J/A+A/597/A52ivo://CDS.VizieR/J/A+A/597/A52doi:10.26093/cds/vizier.35970052CDSMeunier N.Lagrange A.-M.Mbemba Kabuiku L.Alex M.Mignon L.,Borgniet S.2017-12-15T10:55:28Z2016-12-21T09:26:59ZCDS support team

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

cds-question@unistra.frdwarf-starsk-starsmagnetic-fieldsradial-velocityIn solar-type stars, the attenuation of convective blueshift by stellar magnetic activity dominates the RV (radial velocity) variations over the low amplitude signal induced by low mass planets. Models of stars that differ from the Sun will require a good knowledge of the attenuation of the convective blueshift to estimate its impact on the variations. It is therefore crucial to precisely determine not only the amplitude of the convective blueshift for different types of stars, but also the dependence of this convective blueshift on magnetic activity, as these are key factors in our model producing the RV. We studied a sample of main sequence stars with spectral types from G0 to K2 and focused on their temporally averaged properties: the activity level and a criterion allowing to characterise the amplitude of the convective blueshift. This criterion is derived from the dependence of the convective blueshift with the intensity at the bottom of a large set of selected spectral lines.2017A&A...597A..52Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/597/A52CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/487/373 : Spectroscopic parameters of 451 HARPS-GTO stars (Sousa+, 2008)J/A+A/607/A124 : K-G-F dwarfs stellar granulation variability (Meunier+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/597/A52https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/597/A52http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/597/A52https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/597/A52https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/597/A52http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/597/A52GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/597/A52/table3 (Lists of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/597/A52/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/597/A52/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/597/A52/table3?GETtext/xml+votable180.050000true4.4952931-13.45564080.0055555555555555566/16639 16883 16986 17218 17249 17314 17341 17425 17730 17768 17804 18005 18614-18615 18637 18792 19003 19072 19108 20557 20621 20873 21117 21121 21412 21484 21516 21779 21906 22036 22608 22619 22708 23123 23177 24769 25078 25102 25225 25584 25889 25906 25939 26242 26768 26828 26888 26906 28719 28887 29289 29675 29833 29838 29900 30310 30878 30943 30951 32848 32986 33082 33091 33219 33552 33705 33813 33879 34442 34446 34530 34864 34947 34983 35230 35468 35733 35831 35896 35928 35969 36288 36813 37419 37660 37808 37831 37955 38099 38229 38238 38279 38311 38443 38545 38562 38605 38698 38742 38788 38807 38857 39219 39283 39422 39576 39767 39854 40105 40317 40686 40692 40722 40921 40938 41094 41590 41607 41611 41724 41752 41954 41969 42022 42146 42171 42814 42918 43228 43290 43345 43544 43649 43724 43911 44150 44359 45502 45668 45902 46080 46172 46193 46234 46287 46297 46306 46355 46640 46664 46681 46800 46874 47045 47590 47629 47858 48362 48519 48530 48652 48664 48705 48821 48846 48943 49128https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/597/A52?format=asciiOpticaldefaultJ/A+A/597/A52/table3Lists of studied starsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharSpTypeSpectral type from SIMBAD (CDS)src.spTypecharB-VB-V colour index from SIMBAD (CDS)magphot.color;em.opt.B;em.opt.VfloatTeffEffective temperature from Sousa et al. (2008, Cat. J/A+A/487/373)Kphys.temperature.effectiveintNspNumber of spectra used in the analysismeta.numberintTSSSlope of the radial velocity versus line intensity (1)spect.indexfloate_TSS1 {sigma} uncertainty on the TSSstat.errorfloatlogR'HKAveraged logR'HK indexphot.flux;arith.ratiofloate_logR'HK1 {sigma} uncertainty logR'HKstat.errorfloatConvBLConvective blueshift (2)m/sspect.dopplerVelocint_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/597/A52/table4List spectral lines usedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLambdaWavelength (1)0.1nmem.wldoubleElElementphys.atmol.elementcharNBNumber of data sets in which it is usedmeta.numberint