J/AJ/133/394ivo://CDS.VizieR/J/AJ/133/394doi:10.26093/cds/vizier.51330394CDSMcNamara B.J.Harrison T.E.McArthur B.2009-02-22T14:22:19Z2009-02-22T15:17:44ZCDS support team

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

cds-question@unistra.frstellar-associationsmultiple-starshst-photometryThe Hubble Space Telescope Fine Guidance Sensors data on 23 stars in the intermediate-age cluster M35 having B-V<0.5 (~F7V) are analyzed to test whether binary periods, separations, and masses can be estimated by measuring periodic variations in the residuals of their internal proper motions. Of the 23 stars examined, 4 appear to possess a periodic signal. Unfortunately, these detections cannot be considered firm because the amplitudes of these waveforms are small (~1mas), the signal is only seen in one coordinate, and the derived periods are close to the duration of the data set. If the signals are real, they predict binary separations of >6AU, secondary masses between 0.3 and 0.6M_{sun}_, and mass ratios of about 0.2. This latter value is in agreement with capture models employing stars with circumstellar disks for the formation of binaries.2007AJ....133..394Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/133/394CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/306/361 : UBVI CCD photometry of M35 (NGC 2168) (Sung+ 1999)J/ApJ/546/1006 : VRI photometry of M35 (Barrado y Navascues+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/133/394https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/133/394http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/133/394https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/133/394https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/133/394http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/133/394GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/133/394/table2 (HST FGS Observations of M35 Stars in the POS Mode)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/133/394/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/133/394/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/133/394/table2?GETtext/xml+votable180.050000true92.348916724.404250.0055555555555555566/24339 24345https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/133/394?format=asciiOpticaldefaultJ/AJ/133/394/table2HST FGS Observations of M35 Stars in the POS ModerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFGSFGS number, Cl* NGC 2168 FGS NNN in Simbadmeta.id;meta.mainintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainNmNumber of measurementsmeta.numberintVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V colour indexmagphot.color;em.opt.B;em.opt.VfloatnullableTimeTime spanned by the FGS POS observationsyrtime.epochfloatComCommentmeta.notechar