J/A+A/576/A69ivo://CDS.VizieR/J/A+A/576/A69doi:10.26093/cds/vizier.35760069CDSDelgado Mena E.Bertran De Lis S.Adibekyan V.Z.Sousa S.G.,Figueira P.Mortier A.Gonzalez Hernandez J.I.Tsantaki M.,Israelian G.Santos N.C.2017-07-12T09:25:01Z2015-07-30T18:50:46ZCDS support team

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

cds-question@unistra.frf-starschemical-abundancesWe aim, on the one hand, to study the possible differences of Li abundances between planet hosts and stars without detected planets at effective temperatures hotter than the Sun, and on the other hand, to explore the Li dip and the evolution of Li at high metallicities. We present lithium abundances for 353 main sequence stars with and without planets in the T_eff_ range 5900-7200K. We observed 265 stars of our sample with HARPS spectrograph during different planets search programs. We observed the remaining targets with a variety of high-resolution spectrographs. The abundances are derived by a standard local thermodynamic equilibrium analysis using spectral synthesis with the code MOOG and a grid of Kurucz ATLAS9 atmospheres. We find that hot jupiter host stars within the T_eff_ range 5900-6300K show lower Li abundances, by 0.14dex, than stars without detected planets. This offset has a significance at the level 7{sigma}, pointing to a stronger effect of planet formation on Li abundances when the planets are more massive and migrate close to the star. However, we also find that the average vsini of (a fraction of) stars with hot jupiters is higher on average than for single stars in the same T_eff_ region, suggesting that rotational-induced mixing (and not the presence of planets) might be the cause for a greater depletion of Li. We confirm that the mass-metallicity dependence of the Li dip is extended towards [Fe/H]~0.4dex (beginning at [Fe/H]~-0.4dex for our stars) and that probably reflects the mass-metallicity correlation of stars of the same T_eff_ on the main sequence. We find that for the youngest stars (<1.5Gyr) around the Li dip, the depletion of Li increases with vsini values, as proposed by rotationally-induced depletion models. This suggests that the Li dip consists of fast rotators at young ages whereas the most Li-depleted old stars show lower rotation rates (probably caused by the spin-down during their long lifes). We have also explored the Li evolution with [Fe/H] taking advantage of the metal-rich stars included in our sample. We find that Li abundance reaches its maximum around solar metallicity, but decreases in the most metal-rich stars, as predicted by some models of Li Galactic production.2015A&A...576A..69Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/576/A69CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/576/A69https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/576/A69http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/576/A69https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/576/A69https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/576/A69http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/576/A69GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/576/A69/stars (Li abundances for all stars used (tables 3--6))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/576/A69/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/576/A69/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/576/A69/stars?GETtext/xml+votable180.050000true1.5798978-49.07518940.0055555555555555566/871 1597 2110 2416 2472 2497 3876 4136 4990 5067 5522 6821 6831 7746 8197 8843 9173 9459 9483 11087 12146 12424 12465 12644 13439 13680 13702 14434 14522 14918 14973 15129 16408 16502 16511 16514 16518 16528 16533 16543 16603 16627 16639 16649 16682 16776 16855 16882 16890 16931 16986 16988 16995 17011 17035 17047 17172 17177 17209 17218 17249 17284 17314 17353 17358 17374 17435 17453 17480 17483 17529 17540 17641 17662 17671 17685 17714 17734 17744 17768 17819 17954 17993 18005 18067 18093 18615 18643 18711 18766 18772 18792 18835 18838 18963 19072 19217 19466 19619 20116 20339 20492 20638 20640 20661 20667 20712 20766 20772 20873 21003 21066 21080 21110 21117 21194 21211 21213 21317 21412 21477 21551 21691 21696 21774 21779 21838 21912 21989 22001 22036 22065 22120 22162 22208 22545 22606 22613 22619 22630 22654 22684 22708 22724 22734 22760 22813 22816 22843 23030 23061 23066 23084 23097 23138 23187 23201 23414 24019 24409 24718 24729 24759 24791 24809 24816 24850 24876 24897 25015 25102 25121 25153 25194 25224-25225 25233 25241 25258 25266 25279 25401 25474 25512 25538 25545 25584 25593 25604 25622 25636 25702 25773 25826 25839 25880 25889 25906 26016 26019 26126 26128 26142 26305 26626 26655 26680 26743 26780 26796 26812 26828 26906 26934 26961 27019 27021 27030 27164 27217 27616 27741 28763-28764 28821-28822 28843 28854 28874 28887 28894 29107 29143 29146 29236 29295 29349 29410 29418 29461 29521 29563 29565 29595-29596 29675 29688 29756 29838 29842 29928 29974 29984 30008 30310 30343 30378 30526 30707 30789 30825 30848 30862 30864 30890 30937 30939 30951 31037 31039 31254 31380 31393 31494 31503 31641 32749 32836 32838 32848 32912 32915 32993 32998 33020 33042 33063 33160 33179 33182 33204 33210 33212 33214 33273 33357 33418 33421 33427 33510 33552 33555 33571 33630 33662 33685 33709 33717 33782 33798 33871 33879 33945 33949 33963 34039 34060 34102 34128 34164 34173 34192 34204 34306 34308 34336 34361 34408 34497 34515-34516 34519 34536 34591 34618 34638 34673-34674 34684 34686 34708 34744 34817 34864 34905 34947 34951 34953 34966 35017 35027 35036 35074 35119 35174 35202 35210 35228 35288 35291 35339 35362 35392 35415 35440 35502 35533 35590 35691 35733 35776 35779 35781 35784 35786 35790 35831 35855 35885 35896 35928 35966 35969 36008 36015 36019 36025 36079 36089 36115 36133 36142 36165 36168 36238 36249 36285 36288 36360 36418 36492 36506 36540-36542 36590 36723 36726 36772 36800 36813 36825 36926 36971 36977 37049 37074 37130 37134 37208 37222 37232 37252 37308 37329 37357 37383 37397 37419 37422 37449 37583 37595 37636 37660 37668 37679 37797 37807-37808 37841 37922-37923 37995 38065 38120 38138 38149 38216 38219 38226 38229 38238 38283 38288 38311 38349 38433-38434 38443 38462 38480 38521 38605 38682 38734 38738 38743 38788 38792 38813 38836-38837 38857 38934 38944 38955 38971 38986 39030 39093 39110 39149 39176 39200 39219 39257 39282-39283 39298 39314 39316 39321 39377 39402 39404 39422 39600 39646 39688 39691 39733 39775 39859 39915 39920 39926 40007 40019 40058 40078 40197 40220 40302 40375 40400 40415 40442 40453 40480 40590 40662 40686 40749 40833 40853-40854 40862 40864 40931 40938 40970-40971 40988 41016 41107 41112 41143 41167 41175 41255 41355 41407 41446 41459 41463 41515 41533 41564 41590-41591 41611-41612 41687 41714 41723-41724 41752 41755 41853 41861 41913 41949 41954 41969 42003 42022 42146 42171 42197 42200 42221 42245 42281 42300 42326-42327 42343 42379 42386 42448 42460 42479 42486 42501 42595 42632 42644 42662 42769 42814 42828 42891-42892 42906 42918 42928 42934 42936 42965 43001 43012 43067 43095 43171 43177 43228 43267 43287 43290 43306 43315 43321 43345 43547 43558 43567 43569 43610 43612 43649 43665 43672 43676 43680 43771 43778 43781 43800-43801 43847 43928 43944 43954 44005 44025 44150-44151 44208 44262 44287 44315 44340 44347 44355 44374 44383 44442 44600 44608 44637-44638 44653 44683 44740 44753 44791-44792 44812 44879 44884 44887 44918 44925 44937 44951 45078 45124 45168 45204 45228 45237 45258 45261 45265 45299 45309 45334 45337 45376 45378 45386 45391 45412 45420 45430 45446 45457 45502 45511 45539 45559 45564 45589 45656 45682 45706 45721 45754 45758 45792 45823 45827 45853 45865 45873 45892 45902 45917 45924 45945 45974 46019 46053 46074 46084 46111-46112 46135 46203 46234 46249 46271 46273-46274 46297 46306 46333 46352 46357 46494 46559 46639-46640 46646 46664 46671 46687 46705 46728 46734 46776 46800 46805 46829 46843 46874 46936 46944 46971 46978 46983 46997 47004 47020 47022 47030 47061 47065 47077 47184 47198 47253 47364 47377 47387 47390 47407 47476 47510 47550 47567 47575 47629 47655 47712 47795 47858 47898 47903 47942 48014 48022 48050 48105 48113 48172 48177 48182 48205 48282 48350 48361-48362 48371 48478 48490 48513 48581 48583 48664 48679 48705 48707 48727 48731 48768 48792 48846 48871 48882 48980 49001 49010 49036 49042 49064 49097 49114 49128https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/576/A69?format=asciidefaultJ/A+A/576/A69/starsLi abundances for all stars used (tables 3--6)SimbadNameSimbad column added by the CDSmeta.idcharTeff[4556/7212] Effective temperatureKphys.temperature.effectiveintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTmeta.id;meta.datasetintnullableSampleSample (HARPS-2, HARPS-4, or blank) (3)src.samplecharStarStar namemeta.id;meta.maincharlogg[3.9/5] Surface gravitylog(cm.s**-2)phys.gravityfloatvt[0/3.1] Microturbulent velocity {xi}km/sphys.velocfloat[Fe/H][-1.4/0.6] Metallicitylog(Sun)phys.abund.ZfloatAge[0.1/12]? AgeGyrtime.agefloatnullableMass[0.7/1.7]? MasssolMassphys.massfloatnullablel_A(Li)Limit flag on A(Li)meta.code.errorcharA(Li)[-1.1/3.4] Lithum abundancephys.abundfloate_A(Li)[0.02/0.15]? rms uncertainty on A(Li)stat.errorfloatnullablevsini[2/18]? Rotational velocitykm/sphys.veloc.rotatfloatnullableJhot[yes/no ] Hot jupiter? (blank when no planet)meta.notecharInst[1/11]? Instrument used (1)instr.setupintnullableRefReference for the stellar parameters (2)meta.ref;pos.framechar_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.main