J/ApJS/181/62ivo://CDS.VizieR/J/ApJS/181/62doi:10.26093/cds/vizier.21810062CDSMetchev S.A.Hillenbrand L.A.2017-06-20T13:16:05Z2009-11-21T14:24:58ZCDS support team

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

cds-question@unistra.frmultiple-starsstellar-massesproper-motionsinfrared-photometryWe present results from an adaptive optics survey for substellar and stellar companions to Sun-like stars. The survey targeted 266 F5-K5 stars in the 3Myr-3Gyr age range with distances of 10-190pc. Results from the survey include the discovery of two brown dwarf companions (HD 49197B and HD 203030B), 24 new stellar binaries, and a triple system. We infer that the frequency of 0.012-0.072M_{sun}_ brown dwarfs in 28-1590AU orbits around young solar analogs is 3.2^+3.1^_-2.7_% (2{sigma} limits). The result demonstrates that the deficiency of substellar companions at wide orbital separations from Sun-like stars is less pronounced than in the radial velocity "brown dwarf desert." We infer that the mass distribution of companions in 28-1590AU orbits around solar-mass stars follows a continuous dN/dM_2_{prop.to}M^-0.4^_2_ relation over the 0.01-1.0M_{sun}_ secondary mass range. While this functional form is similar to that for isolated objects less than 0.1M_{sun}_, over the entire 0.01-1.0M_{sun}_ range, the mass functions of companions and of isolated objects differ significantly. Based on this conclusion and on similar results from other direct imaging and radial velocity companion surveys in the literature, we argue that the companion mass function follows the same universal form over the entire range between 0 and 1590AU in orbital semimajor axis and ~0.01-20M_{sun}_ in companion mass. In this context, the relative dearth of substellar versus stellar secondaries at all orbital separations arises naturally from the inferred form of the companion mass function.2009ApJS..181...62Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/181/62CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2009)J/A+A/356/141 : BV photometry for components of HIP doubles (Fabricius+ 2000)J/A+A/341/121 : Visual binary orbits and masses (Soederhjelm 1999)J/A+A/323/139 : K magnitude of Pleiades low-mass binaries (Bouvier+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/181/62https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/181/62http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/181/62https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/181/62https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/181/62http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/181/62GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/181/62/samples (Deep and shallow samples of young solar neighbours)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/181/62/samples?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/181/62/samples?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/181/62/samples?GETtext/xml+votable180.050000true2.107256.61680560.0055555555555555565/118 6/49 75 201 217 272 308 350 358 380 461 462 463 496 508 674 701 712 781 861 873 917 999 1005 1165 1234 1601 1675 1770 1771 1774 1873 2072 2299 2317 2366 2574 2651 2816 3092 3094 3095 3101 3109 3136 3137 3141 3925 4128 4225 4591 5095 5108 5476 5872 5895 5924 6051 6269 6420 6522 6766 6932 7196 7240 7763 7803 7804 8591 8881 9492 9883 10179 10334 10914 11128 11225 11226 11510 11640 11734 11856 11946 12092 12146 12228 12270 12341 12343 12676 12792 12922 13106 13122 13164 13671 13802 13946 14140 14208 14416 14814 14904 15007 15014 15887 16164 16930 17274 17541 17552 18425 18623 19097 19350 19509 20166 20174 20327 20332 20476 20716 21082 21118 21386 21772 21838 21956 22146 22541 22764 22878 23096 23198 23233 23262 23302 23395 23429 23497 23503 23511 23513 23515 23518 23533 23537 23539 23542 23544 23545 23546 23548 23550 23743 23895 24102 24107 24110 24192 24318 24729 24731 25070 25192 25224 25297 25405 25521 26731 27018 27395 27750 27756 27872 28041 28101 28244 28395 28510 29978 30540 30793 30837 31104 31132 31449 31667 32147 32211 32431 32516 32617 36057 36158 36248 36487 36664 36713 36746 40101 40264 40739 40784 42932 42990 43004 44226 44228 44297 44299 44316 44317 44356 44360 44362 44379 44388 44389 44397 44400 44402 48105 48230 48394 48651 489057.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/181/62?format=asciiInfrareddefaultJ/ApJS/181/62/samplesDeep and shallow samples of young solar neighboursSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_NameSimbad column added by the CDSmeta.idcharNameStar name (G1)meta.id;meta.maincharprimarycSimbad column added by the CDSmeta.code.multipcharpmRAProper motion in Right Ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAUncertainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in Declinationmas/yrpos.pm;pos.eq.decfloate_pmDEUncertainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatDistHeliocentric distancepcpos.distancefloate_DistUncertainty in Distpcstat.errorfloatKsmagThe K_S_ band magnitudemagphot.mag;em.IR.KfloatSpTypeAdopted spectral typesrc.spTypecharAssocName of associationmeta.id.parentlogALog of the estimated agelog(yr)time.agefloatMassEstimated mass (1)solMassphys.massfloatRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainJ/ApJS/181/62/compCandidate companionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePrimary star name (G1)meta.id;meta.maincharm_NameCompanion numbermeta.code.multipintrhoAngular separationarcsecpos.angDistancefloate_rhoUncertainty in rhoarcsecstat.errorfloatPAPosition angledegpos.posAngfloate_PAUncertainty in PAdegstat.errorfloatDelKPrimary/Companion K_S_ band magnitude differencemagphot.mag;arith.difffloate_DelKUncertainty in DelKmagstat.errorfloatKsmagThe K_S_ band magnitudemagphot.mag;em.IR.Kfloate_KsmagUncertainty in Ksmagmagstat.error;phot.mag;em.IR.KfloatJ-Ks? The (J-K_S_) color (1)magphot.color;em.IR.J;em.IR.Kfloatnullablee_J-Ks? Uncertainty in J-Ksmagstat.error;phot.color;em.IR.JfloatnullableDateDate candidate companion discoveredtime.epochnullableTel[PK] Telescope used at discovery (2)instr.setupcharphysPhysical association of candidate companion with primary (3)meta.notecharf_phys[d] Flag for ScoPMS 214 (4)meta.codecharRefReference if companion was already known. See refs.dat filemeta.ref;pos.framecharJ/ApJS/181/62/observObservations and sensitivity limitsNameStar name (G1)meta.id;meta.maincharObsObservatorymeta.id;instr.obstycharOpticOptic code (1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observationtime.epochnullable0.5Ksmag? Limiting K_S_ band magnitude at 0.5" (2)maginstr.sensitivityfloatnullable1Ksmag? Limiting K_S_ band magnitude at 1" (2)maginstr.sensitivityfloatnullable2Ksmag? Limiting K_S_ band magnitude at 2" (2)maginstr.sensitivityfloatnullable5Ksmag? Limiting K_S_ band magnitude at 5" (2)maginstr.sensitivityfloatnullableJ/ApJS/181/62/table11New and confirmed secondariesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePrimary name (G1)meta.id;meta.maincharm_Name[BC] Suffix for companionmeta.code.multipcharKMAGAbsolute K_S_ band magnitudemagphys.magAbsfloate_KMAGUncertainty in KMAGmagstat.errorfloatASepProjected angular separationarcsecpos.angDistancefloatPSepProjected physical separationAUpos.angDistancefloatM2Secondary masssolMassphys.massfloatqMass ratiophys.massfloatf_q[d] Flag on q (1)meta.codecharSampleSample (2)src.samplecharRefReference in refs.dat filemeta.ref;pos.frame;meta.filecharJ/ApJS/181/62/refsReferences for tables 8,9, 11RefReference codemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAutAuthor's name(s)meta.bib.authorcharBibCodeBibcodemeta.bib.bibcodecharComCommentmeta.notechar