J/MNRAS/449/2618ivo://CDS.VizieR/J/MNRAS/449/2618doi:10.26093/cds/vizier.74492618CDSWard-Duong K.Patience J.De Rosa R.J.Bulger J.Rajan A.,Goodwin S.P.Parker R.J.McCarthy D.W.Kulesa C.2024-08-14T20:21:02Z2016-01-13T09:46:30ZCDS support team

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

cds-question@unistra.frdwarf-starsm-starsmultiple-starsWe present a large-scale, volume-limited companion survey of 245 late-K to mid-M (K7-M6) dwarfs within 15pc. Infrared adaptive optics (AO) data were analysed from the Very Large Telescope, Subaru Telescope, Canada-France-Hawaii Telescope, and MMT Observatory to detect close companions to the sample from ~1 to 100AU, while digitized wide-field archival plates were searched for wide companions from ~100 to 10000AU. With sensitivity to the bottom of the main sequence over a separation range of 3 to 10000AU, multiple AO and wide-field epochs allow us to confirm candidates with common proper motions, minimize background contamination, and enable a measurement of comprehensive binary statistics. We detected 65 comoving stellar companions and find a companion star fraction of 23.5+/-3.2 percent over the 3 au to 10000AU separation range. The companion separation distribution is observed to rise to a higher frequency at smaller separations, peaking at closer separations than measured for more massive primaries. The mass ratio distribution across the q=0.2-1.0 range is flat, similar to that of multiple systems with solar-type primaries. The characterization of binary and multiple star frequency for low-mass field stars can provide crucial comparisons with star-forming environments and hold implications for the frequency and evolutionary histories of their associated discs and planets.2015MNRAS.449.2618Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/449/2618CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/449/2618https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/449/2618http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/449/2618https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/449/2618https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/449/2618http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/449/2618GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/449/2618/table1 (The 245 K7-M6 dwarf sample within 15 pc)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/449/2618/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/449/2618/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/449/2618/table1?GETtext/xml+votable180.050000true1.2953680645.786566940.0055555555555555566/497 624 811 1212 1875 1896 1911 2515 2737 2747 3280 3345 3591 3715 3751 3791 4033 4250 4366 4595 4708 4775 5420 5488 5534 5676 6277 6384 6552 6672 6726 6736 7003 7132 7471 7512 7611 7736 7772 7837 8023 8123 8208 8355 8440 8627 8733 8996 9529 9578 9585 9597 9629 9696 10027 10149 10225 10448 10467 10683 11034 11276 11636 11671 11862 11919 11943 12128 12621 12679 12795 13065 13427 13451 13743 14266 14277 14456 14709 14850 15311 15602 15960 16391 16758 16827 17058 17870 18195 18496 18553 18666 18789 19064 19306 19352 19466 19931 20023 20071 20100 20683 20690 20896 21136 21149 21151 21171 21747-21748 21953 22148 22277 22289 22309 22626 22807 23363 23660 23718-23719 23735 23867 24213 24227 24713 24995 25009 25125 25528 25849 25989 26538 26555 26560 26583 26757 26772 26972 27201 27204 27289 27392 27459 27730 27912 28341 28548 28646 28955 29158 29684 30327 30429 30505 30626 30771 30833 30893 31011 31191 31229 31781 32115 32335 32458 32491 32500 33425 33545 33693 33937 33966 34181 34437 35150 35288 35324-35325 35670 35759 36483 36511 37379 37654 37942 38247 38456 38551 38672 38756 39059 39499 40197 40250 40430 40436 40610 40811 41591 41888 42054 42093 42255 42290 42314 42652 42784 43187 43580 44379 44437 44728 44921 44936-44937 45317 45322 45419 45543 45878 46566 46619 46632 46752 47165 47337 47414 47953 48263 48274 48303 48906 48926 48985 491018.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/449/2618?format=asciidefaultJ/MNRAS/449/2618/table1The 245 K7-M6 dwarf sample within 15 pcHIPHIP numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainpmRAProper motion along RAmas/yrpos.pm;pos.eq.rafloatpmDEProper motion along DEmas/yrpos.pm;pos.eq.decfloatVmagV magnitudemagphot.mag;em.opt.VfloatJmag2MASS J magnitudemagphot.mag;em.IR.Jfloate_Jmagrms uncertainty on Jmagmagstat.error;phot.mag;em.IR.JfloatHmag2MASS H magnitudemagphot.mag;em.IR.Hfloate_Hmagrms uncertainty on Hmagmagstat.error;phot.mag;em.IR.HfloatKsmag2MASS Ks magnitudemagphot.mag;em.IR.Kfloate_Ksmagrms uncertainty on Ksmagmagstat.error;phot.mag;em.IR.KfloatplxHIP parallaxmaspos.parallax.trigfloate_plxrms uncertainty on plxmasstat.error;pos.parallaxfloatDistDistancepcpos.distance;pos.heliocentricfloate_Distrms uncertainty on Distpcstat.errorfloatSpTypeMK spectral typesrc.spTypecharr_SpType[a-f] Reference for SpType (1)meta.ref;pos.framechar[Fe/H]? Metallicityphys.abund.Zfloatnullabler_[Fe/H][1/4]? Reference for [Fe/H] (2)meta.refintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/449/2618/table2High-resolution imaging dataInstInstrumentmeta.id;instrcharFiltFiltermeta.id;instr.filterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHIP numbermeta.id;meta.mainintTelTelescopemeta.id;instr.telcharExpTimeExposure timestime.duration;obs.exposurefloatProgProgramme IDmeta.id;obscharPIPI nameobs.observercharn_PI[a] a: Observatory technical timemeta.notecharDateUT datetime.epochnullableJ/MNRAS/449/2618/table4Confirmed companions - measured and derived propertiesEp[1/2] Epoch numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPJIP numbermeta.id;meta.mainintm_HIPWDS catalogue component designationmeta.code.multipcharf_HIP[*] * for new companionmeta.codecharn_HIP[bcdef] Note on WDS component designation (1)meta.notecharDateUT date of observationtime.epoch;obsnullablerhoAngular separationarcsecpos.angDistancefloate_rhorms uncertainty on rhoarcsecstat.errorfloataprojProjected radiusAUpos.distancefloatE_aprojError on aproj (upper value)AUstat.error;stat.maxfloate_aprojError on aproj (lower value)AUstat.errorfloatthetaPosition angledegpos.posAngfloate_thetarms uncertainty on thetadegstat.error;pos.posAngfloatDeltamMagnitude differencemagphot.mag;arith.difffloatFiltBroad-band filter namemeta.id;instr.filtercharMprimMass of the primarysolMassphys.massfloatMsecMass of the secondarysolMassphys.massfloatJ/MNRAS/449/2618/tablea1Companion detection limitsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHIP numbermeta.id;meta.mainintAODm0.05? Adaptative optic (AO) {delta}m at rho=0.05arcsecmagphot.mag;arith.difffloatnullableAODm0.15? Adaptative optic (AO) {delta}m at rho=0.15arcsecmagphot.mag;arith.difffloatnullableAODm0.25? Adaptative optic (AO) {delta}m at rho=0.25arcsecmagphot.mag;arith.difffloatnullableAODm0.50? Adaptative optic (AO) {delta}m at rho=0.50arcsecmagphot.mag;arith.difffloatnullableAODm1.00? Adaptative optic (AO) {delta}m at rho=1.00arcsecmagphot.mag;arith.difffloatnullableAODm1.50? Adaptative optic (AO) {delta}m at rho=1.50arcsecmagphot.mag;arith.difffloatnullableAODm2.00? Adaptative optic (AO) {delta}m at rho=2.00arcsecmagphot.mag;arith.difffloatnullableAODm5.00? Adaptative optic (AO) {delta}m at rho=5.00arcsecmagphot.mag;arith.difffloatnullableAODm10.00? Adaptative optic (AO) {delta}m at rho=10.00arcsecmagphot.mag;arith.difffloatnullablerhoAOmax? Maximum AO rho value sensitive to full M5arcsecpos.angDistance;src.orbitalfloatnullablerhoplateminMinimum plate rho value sensitive to full M5arcsecpos.angDistance;src.orbitalfloatrhoplatemaxMaximum plate rho value sensitive to full M5arcsecpos.angDistance;src.orbitalfloat