J/A+A/547/A106ivo://CDS.VizieR/J/A+A/547/A106doi:10.26093/cds/vizier.35470106CDSMishenina T.V.Soubiran C.Kovtyukh V.V.Katsova M.M.Livshits M.A.2017-12-18T07:57:17Z2012-11-06T07:51:48ZCDS support team

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

cds-question@unistra.frlate-type-starsdwarf-starschemical-abundancesThe aim of the present study is to determine the Li abundances for a large set of the FGK dwarfs and to analyse the connections between the Li content, stellar parameters, and activity. The atmospheric parameters, rotational velocities and the Li abundances were determined from a homogeneous collection of the echelle spectra with high resolution and a high signal-to-noise ratio. The rotational velocities vsini were determined by calibrating the cross-correlation function. The effective temperatures Teff were estimated by the line depth ratio method. The surface gravities logg were computed by two methods: the iron ionization balance and the parallax. The LTE Li abundances were computed using synthetic spectra method. The behaviour of the Li abundance was examined in correlation with Teff, [Fe/H], as well as with vsini and the level of activity in three stellar groups of the different temperature range. The stellar parameters and the Li abundances are presented for 150 slow rotating stars of the lower part of MS. The studied stars show a decline in the Li abundance with decreasing temperature Teff and a significant spread, which should be due to the difference of age of stars. The correlations between the Li abundances, rotational velocities vsini, and the level of the chromospheric activity were discovered for the stars with 6000>Teff>5700K, and it is tighter for the stars with 5700>Teff>5200K. The target stars with Teff<5200K do not show any correlation between log A(Li) and vsini. The relationship between the chromospheric and coronal fluxes in active with detected Li as well as in less active stars gives a hint that there exist different conditions in the action of the dynamo mechanism in those stars. We found that the Li-activity correlation is evident only in a restricted temperature range and the Li abundance spread seems to be present in a group of low chromospheric activity stars that also show a broad spread in the chromospheric vs. coronal activity.2012A&A...547A.106Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/547/A106CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)J/MNRAS/253/610 : Li abundances for 81 F dwarfs (Lambert+, 1991)J/AJ/105/2299 : Li abundance of solar-type stars. II. (Soderblom+, 1993)J/AJ/111/439 : Chromospheric emission in late-type stars. (Henry+ 1996)J/A+A/409/251 : Li abundances and velocities in F and G stars (Mallik+, 2003)J/ApJS/152/261 : Chromospheric Ca II emission in nearby stars (Wright+, 2004)J/PASJ/57/45 : Lithium abundances of F-K stars (Takeda+, 2005)J/A+A/468/663 : Li abundances in solar-analog stars (Takeda+, 2007)J/A+A/521/A12 : RVs of nearby late-type stars (Maldonado+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/547/A106https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/547/A106http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/547/A106https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/547/A106https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/547/A106http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/547/A106GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/547/A106/table3 (The stellar parameters, determined in the present study)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/547/A106/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/547/A106/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/547/A106/table3?GETtext/xml+votable180.050000true1.6532729.02150110.0055555555555555566/60 100 137 237 309 342 377 742 819 890 1077 1530 1875 2167 2491 2572 2652 3147 3313 3372 3509 3639 3683 3697 3780 3809 3915 3979 4241 4278 4591 4762 4920 4942 5304 5413 5670 5824 6217 6273 6287 6385 6662 6766 6953 7443 8224 8357 8466 8887 8995 9476 10004 10062 10325 10518 10914 11103 11126 11165 11732 12228 12282 12340 12388 12494 12592 12654 12846 12856 12944 12983 13036 13487 13547 13568 13749 13763 13769 13778 13791 14180 14252 14278 14290 14342 14438 14502 14650 15221 15227 15243 15373 15746 15775 16220 16342 17219 17777 18115 18139 18299 19219 19327 19816 19836 19912 20127 20328 20402 21177 21726 21953 23230 23342 23515 23535 23537 23545 23548 23583 23661 23960 24028 24036 24117 24239 24558 27109 27462 27954 28122 28400 30176 30665 30965 31130 31145 31399 31425 32001 32067 32211 32224 32318 32509 32520 36664 44284https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/547/A106?format=asciiOpticaldefaultJ/A+A/547/A106/table3The stellar parameters, determined in the present studyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHD/BDHD/BD name of starmeta.id;meta.maincharTeffMean effective temperature of the starKphys.temperature.effective;stat.meanintlogg1Gravity spectroscopiclog(cm.s**-2)phys.gravityfloatlogg2? Gravity astrometriclog(cm.s**-2)phys.gravityfloatnullable[Fe/H]? Metallicityphys.abund.Zfloatnullablevsini? Rotation velocitykm/sphys.veloc.rotatfloatnullableTypeObject type from SIMBADsrc.classcharRX? X-ray emission adopted from ROSAT catalogs or estimated from ROSAT archive dataphys.luminosity;em.X-rayfloatnullablelogR'HK? Chromospheric activity indexspect.indexfloatnullableRefReference (1)meta.ref;pos.framecharl_logA(Li)Limit flag on logA(Li)meta.code.errorcharlogA(Li)Abundance of Liphys.abundfloatu_logA(Li)Uncertainty flag on logA(Li)meta.code.errorcharAct[A wA] High or weak class of activity (2)meta.code.classchar1RXSCross-match with the ROSAT all-sky bright source catalog within 30"meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.refchar_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