J/ApJ/790/158ivo://CDS.VizieR/J/ApJ/790/158doi:10.26093/cds/vizier.17900158CDSAllen C.Monroy-Rodriguez M.A.2017-09-19T13:16:49Z2017-03-27T14:24:55ZCDS support team

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

cds-question@unistra.frmultiple-starspopulation-ii-starssubdwarf-starshalo-starsWe present an improved catalog of halo wide binaries compiled from an extensive literature search. Most of our binaries stem from the common proper motion binary catalogs by Allen et al. (2000, J/A+A/356/529) and Chaname & Gould (2004ApJ...601..289C), but we have also included binaries from the lists of Ryan (1992AJ....104.1144R) and Zapatero-Osorio & Martin (2004, J/A+A/419/167). All binaries were carefully checked and their distances and systemic radial velocities are included when available. Probable membership to the halo population was tested by means of reduced proper motion diagrams for 251 candidate halo binaries. After eliminating obvious disk binaries, we ended up with 211 probable halo binaries, 150 of which have radial velocities available. We compute galactic orbits for these 150 binaries and calculate the time they spend within the galactic disk. Considering the full sample of 251 candidate halo binaries as well as several subsamples, we find that the distribution of angular separations (or expected major semiaxes) follows a power law f(a) ~ a.^-1^ (Oepik's relation) up to different limits. For the 50 most disk-like binaries, those that spend their entire lives within z = +/-500 pc, this limit is found to be 19,000 AU (0.09 pc), while for the 50 most halo-like binaries, those that spend on average only 18% of their lives within z = +/-500 pc, the limit is 63,000 AU (0.31 pc). In a companion paper, we employ this catalog to establish limits on the masses of the halo massive perturbers (massive compact halo objects).2014ApJ...790..158Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/790/158CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/79 : Lowell Proper Motion Survey 8991 Northern Stars (Giclas 1971)I/98 : NLTT Catalogue (Luyten, 1979)J/A+A/356/529 : Catalogue of wide binaries (Allen+ 2000)J/A+AS/141/491 : Chemical composition of halo and disk stars (Nissen+, 2000)J/MNRAS/325/931 : Metal-poor subdwarfs in the Hipparcos catalog (Reid+, 2001)J/A+A/419/167 : BVRI photometry in metal-poor binariesJ/ApJ/762/26 : Most metal-poor stars. II. 190 Galactic halo starshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/790/158https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/790/158http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/790/158https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/790/158https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/790/158http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/790/158GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/790/158/table1 (Improved Catalog of Candidate Halo Wide Binaries)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/790/158/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/790/158/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/790/158/table1?GETtext/xml+votable180.050000true0.2014583-16.66413890.0055555555555555566/23 79 137 215 232 396 402 407 490 542 763 815 965 984 1073 1510 1521 1603 1642 1694 1724 1860 2070 2736 2753 2771 4018 4519 4526 4714 4839 5108 5109 5154 5226 5278 5447 5686 5765 6226 6339 6492 6563 6662 6876 7061 7211 7238 7828 8093 8235 8371 8484 8911 8917 9096 9114 9178 10726 10745 10764 10886 11569 11951 12168 12405 12473 12793 12899 13075 13301 13584 13807 13830 14419 14553 14587 14850 15009 15541 15590 15954 16455 16536 16619 16696 16803 16889 16955 17017 17136 17164 17258 17302 17496 17546 17642 17928 17966 18003 18025 18377 18548 18557 18611 18615 18618 18663 18749 18765 18944 18973 19022 19026 19088 19097 19192 19284 19342 19411 19414 19660 19727 19934 20103 20204 20252 20310 20402 20409 20441 20558 21145 21221 21249 21484 21806 21926 22162 22179 22263 22420 22708 22714 22836 22886 22903 23213 23366 23576 23978 24167 24249 24775 24784 24942 25093 25252 25567 25780 26440 26522 26736 27018 27099 27355 27456 27767 27858 27944 27973 27981 28003 28098 28099 28223 28421 28459 28465 28882 29640 30023 30123 30131 30219 30236 30780 30939 30974 31011 31397 31447 31760 32295 32679 32684 33185 33378 33552 33971 34079 34519 34660 35564 35774 35835 35923 35969 36074 36104 36139 36644 36679 36729 38229 38238 38434 39500 39730 40271 40755 40788 41861 42662 42967 43321 43797 43946 44491 44816 45017 45391 47505 47589 47981 48088 48237 48713 48752https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/790/158?format=asciidefaultJ/ApJ/790/158/table1Improved Catalog of Candidate Halo Wide BinariesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPrimaryNLTT number of the primary NLTT NNNNNmeta.id;meta.maincharAIDAlternative identification of the primarymeta.idcharSecondaryIdentification of the secondarymeta.idchardDistance to the primarypcpos.distance;src.orbitalintVMagpV-band Absolute magnitude of the primarymagphot.mag;em.opt.VfloatVMags? V-band Absolute magnitude of the secondarymagphot.mag;em.opt.VfloatnullablesProjected angular separation (1)arcsecpos.angDistancefloat<a>Projected angular separation (1)AUpos.distanceintVpec? Peculiar velocity of the binary (2)km/sphys.velocfloatnullableRmax? Apocentric distancekpcpos.distancefloatnullablezmax? Maximum distance from the galactic planepcpos.cartesian.z;pos.galacticintnullablee? 3D eccentricity of the galactic orbitsrc.orbital.eccentricity;pos.galacticfloatnullabletd/t? Fraction spent by the binary within the galactic disktime.epochfloatnullableCatProvenance of the binary (3)meta.bibchar_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.main