J/A+A/510/A27ivo://CDS.VizieR/J/A+A/510/A27doi:10.26093/cds/vizier.35100027CDSBoudreault S.Bailer-Jones C.A.L.Goldman B.Henning T.Caballero J.A.2017-11-10T11:16:35Z2010-09-17T12:34:11ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryDetermination of the mass functions of open clusters of different ages allows us to infer the efficiency with which brown dwarfs are evaporated from clusters to populate the field. In this paper we present the results of a photometric survey to identify low mass and brown dwarf members of the old open cluster Praesepe (age 590^+150^_-120_Myr, distance 190^+6.0^_-5.8_pc) from which we estimate its mass function and compare this with that of other clusters. We performed an optical (Ic-band) and near-infrared (J and Ks-band) photometric survey of Praesepe covering 3.1{deg}^2^. With 5sigma detection limits of Ic=23.4 and J=20.0, our survey is predicted to be sensitive to objects with masses from 0.6 to 0.05M_{sun}.2010A&A...510A..27Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/510/A27CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/109/29 : Very low mass stars in Praesepe (Hambly+, 1995)J/A+A/375/989 : JHK photometry of Praesepe low-mass stars (Bouvier+, 2001)J/MNRAS/342/1241 : Low-mass stars in M45 and M44 (Pinfield+, 2003)J/AJ/132/1517 : Spectroscopy of M dwarfs in Praesepe (Kafka+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/510/A27https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/510/A27http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/510/A27https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/510/A27https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/510/A27http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/510/A27GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/510/A27/table3 (All photometric cluster member candidates of our survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/510/A27/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/510/A27/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/510/A27/table3?GETtext/xml+votable180.050000true130.22337519.68294440.005555555555555556Cone search capability for table J/A+A/510/A27/table4 (Photometric candidates in our survey that are also photometric candidates in previous surveys)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/510/A27/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/510/A27/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/510/A27/table4?GETtext/xml+votable180.050000true130.285416719.90055560.0055555555555555565/1174 6/4687 4720-47211.398457827073138e-19 2.6706780932288093e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/510/A27?format=asciiInfrareddefaultJ/A+A/510/A27/table3All photometric cluster member candidates of our surveyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_SeqSimbad column added by the CDSmeta.ref.urlcharSeq[1/927] Sequential numbermeta.recordintprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainIcmagCousins I magnitude (1)magphot.mag;em.opt.IfloatJmagJohnson J magnitude (1)magphot.mag;em.IR.JfloatKsmagJohnson ks magnitude (1)magphot.mag;em.IR.KfloatMassDerived masssolMassphys.massfloatTeffEffective temperatureKphys.temperature.effectiveintJmagModModel J magnitude (2)magphot.mag;meta.modelledfloatSpTMK spectral type for BD candidates only (3)src.spTypecharJ/A+A/510/A27/table4Photometric candidates in our survey that are also photometric candidates in previous surveysrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/927] Sequential number, as in table3meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.main2MASSIName from Adams et al. (2002, Cat. J/AJ/124/1570) <JHHMMSSs+DDMMSS>meta.idchar2MASSName from Kraus & Hillenbrand (2007, Cat. J/AJ/134/2340) <JHHMMSSss+DDMMSSs>meta.idchar2MASSBSecond Name from Kraus & Hillenbrand (2007, Cat. J/AJ/134/2340) <JHHMMSSss+DDMMSSs>meta.idcharPHJ? Name from Pinfield et al. (1997MNRAS.287..180P) <Cl* NGC 2632 PHJ NN> in Simbadmeta.idintnullable