J/AJ/133/971ivo://CDS.VizieR/J/AJ/133/971doi:10.26093/cds/vizier.51330971CDSAllen P.R.Koerner D.W.McElwain M.W.Cruz K.L.Reid I.N.2017-12-15T10:54:47Z2009-11-17T10:07:09ZCDS support team

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

cds-question@unistra.frmultiple-starsdwarf-starsWe present the results of a deep-imaging search for wide companions to low-mass stars and brown dwarfs using NSFCam on the Infrared Telescope Facility. We searched a sample of 132 M7-L8 dwarfs to magnitude limits of J~20.5 and K~18.5, corresponding to secondary-to-primary mass ratios of ~0.5. No companions were found with separations between 2" and 31" (~40 to ~1000AU). This null result implies a wide companion frequency below 2.3% at the 95% confidence level within the sensitivity limits of the survey. Preliminary modeling efforts indicate that we could have detected 85% of companions more massive than 0.05M_{sun}_ and 50% above 0.03M_{sun}_.2007AJ....133..971Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/133/971CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/476/311 : 2MASS M-dwarf discoveries (Kirkpatrick+ 1997)J/AJ/123/3409 : SDSS M, L, and T dwarfs (Hawley+, 2002)J/AJ/126/2421 : 2MASS-Selected sample of ultracool dwarfs (Cruz+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/133/971https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/133/971http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/133/971https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/133/971https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/133/971http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/133/971GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/133/971/table1 (IRTF and WIYN Observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/133/971/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/133/971/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/133/971/table1?GETtext/xml+votable180.050000true2.635416717.26363890.0055555555555555566/222 360 369 439 464 544 734 743 763 826 858 909 2101 2202 4486 4536 4539 4630 4645 4719 4775 4875 5002 5147 5413 5481 5634 5666 6223 6255 6298 6597 6625 6783 8402 8473 8522 8625 8735 8761 8781 8808 8995 9113 9124 9293 9387 9449 9569 9588 9628 9643 9677 9779 10110 10243 10291 10332 10400 10555 10657 10665 10813 11164 11273 11596 11661 11856 12519 12537 12570 12600 13336 13455 14850 16850 16873 17594 18375 18428 18683 18711 18726 19402 19680 19733 19755 19813 19857 19872 20069 20141 20357 20436 21835 22391 22861 23111 23193 24925 25132 25266 25470 25558 25946 26196 26282 27618 27635 27648 28006 28055 28126 28277 28316 28427 28450 31144 31324 31396 32284 32456 32457 36253 36265 40375 40901 44929 48390 48462 48723https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/133/971?format=asciiOpticaldefaultJ/AJ/133/971/table1IRTF and WIYN ObservationsNameObject namemeta.id;meta.maincharprimarySpTypeSpectral typesrc.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCSimbad column added by the CDSmeta.ref.urlcharJmagThe IRTF J band magnitudemagphot.mag;em.IR.Jfloate_JmagUncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatKsmagThe IRTF K_s_ band magnitudemagphot.mag;em.IR.Kfloate_KsmagUncertainty in Kmagmagstat.error;phot.mag;em.IR.KfloatDistDistancepcpos.distance;pos.heliocentricfloatf_DistFlag on Dist (1)meta.codecharJlimThe J band limitmagphot.magfloatKlimThe K band limitmagphot.magfloatObsThe IRTF observation date(s)time.epoch;obscharRefReference(s) (2)meta.ref;pos.frameintNote[*] Individual note (3)meta.notecharSimbadNameSimbad column added by the CDSmeta.idchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/AJ/133/971/table2Color-Selected Candidate CompanionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharSpTypePrimary spectral typesrc.spTypecharJMAGSecondary absolute magnitudemagphys.magAbsfloatJ-KSecondary J-K colour indexmagphot.color;em.IR.J;em.IR.KfloatDistDistancepcpos.distance;pos.heliocentricfloatDRAOffset in RA from the primaryarcsecpos.eq.ra;arith.difffloatDDEOffset in DE from the primaryarcsecpos.eq.dec;arith.difffloatNotesNotes (1)meta.notechar