J/MNRAS/318/1206ivo://CDS.VizieR/J/MNRAS/318/1206doi:10.26093/cds/vizier.73181206CDSCooke J.A.Neill Reid I.2024-06-27T07:10:43Z2007-12-28T15:48:14ZCDS support team

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

cds-question@unistra.frproper-motionsdwarf-starssubdwarf-starsinfrared-photometryvisible-astronomybroad-band-photometryWe have applied the astrometric techniques devised by Murray (1986MNRAS.223..649M) for analysis of 48-inch Schmidt photographic data to SuperCOSMOS scans of UK Schmidt plates centred on Kapteyn's Selected Area 94 (RA=2h53m, DE=0{deg}). In this preliminary study, we combine astrometric data from four short-exposure V-band plates, taken in 1987 August (2 plates) and 1993 August (2 plates), with BVRI photometry from sky-limited plate material, to identify stars with proper motions exceeding 0.1"/yr. This paper discusses the completeness of the resulting sample and presents spectroscopy of 30 stars with {mu}>0.2"/yr. Based on the latter observations and the distribution in the [H_V_, (V-I)] reduced proper-motion diagram, we have classified stars in the complete sample as candidate white dwarfs, main-sequence dwarfs and halo subdwarfs, and derived estimates of the disc and halo luminosity functions.2000MNRAS.318.1206Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/318/1206CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/98 : NLTT Catalogue (Luyten, 1979)I/87 : LHS Catalogue, 2nd Edition (Luyten 1979)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/318/1206https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/318/1206http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/318/1206https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/318/1206https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/318/1206http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/318/1206GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/318/1206/table2 (SA94 proper-motion stars, {mu}>0.1arcsec/yr)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/318/1206/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/318/1206/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/318/1206/table2?GETtext/xml+votable180.050000true43.1858331.9322220.0055555555555555565/2 4436-4437 4439 4445 9215 6/0 2-3 6 32 17733-17735 17741 17752-17753 17755 17777 36847 36857-36859https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/318/1206?format=asciiOpticalInfrareddefaultJ/MNRAS/318/1206/table2SA94 proper-motion stars, {mu}>0.1arcsec/yrONameOther name (2)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[CR2000b]Sequential numbermeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmag? V magnitudemagphot.mag;em.opt.VfloatnullableB-V? B-V colour indexmagphot.color;em.opt.B;em.opt.VfloatnullableV-I? V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatnullablepmRAProper motion in right ascensionarcsec/yrpos.pm;pos.eq.rafloatpmDEProper motion in declinationarcsec/yrpos.pm;pos.eq.decfloatpmTotal proper motionarcsec/yrpos.pmfloatHV? Hertzsprung parameter (1)magphys.magAbsfloatnullableCatPresence in other catalogue NLTT: Luyten 1979-1980, Cat. <I/98> LHS: Luyten 1979, Cat. <I/87>meta.codechar