J/A+A/566/A50ivo://CDS.VizieR/J/A+A/566/A50doi:10.26093/cds/vizier.35660050CDSDamiani F.Prisinzano L.MicelaG.Randich S.Gilmore G.Drew J.E.,Jeffries R.D.Fremat Y.Alfaro E.J.Bensby T.Bragaglia A.,Flaccomio E.Lanzafame A.C.Pancino E.Recio-Blanco A.Sacco G.G.,Smiljanic R.Jackson R.J.de Laverny P.Morbidelli L.Worley C.C.,Hourihane A.Costado M.T.Jofre P.Lind K.Maiorca E.2023-07-24T15:11:33Z2014-06-11T06:46:36ZCDS support team

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

cds-question@unistra.fropen-star-clusterspre-main-sequence-starsmorgan-keenan-classificationWe present a study of spectral diagnostics available from optical spectra with R=17000 obtained with the VLT/Giraffe HR15n setup, using observations from the Gaia-ESO Survey, on the {gamma} Vel young cluster, with the purpose of classifying these stars and finding their fundamental parameters. We define several spectroscopic indices, sampling the amplitude of TiO bands, the H{alpha} line core and wings, and temperature- and gravity-sensitive sets of lines, each useful as a Teff or logg indicator over a limited range of stellar spectral types. H{alpha} line indices are also useful as chromospheric activity or accretion indicators. Furthermore, we use all indices to define additional global Teff- and logg-sensitive indices {tau} and {gamma}, valid for the entire range of types in the observed sample.2014A&A...566A..50Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/566/A50CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/686/1195 : IR photometry in the {gamma} Vel cluster (Hernandez+, 2008)J/A+A/563/A94 : Kinematics of the Gamma Vel cluster (Jeffries+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/566/A50https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/566/A50http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/566/A50https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/566/A50https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/566/A50http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/566/A50GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/566/A50/table3 (Spectral indices for {gamma} Vel dataset (for 1242 distinct stars))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/566/A50/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/566/A50/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/566/A50/table3?GETtext/xml+votable180.050000true121.8279167-46.89911110.0055555555555555566/39194 39205 39216-392183.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/566/A50?format=asciiOpticaldefaultJ/A+A/566/A50/table1Wavelength ranges for definition of spectral indicesIndexIndex namemeta.id;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Index[a] Note on Index (1)meta.notecharArangeA wavelength range(s) of the numeratorem.wlcharn_Arange[b] Note on Arange (1)meta.notecharBrangeB wavelength range(s) of the denominatorem.wlcharJ/A+A/566/A50/table3Spectral indices for {gamma} Vel dataset (for 1242 distinct stars)muIndex {mu}=0.25({mu}_1_+{mu}_3_+{mu}_5_+{mu}_7_)spect.indexfloate_muError on mustat.errorfloatbetaIndex {beta}=1-{beta}_c_/{beta}_t_spect.indexfloate_beta? Error on betastat.errorfloatnullablegammaIndex {gamma}={beta}+{gamma}_1_spect.indexfloate_gammaError on gammastat.errorfloattauIndex {tau} = min({alpha}_w_,1) - {beta}_t_ - {zeta}_1_ + 3*{mu}spect.indexfloate_tauError on taustat.errorfloatNspec[1/1802] Sequential spectrum numbermeta.record;phys.atmol.number;meta.mainintprimaryJNameStar name from coordinates (HHMMSSss+DDMMSSs)meta.id;meta.maincharJDJulian Date of observationdtime.epochdoubleVmag[12/19] Apparent Johnson V magnitudemagphot.mag;em.opt.VfloatV-Ic[0.2/5.0] Johnson-Cousins V-I color indexmagphot.color;em.opt.V;em.opt.IfloatS/NSignal/noise ratiostat.snrfloatmu1Index {mu}_1_spect.indexdoublee_mu1? Error on mu1stat.errorfloatnullablemu2Index {mu}_2_spect.indexfloate_mu2? Error on mu2stat.errorfloatnullablemu3Index {mu}_3_spect.indexfloate_mu3? Error on mu3stat.errorfloatnullablemu4Index {mu}_4_spect.indexfloate_mu4? Error on mu4stat.errorfloatnullablemu5Index {mu}_5_spect.indexfloate_mu5? Error on mu5stat.errorfloatnullablemu6Index {mu}_6_spect.indexfloate_mu6? Error on mu6stat.errorfloatnullablemu7Index {mu}_7_spect.indexfloatalphawIndex {alpha}_w_spect.indexfloatalphacIndex {alpha}_c_spect.indexfloatbetatIndex {beta}_t_spect.indexfloatbetacIndex {beta}_c_spect.indexfloatzeta1Index {zeta}_1_spect.indexfloatgamma1Index {gamma}_1_spect.indexfloatNotes[M SB2] Membership/binarity flags (1)meta.notechar_RAPositions (from star name) (right ascension part)degpos.eq.ra;meta.main_DEPositions (from star name) (declination part)degpos.eq.dec;meta.maine_mu7? Error on mu7stat.errorfloatnullablee_alphawError on alphawstat.errorfloate_alphac? Error on alphacstat.errorfloatnullablee_betat? Error on betatstat.errorfloatnullablee_betac? Error on betacstat.errorfloatnullablee_zeta1? Error on zeta1stat.errorfloatnullablee_gamma1? Error on gamma1stat.errorfloatnullable