J/MNRAS/400/317ivo://CDS.VizieR/J/MNRAS/400/317doi:10.26093/cds/vizier.74000317CDSJeffries R.D.Jackson R.J.James D.J.Cargile P.A.2024-07-09T20:16:15Z2010-10-18T12:32:02ZCDS support team

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

cds-question@unistra.fropen-star-clusterspre-main-sequence-starsradial-velocityline-intensitiesWe have used fibre spectroscopy to establish cluster membership and examine pre-main-sequence (PMS) lithium depletion for low-mass stars (spectral types F to M) in the sparse young (~30Myr) cluster IC 4665. We present a filtered candidate list of 40 stars that should contain 75 per cent of single cluster members with 11.5<V<18 in the central square degree of the cluster. Whilst F- and G-type stars in IC 4665 have depleted little or no lithium, the K- and early M-type stars have depleted more Li than expected when compared with similar stars in other clusters of known age. An empirical age estimate based on Li depletion among the late-type stars of IC 4665 would suggest that it is older than 100Myr.2009MNRAS.400..317Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/400/317CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/194 : Photometric study of IC 4665 (McCarthy+ 1969)J/AJ/105/1441 : IC 4665 (Prosser 1993)J/AJ/106/637 : ICCD speckle observations. IX (Mason+, 1993)J/A+A/448/189 : IzJHK photometry of IC4665 (de Wit+, 2006)J/A+A/479/141 : Iz photometry, RV and EW(Li) in IC 4665 (Manzi+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/400/317https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/400/317http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/400/317https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/400/317https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/400/317http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/400/317GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/400/317/table1 (The spectroscopic measurements of 452 photometric candidates in IC 4665)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/400/317/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/400/317/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/400/317/table1?GETtext/xml+votable180.050000true266.891186.162810.0055555555555555566/31785 31787-31788 31790https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/400/317?format=asciiOpticaldefaultJ/MNRAS/400/317/table1The spectroscopic measurements of 452 photometric candidates in IC 4665NameName (N_NNN)meta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMSimbad column added by the CDSmeta.ref.urlcharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainVmagAF2/WYFFOS V magnitudemagphot.mag;em.opt.VfloatV-IAF2/WYFFOS V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatNobsNumber of observations for radial velocitiesmeta.numberintHJD1? Measurement 1, HJD-2454600dtime.epochfloatnullableHRV1? Measurement 1 heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_HRV1? rms uncertainty on RV1km/sstat.errorfloatnullableHJD2? Measurement 2, HJD-2454600dtime.epochfloatnullableHRV2? Measurement 2 heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_HRV2? rms uncertainty on RV2km/sstat.errorfloatnullableHJD3? Measurement 3, HJD-2454600dtime.epochfloatnullableHRV3? Measurement 3 heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_HRV3? rms uncertainty on RV3km/sstat.errorfloatnullableHJD4? Measurement 4, HJD-2454600dtime.epochfloatnullableHRV4? Measurement 4 heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_HRV4? rms uncertainty on RV4km/sstat.errorfloatnullableHRV? Mean heliocentric radial velocitykm/sspect.dopplerVeloc;stat.meanfloatnullablee_HRV? rms uncertainty on RVkm/sstat.errorfloatnullableSNRSignal-to-noise ratio of the averaged spectrumstat.snrintEWLi? Measured Li equivalent width0.1pmspect.line.eqWidthintnullablee_EWLi? rms uncertainty on EWLi0.1pmstat.errorintnullablevsini? Rotational velocitykm/sphys.veloc.rotatfloatnullablee_vsini? rms uncertainty on vsinikm/sstat.error;phys.veloc.rotatfloatnullableVar[0/2]? RV variability flag (0=not variable) (1)meta.code;src.varintnullableCCF[0/2]? Cross-correlation function with the template standard star shows evidence for more than one star (1=evidence of binarity)meta.code.multipintnullableP93? Prosser et al., 1993, Cat. J/AJ/105/1441 <Cl* IC 4665 P NNN> in Simbadmeta.idintnullableM08? Manzi et al., 2008, Cat. J/A+A/479/141 <Cl* IC 4665 MRD NNN> in Simbadmeta.idintnullableJ/MNRAS/400/317/table2Properties of candidate RV members of IC 4665NameName (N_NNN)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVmagAF2/WYFFOS V magnitudemagphot.mag;em.opt.VfloatV-IAF2/WYFFOS V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatEWLiLithium equivalent width0.1pmspect.line.eqWidthinte_EWLi? rms uncertainty on EWLi (1)0.1pmstat.errorintnullableRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloatvsiniRotational velocitykm/sphys.veloc.rotatfloate_vsini? rms uncertainty on vsini (1)km/sstat.error;phys.veloc.rotatfloatnullableEWHaH{alpha} equivalent width (positive=emission)0.1nmspect.line.eqWidthfloatEWCaI1Equivalent width of the gravity-sensitive [CaI] 6439{AA} line0.1nmspect.line.eqWidthfloatEWCaI2Equivalent width of the gravity-sensitive [CaI] 6463{AA} line0.1nmspect.line.eqWidthfloatpmRA? Proper motion along right ascension (from NOMAD catalog, Cat. I/297)mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA? rms uncertainty on RAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion along declination (from NOMAD catalog, Cat. I/297)mas/yrpos.pm;pos.eq.decfloatnullablee_pmDE? rms uncertainty on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableMm[Y/N?] Final assessment of membership flagphys.atmol.finalcharJ/MNRAS/400/317/table3Lithium abundances in IC 4665recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (N_NNN)meta.id;meta.maincharV-IAF2/WYFFOS V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatTeffEffective temperatureKphys.temperature.effectiveintl_A(Li)LTELimit flag on A(Li)LTEmeta.code.errorcharA(Li)LTE? LTE Li abundance, A(Li)=12+log[N(Li)/N(H)]magphys.abundfloatnullablee_A(Li)LTE? rms uncertainty on A(Li)LTEmagstat.errorfloatnullablel_A(Li)NLTELimit flag on A(Li)NLTEmeta.code.errorcharA(Li)NLTE? NLTE Li abundance, A(Li)=12+log[N(Li)/N(H)], for stars with Teff>4500Kmagphys.abundfloatnullable