Astrophysical: Star clusters

  • Publication
    Globular Cluster Populations: First Results from S4G Early-type Galaxies
    Using 3.6 μm images of 97 early-type galaxies, we develop and verify methodology to measure globular cluster populations from the S4G survey images. We find...
  • Publication
    Globular Cluster Populations: Results Including S4G Late-type Galaxies
    Using 3.6 and 4.5 μm images of 73 late-type, edge-on galaxies from the S4G survey, we compare the richness of the globular cluster populations of these galaxies...
  • Publication
    Globular cluster systems as tracers of environmental effects on Virgo early-type dwarfs
    Early-type dwarfs (dEs) are by far the most abundant galaxy population in nearby clusters. Whether these objects are primordial, or the recent end products of...
  • Publication
    Globular Cluster Systems in Elliptical Galaxies of Coma
    Globular cluster systems of 17 elliptical galaxies have been studied in the Coma Cluster of galaxies. Surface-brightness fluctuations have been used to...
  • Publication
    Globular cluster systems of relic galaxies
    We analyse the globular cluster (GC) systems of a sample of 15 massive, compact early-type galaxies (ETGs), 13 of which have already been identified as good...
  • Publication
    Globular cluster systems of six shell galaxies
    Context: .Shells in Elliptical Galaxies are faint, sharp-edged features, believed to provide evidence of a recent (˜ 0.5 - 2 × 109 years ago) merger event. We...
  • Talk
    Globular clusters as a dynamical probe of dark matter
    Gravitational dynamical friction affecting the orbits of globular clusters (GCs) was studied extensively as a possible formation mechanism for nuclear star...
  • Publication
    Globular Clusters in Virgo Ellipticals: Unexpected Results for Giants and Dwarfs from Advanced Camera for Surveys Imaging
    We have analyzed archival Hubble Space Telescope Advanced Camera for Surveys images in g and z of the globular cluster (GC) systems of 53 ellipticals in the...
  • Talk
    Globular clusters systems and their host dark matter halos
    In the Λ-CDM galaxy formation paradigm, the star formation history of a galaxy is coupled to the total mass of its dark matter halo through processes like...