J/A+A/575/A57ivo://CDS.VizieR/J/A+A/575/A57doi:10.26093/cds/vizier.35750057CDSFlores Soriano M.Strassmeier K. G.Weber M.2017-05-30T07:01:37Z2015-02-23T09:25:06ZCDS support team

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

cds-question@unistra.frvariable-starschemical-abundanceseffective-temperatureline-intensitiesWe study the rotational modulation of chromospheric and photospheric parameters of the young, active, single K2 dwarf LQ Hya and their connection with the variability of the LiI 670.8nm line. A total of 199 high-resolution STELLA spectra were used to compute effective temperature, gravity, and chromospheric activity indicators like H{alpha} and H{beta} emission, Balmer decrement, and chromospheric electron density, as a function of the rotational phase. The variation of the LiI 670.8nm line were characterized in terms of equivalent width, abundance, and of ^6^Li/^7^Li isotopic ratio in the form of line shifts.2015A&A...575A..57Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/575/A57CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/276/345 : Photometry of variable LQ Hya (Jestu 1993)J/A+A/394/505 : UBV photometry of LQ Hya (Berdyugina+, 2002)J/A+A/542/A38 : LQ Hya V-band differential light curve (Lehtinen+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/575/A57https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/575/A57http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/575/A57https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/575/A57https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/575/A57http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/575/A57GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/575/A57/averagePhase-averaged measurements of the electron density and LiI 670.8nm central wavelengthrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhase[0/1] Central rotational phase {phi} of the averaged intervaltime.phasefloatneElectron density N_e_({phi})cm**-3phys.density;phys.electrondoublee_neError of necm**-3stat.errordoublelam.c[6707.819/6707.831] Central wavelength of the LiI 670.8nm line0.1nmem.wl.central;spect.linedoublee_lam.cError of central wavelength0.1nmstat.errorfloatJ/A+A/575/A57/singleObservation log and measurements over single spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoublePhase[0/1] Rotational phasetime.phasefloatS/N[40/120] Signal to noise ratiostat.snrintTeff[4949/5030] Effective temperatureKphys.temperature.effectiveinte_Teff[2/16] Error of TeffKstat.error;phys.temperature.effectiveintlogg[4.54/4.72] Surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0.01/0.04] Error of logglog(cm.s**-2)stat.errorfloatEWHa[0.7/1.9] Equivalent width of H{alpha} ({AA})0.1nmspect.line.eqWidth;em.line.Halphafloate_EWHaError of EWHa0.1nmstat.errorfloatFHaChromospheric radiative loss in H{alpha}kW.m**-2phot.flux;em.line.Halphafloate_FHaError of FHa (in 10^6^erg/s/cm2)kW.m**-2stat.errorfloatEWHbEquivalent width of H{beta}0.1nmspect.line.eqWidth;em.line.Hbetafloate_EWHbError of EWHb0.1nmstat.errorfloatFHbChromospheric radiative loss in H{beta}kW.m**-2phot.flux;em.line.Hbetafloate_FHbError of FHb (in 10^6^erg/s/cm2)kW.m**-2stat.errorfloatEWHe[-0.01/0.036]? Equivalent width of He D3 (1)0.1nmspect.line.eqWidthfloatnullablee_EWHe[0.006/0.014]? Error EWHeD3 (1)0.1nmstat.errorfloatnullableEWLi[0.20/0.25] Equivalent width of LiI 670.8nm0.1nmspect.line.eqWidth;em.opt.Rfloate_EWLi[0.005/0.012] Error of EWLi0.1nmstat.errorfloatlogNLi[2.5/2.7] Lithium abundance from EWLi, Teff and logg (logN_Li_+12)phys.abundfloate_logNLi[0.02/0.06] Error of logNListat.errorfloatEWCaI1[0.374/0.42] Equivalent width of CaI 643.9nm0.1nmspect.line.eqWidth;em.opt.Rfloate_EWCaI1[0.003/0.01] Error of EWCaI10.1nmstat.errorfloatEWCaI2[0.214/0.26] Equivalent width of CaI 671.8nm0.1nmspect.line.eqWidth;em.opt.Rfloate_EWCaI2[0.003/0.01] Error of EWCaI20.1nmstat.errorfloat