J/A+A/459/391ivo://CDS.VizieR/J/A+A/459/391doi:10.26093/cds/vizier.34590391CDSSchuberth Y.Richtler T.Dirsch B.Hilker M.Larsen S.S.,Kissler-Patig M.Mebold U.2017-06-30T05:48:56Z2007-11-07T21:39:19ZCDS support team

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

cds-question@unistra.frgalaxiesglobular-star-clustersphotometryradial-velocityWe present the first dynamical study of the globular cluster system of NGC 4636. It is the southernmost giant elliptical galaxy of the Virgo cluster and is claimed to be extremely dark matter dominated, according to X-ray observations. Globular clusters are used as dynamical tracers to investigate, by stellar dynamical means, the dark matter content of this galaxy. Several hundred medium resolution spectra were acquired at the VLT with FORS 2/MXU. We obtained velocities for 174 globular clusters in the radial range 0.90'<R<15.5', or 0.5-9R_e_ in units of effective radius. Assuming a distance of 15Mpc, the clusters are found at projected galactocentric distances in the range 4 to 70kpc, the overwhelming majority within 30kpc. The measured line-of-sight velocity dispersions are compared to Jeans-models.2006A&A...459..391Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/459/391CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/367/156 : C-T1 photometry in NGC 1374, 1379 and 1387 (Bassino+, 2006)J/A+A/433/43 : NGC 4636 globular cluster system C-T1 phot. (Dirsch+, 2005)J/A+A/443/413 : VIKs photometry of NGC 4365 globular clusters (Larsen+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/459/391https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/459/391http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/459/391https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/459/391https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/459/391http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/459/391GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/459/391/tablea (Photometry and velocity in NGC 4636)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/459/391/tablea?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/459/391/tablea?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/459/391/tablea?GETtext/xml+votable180.050000true190.7168752.60522220.0055555555555555566/26313 26316https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/459/391?format=asciiOpticaldefaultJ/A+A/459/391/tableaPhotometry and velocity in NGC 4636DEJ2000Declination (J2000)pos.eq.dec;meta.mainC-R? C-R colour index (C filter at 391+/-110nm)magphot.color;em.opt.B;em.opt.Rfloatnullablee_C-R? rms uncertainty on C-Rmagstat.errorfloatnullableRmag? R magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? rms uncertainty on Rmagmagstat.error;phot.mag;em.opt.RfloatnullableVelRadial Velocitykm/sspect.dopplerVeloc;pos.heliocentricinte_Velrms uncertainty on Velkm/sstat.errorintSimbadSimbad column added by the CDSmeta.refcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTSimbad column added by the CDSsrc.classchar[SRD2006]Identification number, F.F NNNmeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.main