J/A+A/438/139ivo://CDS.VizieR/J/A+A/438/139doi:10.26093/cds/vizier.34380139CDSSoubiran C.Girard P.2018-01-05T08:56:51Z2005-08-12T06:29:33ZCDS support team

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

cds-question@unistra.frchemically-peculiar-starsWe have compiled a large catalogue of metallicities and abundance ratios from the literature in order to investigate abundance trends of several alpha and iron peak elements in the thin disk and the thick disk of the Galaxy. The catalogue includes 743 stars with abundances of Fe, O, Mg, Ca, Ti, Si, Na, Ni and Al in the metallicity range -1.30<[Fe/H]<+0.50. We have checked that systematic differences between abundances measured in the different studies were lower than random errors before combining them. Accurate distances and proper motions from Hipparcos, and radial velocities from several sources have been retrieved for 639 stars and their velocities (U,V,W) and galactic orbits have been computed. Ages of 322 stars have been estimated with the Bayesian method of isochrone fitting developed by Pont & Eyer (2004MNRAS.351..487P). Two samples kinematically representative of the thin and thick disks have been selected, taking into account the Hercules stream which is intermediate in kinematics, but with a probable dynamical origin. Our results show that the two disks are chemically well separated, they overlap greatly in metallicity and both show parallel decreasing trends of alpha elements with increasing metallicity, in the interval -0.80<[Fe/H]<-0.30. The Mg enhancement with respect to Fe of the thick disk is measured to be 0.14dex. An even larger enhancement is observed for Al. The thick disk is clearly older than the thin disk with a tentative evidence of an AMR over 2-3Gyr and a hiatus in star formation before the formation of the thin disk. We do not observe a vertical gradient in the metallicity of the thick disk. The Hercules stream have properties similar to that of the thin disk, with a wider range of metallicity. Metal-rich stars assigned to the thick disk and super metal rich stars assigned to the thin disk appear as outliers in all their properties.2005A&A...438..139Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/438/139CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/438/139https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/438/139http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/438/139https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/438/139https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/438/139http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/438/139GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/438/139/catalog (All parameters of the catalogue of metallicities and abundance ratios)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/438/139/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/438/139/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/438/139/catalog?GETtext/xml+votable180.050000true67.5524275.2988180.0055555555555555566/49 121 200 215 382 436 455 517 634 684 706 720 918 934 944 987 1028 1084 1235 1247 1330 1341 1531 1603-1604 1642 1673 1687 1728 1775 1788 1808 1810 1827 1850 1875 1914 2061 2063 2133 2169 2231 2234 2261 2317 2366 2472 2476 2579 2622 2637 2650 2658 2697 2732 2771 2777 2818 2922-2923 2984 3003 3020 3036 3069 3085 3102 3118 3258 3344 3435 3506 3639 3662 3667 3691 3718 3741 3766 3913 4028 4079 4227 4423 4468 4491 4526 4735 4808 4854 4895 5009 5053 5062 5065 5088 5154 5180 5266 5304 5339 5438 5483-5484 5488 5491 5498 5522 5531 5589 5638 5663 5670 5718 5726 5835-5836 5885 5932 6025 6056 6066 6130 6144 6153 6165 6219 6226 6298 6308 6326 6398 6409 6523 6539 6761 6926 6941 6972 6998 7115 7141 7238 7317 7354 7390 7436 7505 7763 8094 8195 8210 8232 8279 8296 8319 8476 8663 8716 8746 8788 8790 8804 8814 8845 8873 8987 8995 9072 9125 9140 9198 9327 9375 9403 9435 9476 9483 9492 9537 9662 9679 9801 9835 9841 9843 9873 9998 10006 10115 10201 10225 10247 10285 10375 10379 10425 10580 10598 10665 10812 10886 10899 10972 11142 11150 11177 11239 11314 11436 11466 11620 11633 11644 11691 11713 11732 11773 11806 11834 11858 11955 12164 12271 12295 12337 12388 12405 12424 12451 12512 12527 12592 12621 12704 12714 12718 12750 12756 12850 12890 13000 13025 13075 13124 13161 13164 13260 13437 13440 13452 13474 13478 13495 13520 13547 13554 13571 13583 13586 13620 13654 13768 13808 13943 13986 14001 14036 14092 14131 14139 14146 14151 14180-14181 14191 14204 14207 14252 14278 14358 14419 14426 14459 14534 14536 14539 14693 14838 14881 14901 14998 15030 15044 15107 15118 15174 15356 15458 15562 15597 15620 15669 15722 15727 15799 15910 15962 16013 16031 16069 16105 16144 16213 16252 16338 16386 16412 16453 16679 16883 17047 17171 17219 17245 17301 17332 17425 17556 17576 17588 17606 17695 17726 17744 17768 17835 17860 17884 18002 18035 18123 18139 18184 18289 18614-18615 18688 18711 18715 18726 18821 18888 18915 19132 19179 19181 19217 19243 19312 19323 19341 19345 19385 19419 19466 19547 19585 19745 19863 19874 19912 19923 20124 20145 20259 20278 20328 20402 20440 20446 20593 20739 20772 20862 21060 21073 21082 21177 21179 21484 21696 21699 21726 21809 21838 21858 21864 21901 21920 21989 22040 22048 22118 22120 22157 22180 22300 22340 22354-22355 22518 22527 22594 22654 22708 22818 22823 22841 22868 23015 23061 23079 23096 23140 23161 23190 23201 23230 23271 23277 23284 23344 23369 23515 23575 23583 23600 23624 23734 23774 23796 23856 23879 23938 23974 24016 24029 24093 24130 24151 24160 24329 24499 24536 24713 24775 24824 24827 24924 24942 24951 25192 25198 25407 25435 25444 25447 25491 25521 25538 25766 25782 25820 25846 25862 25869 25966 26110 26310 26326 26379 26468 26521 26575-26576 26657 26676 26748 26812 26843 26888 26898 26963 26975 27006 27075 27124 27254-27255 27323 27374 27471 27560 27712 27831 27857 27973 27975 27980 28180 28243 28342 28459 28494 28518 28549 28600 28605 28763 28915 28987 29084 29136 29196 29210 29347 29675 29721 29765 29784 29941 29958 29974 29980 30049 30096 30123 30127 30166 30206 30233 30296 30529 30540 30576 30658 30798 30825 30848 30878 30903 30965 31006 31019 31028-31029 31048 31101 31111 31117 31125 31130 31132 31172 31204 31346 31393 31399 31433 31439 31452 31478 31503 31582 31619 31751 31768 31772 31796 31848 31874 31886 31920 31975 32128 32192 32205 32357 32473 32552 32561 32612 32619 32645 32684 32757 33211 33224 33273 33281 33378 33456 33508 33552 33580 33717 33774 33849 33910 34204 34350 34446 34817 34896 34994 35064 35079-35080 35442 35533 35576 35714 35753 35948 35968 36035 36114 36126 36145 36288 36365 36446 36564 36664 36693 36697 36762 37164 37232 37408 37585 37831 38238 38440 38918 38966 38986 39157 39284 39490 39647 39709 39926 40078 40133 40679 40692 40716 40722 40823 40880 40896 40924 40931-40932 40959 41272 41463 41687 41721 41763-41764 41941 42042 42115 42248 42253 42285 42326 42486 42760 43001 43074 43310 43544 43595 43641 43962 44180 44284 44653 44879 44910 45364 45485 45669 45865 46022 46053 46076 46247 46593 46681 46829 47073 47377 47407 47589 47740 48065 48105 48226 48283 48367 48394 48613 48652 48687 48731 48736 48883 48967 49106 49114 49147https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/438/139?format=asciiOpticaldefaultJ/A+A/438/139/catalogAll parameters of the catalogue of metallicities and abundance ratiosloggGravitylog(cm.s**-2)floatVMAG? Absolute magnitude (2)magfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarHD number (BD, CD, CPD, HIP, Giclas if missing)char[Fe/H]MetallicitySunfloat[O/Fe]? Oxygen abundance relative to ironSunfloatnullable[Na/Fe]? Sodium abundance relative to ironSunfloatnullable[Mg/Fe]? Magnesium abundance relative to ironSunfloatnullable[Al/Fe]? Aluminium abundance relative to ironSunfloatnullable[Si/Fe]Silicon abundance relative to ironSunfloat[Ca/Fe]? Calcium abundance relative to ironSunfloatnullable[Ti/Fe]? Titanium abundance relative to ironSunfloatnullable[Ni/Fe]? Nickel abundance relative to ironSunfloatnullableUvel? Galactic radial velocity (1)km/sfloatnullableVvel? Galactic rotational velocity (1)km/sfloatnullableWvel? Galactic vertical velocity (1)km/sfloatnullableRmin? Perigalactic distancekpcfloatnullableRmax? Apogalactic distancekpcfloatnullableZmax? Maximum distance from galactic planekpcfloatnullableecc? Eccentricity of galactic orbitfloatnullableage? Age, in GigayearsGyrfloatnullablee_age? Relative error on age%floatnullablePthin? Thin disk membership probability%floatnullablePthick? Thick disk membership probability%floatnullablePHer? Hercules stream membership probability%floatnullableTeffEffective temperatureKint[alpha/Fe]Mean alpha abundance (1)Sunfloate_VMAG? One sigma lower limit of Mv (2)magfloatnullableE_VMAG? One sigma upper limit of Mv (2)magfloatnullableSimbadSimbad column added by the CDSchar_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