J/MNRAS/458/105ivo://CDS.VizieR/J/MNRAS/458/105doi:10.26093/cds/vizier.74580105CDSKartha S.S.Forbes D.A.Alabi A.B.Brodie J.P.Romanowsky A.J.,Strader J.Spitler L.R.Jennings Z.G.Roediger J.C.2024-08-15T20:18:17Z2017-05-30T15:38:45ZCDS support team

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

cds-question@unistra.frgalaxiesglobular-star-clustersvisible-astronomysloan-photometryradial-velocityWe present an investigation of the globular cluster (GC) systems of NGC 3607 and NGC 3608 as part of the ongoing SLUGGS (SAGES Legacy Unifying Globulars and GalaxieS) survey. We use wide-field imaging data from the Subaru telescope in the g, r and i filters to analyse the radial density, colour and azimuthal distributions of both GC systems. With the complementary kinematic data obtained from the Keck II telescope, we measure the radial velocities of a total of 81 GCs. Our results show that the GC systems of NGC 3607 and NGC 3608 have a detectable spatial extent of ~15 and 13 galaxy effective radii, respectively. Both GC systems show a clear bimodal colour distribution. We detect a significant radial colour gradient for the GC subpopulations in both galaxies. NGC 3607 exhibits an overabundance of red GCs on the galaxy minor axis and NGC 3608 shows a misalignment in the GC subpopulation position angles with respect to the galaxy stellar component. With the aid of literature data, we discuss several relationships between the properties of GC systems and their host galaxies. A one-to-one relation between the ellipticities of red GCs and the galaxy stellar light emphasizes the evolutionary similarities between them. In our sample of four slowly rotating galaxies with kinematically decoupled cores, we observe a higher ellipticity for the blue GC subpopulation than their red counterparts. Also, we notice the flattening of negative colour gradients for the blue GC subpopulations with increasing galaxy stellar mass. Finally, we discuss the formation scenarios associated with the blue GC subpopulation.2016MNRAS.458..105Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/458/105CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/426/1475 : CaT in 903 globular clusters (Usher+, 2012)J/MNRAS/428/389 : SLUGGS globular clusters in early-type galaxies (Pota+ 2013)J/MNRAS/436/1172 : Globular Clusters of NGC 4278 in SLUGGS (Usher+, 2013)J/AJ/148/32 : Globular cluster candidates in NGC 3115 (Jennings+, 2014)J/MNRAS/450/1962 : M60 SLUGGS and Gemini/GMOS combined study (Pota+, 2015)J/MNRAS/451/2625 : SLUGGS Globular Cluster CaT and [Z/H] (Pastorello+, 2015)J/MNRAS/452/2208 : NGC 4473 globular clusters (Alabi+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/458/105https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/458/105http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/458/105https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/458/105https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/458/105http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/458/105GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/458/105/tablea1 (Catalogue of objects detected around NGC 3607 and NGC 3608)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/458/105/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/458/105/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/458/105/tablea1?GETtext/xml+votable180.050000true169.2172288918.00330.0055555555555555566/28221https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/458/105?format=asciiOpticaldefaultJ/MNRAS/458/105/tablea1Catalogue of objects detected around NGC 3607 and NGC 3608SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (1)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.maingmagSubaru/Suprime-Cam g magnitude (extinction-corrected)magphot.mag;em.opt.Bfloate_gmagrms uncertainty on gmagmagstat.error;phot.mag;em.opt.BfloatrmagSubaru/Suprime-Cam r magnitude (extinction-corrected)magphot.mag;em.opt.Rfloate_rmagrms uncertainty on rmagmagstat.error;phot.mag;em.opt.RfloatimagSubaru/Suprime-Cam i magnitude (extinction-corrected)magphot.mag;em.opt.Ifloate_imagrms uncertainty on imagmagstat.error;phot.mag;em.opt.IfloatHRV? Heliocentric velocitykm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRV? rms uncertainty on HRVkm/sstat.errorintnullable