [Al/H]log(Sun)phys.abundfloatnullablee_[Al/H][0/0.4]? Dispersion around the mean on [Al/H]log(Sun)stat.error;phys.abundfloatnullable[Mg/H][-0.4/0.6]? Magnesium abundance [Mg/H]log(Sun)phys.abundfloatnullablee_[Mg/H][0/0.6]? Dispersion around the mean on [Mg/H]log(Sun)stat.error;phys.abundfloatnullable[Si/H][-0.4/0.7]? Silicon abundance [Si/H]log(Sun)phys.abundfloatnullablee_[Si/H][0/0.4]? Dispersion around the mean on [Si/H]log(Sun)stat.error;phys.abundfloatnullable[Ca/H][-0.7/0.5]? Calcium abundance [Ca/H]log(Sun)phys.abundfloatnullablee_[Ca/H][0/0.4]? Dispersion around the mean on [Ca/H]log(Sun)stat.error;phys.abundfloatnullableNs[1/6]? Number of spectra available for each starmeta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_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.mainJ/A+A/580/A17/table1Fe, Na, Al, Mg, Si, and Ca abundances for the 75 Cepheids based on individual spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCepheid namemeta.numbercharMJDObservation date (Modified Julian Day)dtime.epochdouble[Fe/H][-0.31/0.55] Metallicity [Fe/H] based on FeI and FeIIlog(Sun)phys.abund.Zfloate_[Fe/H][0.01/0.3] Standard deviation on [Fe/H]log(Sun)stat.error;phys.abund.FefloatNFe1[8/118] Number of FeI lines usedmeta.numberintNFe2[0/14] Number of FeII lines usedmeta.numberint[Na/H][-0.3/1]? Sodium abundance [Na/H]log(Sun)phys.abundfloatnullablee_[Na/H][0/0.4]? Dispersion around the mean on [Na/H]log(Sun)stat.error;phys.abundfloatnullableNNa[1/2]? Number of NaI lines usedmeta.numberintnullable[Al/H][-0.4/1]? Aluminum abundance [Al/H]log(Sun)phys.abundfloatnullablee_[Al/H][0/0.4]? Dispersion around the mean on [Al/H]log(Sun)stat.error;phys.abundfloatnullableNAl[1/6]? Number of AlI lines usedmeta.numberintnullable[Mg/H][-0.4/0.6]? Magnesium abundance [Mg/H]log(Sun)phys.abundfloatnullablee_[Mg/H][0/0.6]? Dispersion around the mean on [Mg/H]log(Sun)stat.error;phys.abundfloatnullableNMg[1]? Number of MgI lines usedmeta.numberintnullable[Si/H][-0.4/0.7]? Silicon abundance [Si/H]log(Sun)phys.abundfloatnullablee_[Si/H][0/0.4]? Dispersion around the mean on [Si/H]log(Sun)stat.error;phys.abundfloatnullableNSi[1/14]? Number of SiI lines usedmeta.numberintnullable[Ca/H][-0.7/0.5]? Calcium abundance [Ca/H]log(Sun)phys.abundfloatnullablee_[Ca/H][0/0.4]? Dispersion around the mean on [Ca/H]log(Sun)stat.error;phys.abundfloatnullableNCa[1/7]? Number of CaI lines usedmeta.numberintnullableJ/A+A/580/A17/table5Na, Al, Mg, Si, and Ca abundances for the whole sample of 439 Galactic Cepheids (the current 75 plus 364 from the literature)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Name[*] * for observed Cepheidsmeta.notecharNameCepheid namemeta.id;meta.maincharprimary[Na/H]o? Na/H abundance from literature (original)log(Sun)phys.abundfloatnullable[Na/H]? Na/H abundance from literature (rescaled)log(Sun)phys.abundfloatnullabler_[Na/H]? Reference for the Na literature abundances (1)meta.ref;pos.framechar[Al/H]o? Al/H abundance from literature (original)log(Sun)phys.abundfloatnullable[Al/H]? Al/H abundance from literature (rescaled)log(Sun)phys.abundfloatnullabler_[Al/H]? Reference for the Al literature abundances (1)meta.ref;pos.framechar[Mg/H]o? Mg/H abundance from literature (original)log(Sun)phys.abundfloatnullable[Mg/H]? Mg/H abundance from literature (rescaled)log(Sun)phys.abundfloatnullabler_[Mg/H]? Reference for the Mg literature abundances (1)meta.ref;pos.framechar[Si/H]oSi/H abundance from literature (original)log(Sun)phys.abundfloat[Si/H]Si/H abundance from literature (rescaled)log(Sun)phys.abundfloatr_[Si/H]Reference for the Si literature abundances (1)meta.ref;pos.framechar[Ca/H]oCa/H abundance from literature (original)log(Sun)phys.abundfloat[Ca/H]Ca/H abundance from literature (rescaled)log(Sun)phys.abundfloatr_[Ca/H]Reference for the Ca literature abundances (1)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.ref.urlchar_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