J/AJ/159/90ivo://CDS.VizieR/J/AJ/159/90doi:10.26093/cds/vizier.51590090CDSStonkute E.Chorniy Y.Tautvaisiene G.Drazdauskas A.Minkeviciute R.,Mikolaitis S.Kjeldsen H.von Essen C.Pakstiene E.Bagdonas V.2022-09-30T23:04:53Z2020-05-05T08:12:02ZCDS support team

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

cds-question@unistra.frchemical-abundancesvisible-astronomyspectroscopyexoplanetsf-starsstellar-agesdwarf-starsstellar-massesAbundances of lithium, carbon, and oxygen have been derived using spectral synthesis for a sample of 249 bright F, G, and K Northern Hemisphere dwarf stars from the high-resolution spectra acquired with the Vilnius University Echelle Spectrograph (VUES) at the Moletai Astronomical Observatory of Vilnius University. The sample stars have metallicities, effective temperatures, and ages between -0.7-0.4dex, 5000-6900K, 1-12Gyr, accordingly. We confirm a so far unexplained lithium abundance decrease at supersolar metallicities --A(Li) in our sample stars, which drop by 0.7dex in the [Fe/H] range from +0.10 to +0.55dex. Furthermore, we identified stars with similar ages, atmospheric parameters, and rotational velocities, but with significantly different lithium abundances, which suggests that additional specific evolutionary factors should be taken into account while interpreting the stellar lithium content. Nine stars with predominantly supersolar metallicities, i.e., about 12% among 78 stars with C and O abundances determined, have the C/O number ratios larger than 0.65, thus may form carbon-rich rocky planets. Ten planet-hosting stars, available in our sample, do not show a discernible difference from the stars with no planets detected regarding their lithium content.2020AJ....159...90Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/90CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/259 : The Tycho-2 Catalogue (Hog+, 2000)V/136 : Teff and metallicities for Tycho-2 stars (Ammons+, 2006)J/A+AS/141/371 : Low-mass stars evolution tracks & isochrones (Girardi+,2000)J/MNRAS/349/757 : Masses, ages and metallicities of F-G dwarfs (Lambert+,2004)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/A+A/503/541 : Li in late-type stars non-LTE calculations (Lind+, 2009)J/ApJ/715/1050 : Predicted abundances for extrasolar planets. I. (Bond+,2010)J/A+A/512/A54 : Teff and Fbol from Infrared Flux Method (Casagrande+, 2010)J/ApJ/725/2349 : C/O vs Mg/Si of planetary systems (Delgado Mena+, 2010)J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)J/ApJ/735/41 : Carbon and oxygen abundances in FGK stars (Petigura+, 2011)J/ApJ/732/55 : Abundances of stars with planets (Schuler+, 2011)J/A+A/547/A106 : Li abundances in the FGK dwarfs (Mishenina+, 2012)J/ApJ/756/46 : Lithium abundances in HIP stars (Ramirez+, 2012)J/A+A/562/A92 : Li abundance in solar analogues (Delgado Mena+, 2014)J/A+A/568/A25 : C and O abundances in stellar populations (Nissen+, 2014)J/A+A/580/A24 : Abundances in dwarfs, subgiants, and giants (da Silva+,2015)J/A+A/576/A69 : Li abundances in F stars (Delgado Mena+, 2015)J/MNRAS/451/4368 : Lithium abundance of solar-like stars (Lopez-Valdivia+,2015)J/ApJ/831/20 : C/O and Mg/Si for solar neighborhood's stars (Brewer+, 2016)J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)J/A+A/595/A18 : Lithium abundances in AMBRE stars (Guiglion+, 2016)J/AJ/153/21 : Abundances in region. II. F, G, & K dwarfs (Luck+, 2017)J/A+A/599/A96 : Chemical abundances of 1110 stars (Suarez-Andres+, 2017)J/A+A/619/A130 : Solar sibling candidates abundances (Adibekyan+, 2018)J/A+A/614/A55 : Li abundance in dwarfs & subgiants (Aguilera-Gomez+, 2018)J/ApJ/865/68 : Abundances for 79 Sun-like stars within 100pc (Bedell+,2018)J/A+A/615/A151 : Lithium abundances in 714 F and G dwarf stars (Bensby+,2018)J/A+A/610/A38 : Li enrichment histories of the thick/thin disc (Fu+, 2018)J/AJ/155/111 : Abundances in local region. III. Southern dwarfs (Luck,2018)J/AJ/156/171 : Cepheid abundances (Luck, 2018)J/A+A/614/A84 : C/O vs Mg/Si ratios solar type stars (Suarez-Andres+, 2018)J/A+A/628/A49 : Spectroscopy of dwarf stars (Mikolaitis+, 2019)J/A+A/621/A112 : Carbon and oxygen in 107 dwarf stars (Pavlenko+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/159/90https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/159/90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/159/90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/159/90/table3 (Abundances of Li, C, and O, atmospheric and other parameters of the stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/90/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/90/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/90/table3?GETtext/xml+votable180.050000true257.3633422.09182140.005555555555555556Cone search capability for table J/AJ/159/90/table4 (The dwarf stars with similar main parameters but different lithium abundances)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/90/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/90/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/90/table4?GETtext/xml+votable180.050000true335.657896481.93913750.005555555555555556Cone search capability for table J/AJ/159/90/table5 (*Stars of our with confirmed exoplanets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/90/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/90/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/90/table5?GETtext/xml+votable180.050000true270.628593326.31300140.0055555555555555566/3452 3551 3572 3575 3805 3813 3831 3870 3905 3911 3913 3919-3920 3927 3929 3932 3944-3945 3979 3988 4028 4062 4072 4075 7511 7595 7645 7661 7665 7674 7803-7804 7807 7839 7868 7871 7885 7887 7895 7902 7907 7913-7914 7918 7925-7926 7928 7956 7958 7962 7996 8017 8019-8020 8058 8060 8069 8073 8084 8094 8109 8111-8112 8126 8141 8143 8156 8164 8184 9294-9295 9321 9323 9327 9375 9408 9419 9430 9443 9460 9471 9476 9480 9483 9492 9532 9536 9540 9553 9591 9629 9637 9648 9660 9662 9664 9679-9680 9688 9705 9712 9801 9805 9807 9843 9854 10004 10019 10034 10043 10052 10061 10063 10090 10115 10177 10180 10188 10209 11709-11710 11732 11734-11735 11744 11746-11747 11768 11773 11955-11956 12006 12030 12044 12047 12058 12095-12096 12122 12144 12146 12158 12160 12182 12204 12228 12231-12232 12238 12259 12268 12270-12271 12274 14502 14522 14525 14568 14573 14860-14861 14881 14901 14904 14906 14917 14947-14948 14951 14959 14962 14964 14976 14981 14994 14998 15007 15014 15023 15030 15032 15044 15071 15079 15091 15144 15837 15839 15855 15865 16123 16183 16185 16220 16244 16251-16252 16291 16299 16302 16324 16338 16342 16351 16353 16357 16359 32230 32372 32459 32461 32473 32479 32537 32549 32552 32561 32575 32582 32585 32612 32617-32620 32630 32645-32646 32684 32686 32711 32748 32751 32757 32765https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/159/90?format=asciiOpticaldefaultJ/AJ/159/90/table3Abundances of Li, C, and O, atmospheric and other parameters of the starsvsini[0/25] Rotational velocitykm/sphys.veloc.rotatfloat[C/H][-0.52/0.4]? Carbon-to-hydrogen ratiophys.abundfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTYCStar namemeta.id;meta.maincharprimarypLiThis star has a different Li abundance for similar main parameters (link to Table 4)meta.ref.urlintnullableA(Li)[0/3.2] Li abundancephys.abundfloatf_A(Li)[MU] Flag on A(Li): M=measurable; U=upper limitmeta.codechare_[C/H][0.03/0.1]? Error on [C/H]stat.error;phys.abundfloatnullableo_[C/H][1/2]? Number of C-linesmeta.numberintnullable[O/H][-0.25/0.4]? Oxygen-to-hydrogen ratiophys.abundfloatnullablee_[O/H][0.03/0.15]? Error on [O/H]stat.error;phys.abundfloatnullableo_[O/H][1]? Number of O-linesmeta.numberintnullableC/O[0.2/0.8]? Carbon-to-oxygen number ratiophys.abundfloatnullableDisk[0/1] 0=Thin-disk star, 1=Thick-diskmeta.codeintPl[0/1] 1=Have any planet, 0=Have notmeta.codeintNplNumber of exoplanet confirmed for this star (link to Table 5)meta.numberintnullableTeff[4696/6947] Effective temperatureKphys.temperature.effectiveinte_Teff[21/164] Error on effective temperatureKstat.error;phys.temperature.effectiveintlogg[3.43/4.69] Surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0.1/0.54] Error on surface gravitylog(cm.s**-2)stat.errorfloat[Fe/H][-0.69/0.45] Metallicityphys.abund.Zfloate_[Fe/H][0.01/0.2] Error on metallicitystat.error;phys.abund.FefloatVt[0.24/2.1] Microturbulence velocitykm/sphys.veloc.microTurbfloate_Vt[0.1/0.4] Error on microturbulence velocitykm/sstat.errorfloatM19Display data from Mikolaitis+, 2019, J/A+A/628/A49 if anymeta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.mainJ/AJ/159/90/table4The dwarf stars with similar main parameters but different lithium abundancesAge[1.6/6.6] AgeGyrtime.agefloat_DEPosition from Simbad (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTYCStar namemeta.id;meta.maincharTeff[5691/6544] Effective temperatureKphys.temperature.effectiveintlogg[3.8/4.4] Log of surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-0.23/0.28] Metallicityphys.abund.ZfloatVt[0.77/1.83] Microturbulence velocitykm/sphys.veloc.microTurbfloatvsini[0.1/25] Rotational velocitykm/sphys.veloc.rotatfloatA(Li)[1.05/3.2] Li abundancephys.abundfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.mainJ/AJ/159/90/table5*Stars of our with confirmed exoplanetsE_Per[0.0002/5584] Positive error on Perdstat.error;stat.maxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTYCStar namemeta.id.parentcharNamePlanet namemeta.id;meta.maincharMp[0.02/9.1] Planet mass(1.898187x10+27kg)phys.massfloate_Mp[0/2.51]? Negative error on Mp(1.898187x10+27kg)stat.errordoublenullableE_Mp[0/2.51]? Positive error on Mp(1.898187x10+27kg)stat.error;stat.maxdoublenullablea[0.06/6.7] Semi major axisauphys.angSize.smajAxis;src.orbitalfloate_a[0/1.4]? Negative error on aaustat.errorfloatnullableE_a[0/4]? Positive error on aaustat.error;stat.maxfloatnullablePer[5.4/5894] Orbital perioddtime.periodfloate_Per[0.0002/1498] Negative error on Perdstat.errordoubleA(Li)[0.05/2.8]? Host star Li abundancephys.abundfloatnullablef_A(Li)[a] Flag on A(Li); a=upper limitmeta.codecharC/O[0.26/0.6]? Host star carbon-to-oxygen ratiophys.abundfloatnullableMg/Si[0.95/1.6]? Host star magnesium-to-silicium ratiophys.abundfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.main