J/A+A/573/A126ivo://CDS.VizieR/J/A+A/573/A126doi:10.26093/cds/vizier.35730126CDSDesidera S.Covino E.Messina S.Carson J.Hagelberg J.Schlieder J.E.,Biazzo K.Alcala J.Chauvin G.Vigan A.Beuzit J.L.Bonavita M.,Bonnefoy M.Delorme P.D'Orazi V.Esposito M.Feldt M.Girardi L.,Gratton R.Henning T.Lagrange A.M.Lanzafame A.C.Launhardt R.,Marmier M.Melo C.Meyer M.Mouillet D.Moutou C.Segransan D.,Udry S.Zaidi C.M.2021-08-20T08:00:51Z2015-01-09T08:10:46ZCDS support team

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

cds-question@unistra.frpre-main-sequence-starsradial-velocitystellar-agesphotometryYoung, close stars are ideal targets for searching planets using the direct imaging technique. The determination of stellar parameters is crucial for the interpretation of imaging survey results, particularly since the luminosity of substellar objects has a strong dependence on system age. We have conducted a large program with NaCo at the VLT to search for planets and brown dwarfs in wide orbits around 86 stars. A large fraction of the targets observed with NaCo were poorly investigated in the literature. We performed a study to characterize the fundamental properties (age, distance, and mass) of the stars in our sample. To improve target age determinations, we compiled and analyzed a complete set of age diagnostics. We measured spectroscopic parameters and age diagnostics using dedicated observations acquired with FEROS and CORALIE spectrographs at La Silla Observatory. We also made extensive use of archival spectroscopic data and the results that are available in the literature. Additionally, we exploited photometric time-series, which are available in ASAS and Super-WASP archives, to derive a rotational period for a large fraction of our program stars. We provided updated characterization of all the targets observed in the VLT NaCo Large program, a survey designed to probe the occurrence of exoplanets and brown dwarfs in wide orbits. The median distance and age of our program stars are 64pc and 100Myr, respectively. Nearly all the stars have masses between 0.70 and 1.50M_{sun}_, with a median value of 1.01M_{sun}_. The typical metallicity is close to solar with a dispersion that is smaller than that of samples usually observed in radial velocity surveys. Several stars are confirmed or proposed here to be members of close young moving groups. Eight spectroscopic binaries are identified.2015A&A...573A.126Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/573/A126CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/573/A126https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/573/A126http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/573/A126https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/573/A126https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/573/A126http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/573/A126GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/573/A126/sample ((tables 9-12))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/573/A126/sample?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/573/A126/sample?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/573/A126/sample?GETtext/xml+votable180.050000true3.0316667-15.84250.0055555555555555566/4190 12436 16426 17016 17169 17887 19540 20544 21217 21418 21424 24633 28784 28849 29219 29718 29993 29999 33100 33361 33464 33691 33694 34146 34203 34423 34436 35077 35409 36079 36490 36713 37414 37508 37607 37616 37647 38061 38137 38254 38714 38910 39023 39123 39579 39692 39735 40242 41193 41528 41565 41598 41600 41960 42096 42147 42493 42555 42622 42678 42815 42869 42955 43014 43028 43209 43432 44067 44291 44324 44377 45072 45253 45384 45388 45453 46520 46566 46777 46788 47125 47598 48045 48082 48651 490198.650015785639275e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/573/A126?format=asciidefaultJ/A+A/573/A126/sample(tables 9-12)Age? Adopted stellar ageMyrtime.ageintnullableTsp? Spectroscopic effective temperatureKphys.temperature.effectiveintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/86] Sequential numbermeta.recordintm_Seq[C] Companion star (G1)meta.code.multipcharu_Seq[*?] Uncertainty flag (G1)meta.code.errorcharNphNumber of photometric results (table D1)meta.ref.urlintnullableName1Target name1meta.id;meta.maincharprimaryName2Target name2 (alternative name)meta.idcharRAJ2000Right Ascension J2000pos.eq.ra;meta.mainDEJ2000Declination J2000pos.eq.dec;meta.mainVmag[3/12] V band magnitudemagphot.mag;em.opt.VfloatB-V[-0.2/1.5] B-V color indexmagphot.color;em.opt.B;em.opt.VfloatV-I[-0.2/2.1]? V-I color indexmagphot.color;em.opt.V;em.opt.IfloatnullableJmag[2.5/9.5]? J band magnitude (from 2MASS)magphot.mag;em.IR.JfloatnullableHmag[2.4/9.0]? H band magnitude (from 2MASS)magphot.mag;em.IR.HfloatnullableKmag[2.4/8.9]? Ks band magnitude (from 2MASS)magphot.mag;em.IR.KfloatnullableSpTypeMK spectral typesrc.spTypechar[Fe/H][-0.3/0.1]? Iron abundancelog(Sun)phys.abund.FefloatnullableM*[0.4/2.9]? Stellar masssolMassphys.massfloatnullablee_M*? Error on stellar masssolMassstat.errorfloatnullableplx[10/306]? Trigonometric parallaxmaspos.parallax.trigfloatnullablee_plx? Error on trigonometric parallaxmasstat.error;pos.parallaxfloatnullableDph[6/109]? Photometric distancepcpos.distance;pos.heliocentricfloatnullableD[3/200] Adopted distancepcpos.distance;pos.heliocentricfloatpmRAProper motion in RAmas/yrpos.pm;pos.eq.rafloate_pmRAError on proper motion in RAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in DEmas/yrpos.pm;pos.eq.decfloate_pmDEError on proper motion in DEmas/yrstat.error;pos.pm;pos.eq.decfloatRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV? Error on radial velocitykm/sstat.errorfloatnullableUvel? U space velocitykm/sphys.veloc;pos.cartesian.xfloatnullablee_Uvel? Error on U space velocitykm/sstat.errorfloatnullableVvel? V space velocitykm/sphys.veloc;pos.cartesian.yfloatnullablee_Vvel? Error on V space velocitykm/sstat.errorfloatnullableWvel? W space velocitykm/sphys.veloc;pos.cartesian.zfloatnullablee_Wvel? Error on W space velocitykm/sstat.errorfloatnullableMGaMoving group membershipmeta.id.parentcharl_logLX[<] indicate upper limit on logLXmeta.code.errorcharlogLX[26/31]? Logarithm of Xray luminositylog(mW.m**-2)phys.luminosity;em.X-rayfloatnullablel_RX[<] indicate upper limit on RXmeta.code.errorcharRX[-7.4/-2.7]? Luminosity ratio RX=logLX/Lbolphys.luminosity;arith.ratiofloatnullableSind[0.1/3.8]? CaII H&K S-index (M. Wilson scale)phot.flux;arith.ratiofloatnullablelogR'HK[-4.9/-3.8]? CaII H&K chromospheric emissionphot.flux;arith.ratiofloatnullableProt[0.2/40]? Rotation perioddtime.periodfloatnullablee_Prot? Error on rotation perioddstat.errorfloatnullableq_Prot[CLU] Quality flag of period determined: C=confirmed, L=likely, U=uncertainmeta.code.qualcharvsini[1/240]? Projected rotational velocitykm/sphys.veloc.rotatfloatnullableEWLi? Lithium 6708{AA} equivalent width (m{AA})0.1pmspect.line.eqWidthintnullablee_Tsp? Error on spectroscopic TeffKstat.errorintnullableTph? Photometric effective temperatureKphys.temperature.effectiveintnullablee_Tph? Error on photometric TeffKstat.errorintnullablel_Age1[<=> ] indicate upper limitmeta.code.errorcharAge1? Stellar age from Li lineMyrtime.ageintnullablel_Age2[<=> ] indicate upper limitmeta.code.errorcharAge2? Stellar age from X-rayMyrtime.ageintnullablel_Age3[<= ] indicate upper limitmeta.code.errorcharAge3? Stellar age from logR'HKMyrtime.ageintnullableAge4? Stellar age from rotation periodMyrtime.ageintnullableQp[U] Quality flag of period determined (1)meta.notecharKinKinematic group membershipmeta.id.parentcharAge5? Stellar age from isochrone fittingMyrtime.ageintnullablee_Age5? Error on age from isochrone fittingMyrstat.errorintnullableb_Age? Minimum stellar ageMyrtime.age;stat.minintnullableB_Age? Maximum stellar ageMyrtime.age;stat.maxintnullableRemarksRemarksmeta.notecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/573/A126/table8Properties of young moving groups (MGs)MGaAbbreviated moving group namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMGMoving group namemeta.id;meta.mainr_UvelVelocity reference (1)meta.ref;pos.framecharUvelU velocitykm/sphys.veloc;pos.cartesian.xfloate_Uvelrms uncertainty on Uvelkm/sstat.errorfloatVvelV velocitykm/sphys.veloc;pos.cartesian.yfloate_Vvelrms uncertainty on Vvelkm/sstat.errorfloatWvelW velocitykm/sphys.veloc;pos.cartesian.zfloate_Wvelrms uncertainty on Wvelkm/sstat.errorfloatr_AgeBest age reference (1)meta.ref;pos.framecharAgeBest ageGyrtime.age;meta.modelledintb_AgeMinimum ageGyrtime.age;stat.minintB_AgeMaximum ageGyrtime.age;stat.maxintNmembNumber of members in the NaCo-LP sample (wide companions not observed with NaCo are not included)meta.numbercharJ/A+A/573/A126/table1Measured parameters of NACO-LP targets on FEROS spectraName1Target namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_Name1[abAB] Multiplicity index on Name1meta.code.multipcharHJD? Heliocentric radial date (HJD-2450000)dtime.epochdoublenullablel_HRV[~] Limit flag on HRVmeta.code.errorcharHRV? Heliocentirc radial velocitykm/sspect.dopplerVelocfloatnullablee_HRV? rms uncertainty on HRVkm/sstat.errorfloatnullablevsini? Rotational velocitykm/sphys.veloc.rotatfloatnullablee_vsini? rms uncertainty on vsinikm/sstat.error;phys.veloc.rotatfloatnullablen_vsiniNote on vsinimeta.notecharTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? rms uncertainty on TefKstat.error;phys.temperature.effectiveintnullableEWLi? Lithium equivalent width (m{AA})0.1pmspect.line.eqWidthfloatnullableSindex? Mount Wilson activity S-indexspect.indexfloatnullablelogRHK? Stellar activity HK indexphot.flux;arith.ratiofloatnullableRemRemarksmeta.notecharJ/A+A/573/A126/table7Spectroscopic and astrometric binaries in the NaCo-LP sampleName1Target namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStatusConfirmed or suspected SBmeta.codecharRemRemarks (1)meta.notecharJ/A+A/573/A126/tabled1Details of photometric analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName1Star namemeta.id;meta.maincharHJD.begFirst HJD-2450000 of each time segmentdtime.epochdoubleHJD.endLast HJD-2450000 of each time segmentdtime.epochdoubleNmeas[14/7416] Number of magnitude measurementsmeta.numberintVminBrightest magnitudemagphot.mag;em.opt.VfloatVamp[0/0.33] Light curve amplitude {Delta}Vmagsrc.var.amplitudefloatsigma[0.01/0.26] Photometric accuracy {sigma}magmeta.code.qualfloatr/aRatio fit residuals / light curve amplitudephot.mag;arith.ratiofloatProt[0.2/44]? Rotation perioddtime.periodfloatnullablee_Prot? Uncertainty on rotation perioddstat.errorfloatnullablePower[3/464]? Normalized power of periodogram peakstat.fit.goodnessfloatnullablePowFAP1[3/12]? Power level corresponding to 1% FAP (False Alarm Probability)stat.fit.goodnessfloatnullableseas[1/10] Sequential number of time series segment (seas=1 indicates the complete series)meta.recordintsourceSource: ASAS or SW=SUPER-WASPmeta.idcharJ/A+A/573/A126/table2Measurements of spectroscopic parameters from CORALIE RV surveyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName1Target name 1meta.id;meta.maincharName2Target name 2meta.idcharN[3/10]? Number of observationsmeta.numberintnullableRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablevsini? Rotational velocitykm/sphys.veloc.rotatfloatnullablelogRHKStellar activity HK indexphot.flux;arith.ratiofloatRemRemarksmeta.notecharJ/A+A/573/A126/table3Measurements of spectroscopic parameters from dedicated CORALIE observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName1Target name 1meta.id;meta.maincharJDJulian date of observation (JD-2450000)dtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloatFWHM? FWHMkm/sspect.line.widthfloatnullableS/N[14/108] Signal-to-noise ratiostat.snrintRemRemarksmeta.notecharJ/A+A/573/A126/table4Measurements of spectroscopic parameters from HARPS spectraRemRemarksmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName1Target name 1 (1)meta.id;meta.maincharN[1/77] Number of observationsmeta.numberintJD.beg? Start date (JD-2450000)dtime.epochfloatnullableJD.end? End date (JD-2450000)dtime.epochfloatnullableRVAbsolute radial velcocity obtained with the HARPS pipelinekm/sphys.veloc;pos.heliocentricfloate_RV? RV dispersion of the differential RV obtained with the SAFIR code (2)km/sstat.errorfloatnullablevsini? Rotational velocitykm/sphys.veloc.rotatfloatnullablel_FWHM[~] Limit flag on FWHMmeta.code.error;phys.angSizecharFWHM? FWHMkm/sspect.line.widthfloatnullablelogRHK? Stellar activity HK indexphot.flux;arith.ratiofloatnullableEWLi? Lithium equivalent width (m{AA})0.1pmspect.line.eqWidthintnullableTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? rms uncertainty on TeffKstat.error;phys.temperature.effectiveintnullableJ/A+A/573/A126/table5Close visual binaries discovered or confirmed by NaCo-LP AO observationsName1Target namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSepProjected separation measured with NaCo in mas (1)maspos.angDistanceinte_Seprms uncertainty on Sepmasstat.errorintSepAUProjected separation measured with NaCo in AU (1)AUpos.angDistancefloatDHmagMagnitude difference in H bandmagphot.mag;arith.difffloate_DHmagrms uncertainty on DHmagmagstat.error;phot.magfloatJ/A+A/573/A126/table6Wide binaries in the NaCo-LP samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName1Name of the star observed with NaCometa.id;meta.maincharCompName of wide companionmeta.id.assoccharSepProjected separation in arcsecarcsecpos.distance;src.orbitalfloatSepAUProjected separation in AUAUpos.angDistanceintpmAerage proper motion of the componentsmas/yrpos.pmfloatDpmProper motion differencemas/yrpos.pm;arith.difffloatDVmagMagnitude difference in V bandmagphot.mag;arith.difffloatfTpmFractional proper motion differencepos.pm;arith.difffloatDXStatistic {Delta}X indexstat.fit.paramfloat|DRV|? Absolute value of the RV differencekm/sstat.value;arith.difffloatnullableNcompNumber of componentsmeta.numbercharNote[*] * indicates an individual note (1)meta.notechar