BV photometry of 3 globular clustersJ/A+A/448/171ivo://CDS.VizieR/J/A+A/448/171doi:10.26093/cds/vizier.34480171CDSHilker M.2007-02-08T12:26:49Z2007-02-08T13:25:19ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.frglobular-star-clustersvisible-astronomyWide-band photometrySome of the Galactic outer halo globular clusters are excellent tools to probe gravitational theories in the regime of weak accelerations. The measurement of the line-of-sight velocity dispersion among stars in these clusters will differentiate between the validity of Newtonian dynamics (low velocity dispersion) and the possibility of modified Newtonian dynamics (MOND) or dark matter dominated globular clusters (high velocity dispersion). In this paper, the properties of probable member stars of the three best-case gravitational theory-testing clusters AM 1, Pal 3 and Pal 14 are presented. The member selection is based on VLT photometry in Johnson BV. The positions of the stars were determined with an accuracy of the order of <=0.2", allowing their direct use for follow-up spectroscopy. The distance, reddening, age and metallicities of the clusters were estimated from isochrone fitting. Furthermore, improved structural parameters, like central coordinates, ellipticity, half-light radius, King model core and tidal radius, are presented.2006A&A...448..171Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/448/171CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/117/247 : Ages for globular clusters in the halo (Stetson+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/448/171https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/448/171http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/448/171https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/448/171https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/448/171http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/448/171GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/448/171/tablea1 (List of probable member stars of AM 1, ordered by increasing V magnitude.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/448/171/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/448/171/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/448/171/tablea1?GETtext/xml+votable180.050000true58.7622083-49.61238890.005555555555555556Cone search capability for table J/A+A/448/171/tablea2 (List of probable member stars of Pal 3, ordered by increasing V magnitude.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/448/171/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/448/171/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/448/171/tablea2?GETtext/xml+votable180.050000true151.4010.06663890.005555555555555556Cone search capability for table J/A+A/448/171/tablea3 (List of probable member stars of Pal 14, ordered by increasing V magnitude)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/448/171/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/448/171/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/448/171/tablea3?GETtext/xml+votable180.050000true242.774208314.96252780.0055555555555555566/27237 31722-31723 34317https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/448/171?format=asciiOpticaldefaultJ/A+A/448/171/tablea1List of probable member stars of AM 1, ordered by increasing V magnitude.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number (1)meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmagV magnitude from PSF fitmagphot.mag;em.opt.VfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.Vfloate_Bmagrms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatRadProjected distance to cluster centerarcminpos.angDistancefloatTypePart of the CMD the star probably belongs (2)src.class.colorchar
J/A+A/448/171/tablea2List of probable member stars of Pal 3, ordered by increasing V magnitude.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number (1)meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmagV magnitude from PSF fitmagphot.mag;em.opt.VfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.Vfloate_Bmagrms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatRadProjected distance to cluster centerarcminpos.angDistancefloatTypePart of the CMD the star probably belongs (2)src.class.colorchar
J/A+A/448/171/tablea3List of probable member stars of Pal 14, ordered by increasing V magnituderecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number (1)meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmagV magnitude from PSF fitmagphot.mag;em.opt.VfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.Vfloate_Bmagrms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatRadProjected distance to cluster centerarcminpos.angDistancefloatTypePart of the CMD the star probably belongs (2)src.class.colorchar