J/A+A/669/A12ivo://CDS.VizieR/J/A+A/669/A12doi:10.26093/cds/vizier.36690012CDSGrandjean A.Larange A.-M.Meunier N.Chauvin G.Borgniet S.,Desidera S.Galland F.Kiefer F.Messina S.Iglesias D.Nicholson B.,Pantoja B.Rubini P.Sedaghati E.Sterzik M.Zicher N.2024-11-06T20:02:05Z2022-12-23T07:58:25ZCDS support team

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

cds-question@unistra.frsurveysearly-type-starslate-type-starsradial-velocityvisible-astronomyThe Scorpius-Centaurus (Sco-Cen) young and nearby massive star-forming region is particularly well suited for extrasolar planet searches with both direct imaging and radial velocity (RV) techniques. The RV search, however, is challenging, as the stars are faster rotators on average than their older stellar counterparts of similar spectral types. Moreover, the RV time series show strong signatures of stellar variability (spots and faculae) and/or stellar pulsations. Our aim is to search for giant planets (GPs) and brown dwarfs at short orbital distances around star members of the Sco-Cen association. We also aim at using these data together with others available on young stars to estimate the GP occurrence rate for young stars for periods of up to 1000 days. We used the HARPS spectrograph on the 3.6m telescope at the La Silla Observatory to monitor 88 A-F Sco-Cen stars. To improve our statistics and analysis, we combined this survey with two previous surveys that focused on young nearby stars (YNS) to compute companion occurrence rates from a sample of 176 young A-M stars. We report the discovery of a massive hot-Jupiter candidate around HD 145467, together with the discovery of one probable short-period (P<10-days) brown dwarf around HD 149790. In addition, we confirm the binary nature of eight single-line binaries: HD 108857, HD 108904, HD 111102, HD 114319, HD 121176, HD 126488, HD 126838, and HD 133574. From our sample, we obtain a GP (1<mc<13M_Jup_) occurrence rate of 0.7^+1.6^_0.2_% for periods between 1 and 1000 days and a brown dwarf (13<mc<80M_Jup_) occurrence rate of 0.6^+1.4^_0.2_%, in the same period range. In addition, we report a possible lack of close (1<P<1000]days) GPs around young F-K stars compared to their older counterparts, with a confidence level of 95%.2023A&A...669A..12Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/669/A12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/633/A44 : HARPS Young Nearby Stars - YNS (Grandjean+, 2020)J/A+A/650/A39 : SOPHIE and HARPS Young Nearby Stars - YNS (Grandjean+ 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/669/A12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/669/A12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/669/A12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/669/A12https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/669/A12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/669/A12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/669/A12/sample1 (HARPS Sco-Cen list of targets and positions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/669/A12/sample1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/669/A12/sample1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/669/A12/sample1?GETtext/xml+votable180.050000true164.262589444-68.6673469440.005555555555555556Cone search capability for table J/A+A/669/A12/sample2 (SOPHIE YNS list of targets and positions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/669/A12/sample2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/669/A12/sample2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/669/A12/sample2?GETtext/xml+votable180.050000true2.1072733336.6168022220.005555555555555556Cone search capability for table J/A+A/669/A12/sample3 (HARPS YNS list of targets and positions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/669/A12/sample3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/669/A12/sample3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/669/A12/sample3?GETtext/xml+votable180.050000true1.468937222-41.7530683330.0055555555555555566/46 940 2366 3383 4190 4438 4444 5088 6217 6670 8357 8790 10238 11145 11165 11176 11547 11910 12478 12592 13802 14252 16220 16393 16543 16853 16930 17274 17288 17541 17552 17607 17752 18210 18802 19509 19547 20125 21748 21953 22146 22773 23137 23140 23155 23230 23342 23731 23774 23895 24117 24151 24221 24239 24633 25015 25199 25793 26521 27374 27392 27395 27462 27884 27909 28041 28197 28341 28737 29348 30419 30484 30539 31104 31399 31449 32147 32617 33312 33598 33850 34054 34074 34245 34342 34436 34683 34825 34829 35497 36664 36713 37175 37197 37419 37616 37978 38151 38765 38936 38950 39044 39693 39735 40717 40784 40811 41607 41652 41657 41661 41677 41704 41710 41906 42072 42147 42174 42466 42559 42563 42601 42613 42678 42697 42707 42711 42754 42857 42910 42917 42941 42953 42960 43002 43021 43029 43037 43055 43059 43130 43133 43150 43161 43165 43169 43197 43201 43224 43232 43244 43274 43298 43358 43360-43361 43415 43435 43468 43523 43529 43555 43558 44052 44059 44088 44106 44132 44139 44352 44356 44359 44368 44393 45247 45538 45621 45746 45927 46383 46566 46923 46939 47101 47205 47287 47299 47598 47626 47910 48163 48274 48627 48651https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/669/A12?format=asciiOpticaldefaultJ/A+A/669/A12/sample1HARPS Sco-Cen list of targets and positionsSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/A+A/669/A12/tablea1Stellar characteristics of the HARPS Sco-Cen surveypmDEproper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEProper motion in declination errormas/yrstat.error;pos.pm;pos.eq.decfloatr_plxParalax and proper motion sourcemeta.ref;pos.framecharMassStellar masssolMassphys.massfloate_Mass? Mass negative errorsolMassstat.error;phys.massfloatnullableE_Mass? Mass positive errorsolMassstat.error;stat.maxfloatnullabler_MassLink to the Mass referencemeta.refcharE_Age? Age positive errorMyrstat.error;stat.maxintnullabler_AgeLink to the age referencemeta.ref;pos.framecharvsiniRotational velocitykm/sphys.veloc.rotatfloatIR[yn-] IR excess flag (2)meta.codecharr_IRLink to the IR excess referencemeta.ref;pos.framecharD[yn-] Imaged disc flag (3)meta.codecharr_DLink to the disc referencemeta.ref;pos.framecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (HD/PDS)meta.id;meta.maincharHIP? Hipparcos numbermeta.idintnullableInc[Y/N] Inclusion flag (1)meta.codecharSpTypeSpectral typesrc.spTypecharB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatplxAbsolute paralaxmaspos.parallax.trigfloate_plxStandard paralax errormasstat.error;pos.parallaxfloatAgeAgeMyrtime.ageintpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAProper motion in right ascension errormas/yrstat.error;pos.pm;pos.eq.rafloate_Age? Age negative errorMyrstat.error;time.ageintnullableJ/A+A/669/A12/tablea2Results of the HARPS Sco-Cen surveyBVSrmsBisector velocity span rmsm/sstat.stdev;phys.velocfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (HD/PDS)meta.id;meta.maincharHIP? Hipparcos numbermeta.idintnullableInc[Y/N] Inclusion flag (1)meta.codecharSpTypeSpectral typesrc.spTypecharTBLTime baselinedtime.intervalintNmTotal number of computed spectrameta.numberintRVARV amplitudem/ssrc.var.amplitudefloatRVrmsRV rmsm/sstat.stdev;phys.velocfloate_RVmeanRV mean uncertaintym/sstat.errorfloatBVSBisector velocity spanm/sphys.velocfloate_BVSmeanBisector velocity span mean uncertaintym/sstat.errorfloatRV-BVS-corr? RV-BVS correlation factorstat.correlationfloatnullableFWHMmeanMean FWHMkm/sphys.angSizefloatlogR'HKmeanMean logR'HKphot.flux;arith.ratiofloats_logR'HKlogR'HK uncertainty standard deviationstat.errorfloatV[APT] Source of stellar Jitter (2)meta.bibcharTPresence of a long-term trendmeta.codecharBNature of the companion (3)meta.codecharJ/A+A/669/A12/sample2SOPHIE YNS list of targets and positionsDEJ2000Declination (J2000)pos.eq.dec;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainJ/A+A/669/A12/tablea3Stellar characteristics of the SOPHIE YNS surveyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (HD/BD/CD)meta.id;meta.maincharHIP? Hipparcos numbermeta.idintnullableInc[Y/N] Inclusion flag (1)meta.codecharSpTypeSpectral typesrc.spTypecharB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatMassStellar mass found in literaturesolMassphys.massfloate_Mass? Mass negative errorsolMassstat.error;phys.massfloatnullableE_Mass? Mass positive errorsolMassstat.error;stat.maxfloatnullabler_MassLink to the Mass referencemeta.refcharAge? Age found in literatureMyrtime.ageintnullablee_Age? Age negative errorMyrstat.error;time.ageintnullableE_Age? Age positive errorMyrstat.error;stat.maxintnullabler_AgeLink to the age referencemeta.ref;pos.framecharvsiniRotational velocitykm/sphys.veloc.rotatfloatIR[yn-] IR excess flag (2)meta.codecharr_IRLink to the IR excess referencemeta.ref;pos.framecharD[yn-] Imaged disc flag (3)meta.codecharr_DLink to the disc referencemeta.ref;pos.framecharJ/A+A/669/A12/tablea4Results of the SOPHIE YNS surveyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (HD/BD/CD)meta.id;meta.maincharHIP? Hipparcos numbermeta.idintnullableInc[Y/N] Inclusion flag (1)meta.codecharSpTypeSpectral typesrc.spTypecharTBLTime baselinedtime.intervalintNmTotal number of computed spectrameta.numberintRVARV amplitudem/ssrc.var.amplitudefloatRVrmsRV rmsm/sstat.stdev;phys.velocfloate_RVmeanRV mean uncertaintym/sstat.errorfloatBVS? Bisector velocity spanm/sphys.velocdoublenullableBVSrms? Bisector velocity span rmsm/sstat.stdev;phys.velocfloatnullableRV-BVS-corr? RV-BVS correlation factorstat.correlationfloatnullableFWHMmeanMean FWHMkm/sphys.angSizefloatlogR'HKmean? Mean logR'HKphot.flux;arith.ratiofloatnullables_logR'HK? logR'HK uncertainty standard deviationstat.errorfloatnullablee_BVSmean? Bisector velocity span mean uncertaintym/sstat.errordoublenullableV[AP-] Source of stellar Jitter (2)meta.bibcharTPresence of a long-term trendmeta.codecharBNature of the companion (3)meta.codecharC-sourceLink to the companion reference if anymeta.bibcharJ/A+A/669/A12/sample3HARPS YNS list of targets and positionsSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/A+A/669/A12/tablea5Stellar characteristics of the HARPS YNS surveyr_AgeLink to the age referencemeta.ref;pos.framecharvsiniRotational velocitykm/sphys.veloc.rotatfloatProt? Rotation period found in literaturedtime.periodfloatnullablee_Prot? Rotation period uncertaintydstat.errorfloatnullabler_Prot? Rotation period referencemeta.ref;pos.framecharIR[yn-] IR excess flag (2)meta.codecharr_IRLink to the IR excess referencemeta.ref;pos.framecharDImaged disc flag (3)meta.codecharr_DLink to the disc referencemeta.ref;pos.framecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (HD/BD/CD)meta.id;meta.maincharHIP? Hipparcos numbermeta.idintnullableInc[Y/N] Inclusion flag (1)meta.codecharSpTypeSpectral typesrc.spTypecharB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatMassStellar mass found in literaturesolMassphys.massfloate_Mass? Mass negative errorsolMassstat.error;phys.massfloatnullableE_Mass? Mass positive errorsolMassstat.error;stat.maxfloatnullabler_MassLink to the Mass referencemeta.refcharAgeAge found in literatureMyrtime.ageinte_Age? Age negative errorMyrstat.error;time.ageintnullableE_Age? Age positive errorMyrstat.error;stat.maxintnullableJ/A+A/669/A12/tablea6Results of the HARPS YNS surveyC-sourceLink to the companion reference if anymeta.bibcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (HD/BD/CD)meta.id;meta.maincharHIP? Hipparcos numbermeta.idintnullableInc[Y/N] Inclusion flag (1)meta.codecharSpTypeSpectral typesrc.spTypecharTBLTime baselinedtime.intervalintNmTotal number of computed spectrameta.numberintRVARV amplitudem/ssrc.var.amplitudefloatRVrmsRV rmsm/sstat.stdev;phys.velocfloate_RVmeanRV mean uncertaintym/sstat.errorfloatBVS? Bisector velocity spanm/sphys.velocdoublenullableBVSrms? Bisector velocity span rmsm/sstat.stdev;phys.velocfloatnullablee_BVSmean? Bisector velocity span mean uncertaintym/sstat.errorfloatnullableRV-BVS-corr? RV-BVS correlation factorstat.correlationfloatnullableFWHMmean? Mean FWHMkm/sphys.angSizefloatnullablelogR'HKmean? Mean logR'HKphot.flux;arith.ratiofloatnullables_logR'HK? logR'HK uncertainty standard deviationstat.errorfloatnullableV[AP-] Source of stellar Jitter (2)meta.bibcharTPresence of a long-term trendmeta.codecharBNature of the companion (3)meta.codechar