Globular cluster systems of six shell galaxies

  title={Globular cluster systems of six shell galaxies},
  author={G.Sikkema and Reynier F. Peletier and D.Carter and Edwin Valentijn and Marc Balcells},
  journal={Astronomy and Astrophysics},
Context. Shells in Elliptical Galaxies are faint, sharp-edged featu res, believed to provide evidence of a recent (∼ 0.5− 2× 10 9 years ago) merger event. We analyse the Globular Cluster (GC) systems of six shell elliptical galaxies, to examine the effects of mergers upon the GC formation history. Aims. We examine the colour distributions, and investigate differences between red and blue globular cluster populations. We present luminosity functions, spatial distributions and specific frequenc… 
HST/ACS observations of shell galaxies : inner shells, shell colours and dust
Context. Shells in Elliptical Galaxies are faint, sharp-edged features, believed to provide evidence for a merger event. Accurate photometry at high spatial resolution is needed to learn on presence
Intermediate-age Globular Clusters in Four Galaxy Merger Remnants
We present the results of combining Hubble Space Telescope optical photometry with ground-based Ks-band photometry from the Gemini imagers NIRI and FLAMINGOS-I to study the globular-cluster
Spatial distribution of dust in the shell elliptical NGC 5982
Aims. Shells in Ellipticals are peculiar faint sharp edged features that are thought to be formed by galaxy mergers. We determine the shell and dust distributions, and colours of a well-resolved
Star formation in low density HI gas around the elliptical galaxy NGC 2865
Context. Interacting galaxies surrounded by Hi tidal debris are ideal sites for the study of young clusters and tidal galaxy formation. The process that triggers star formation in the low-density
The globular cluster kinematics and galaxy dark matter content of NGC 3923
From observations with the GMOS multi-slit spectrograph on the Gemini North telescope, we have obtained spectra for 39 globular cluster candidates in the Virgo giant elliptical galaxy NGC 4649 (M60),
The Globular Cluster System in NGC 5866: Optical Observations from Hubble Space Telescope Advanced Camera for Surveys*
We perform a detailed study of the globular cluster (GC) system in the galaxy NGC 5866 based on F435W, F555W, and F625W (~B, V, and R) Hubble Space Telescope Advanced Camera for Surveys images.
Gemini/GMOS imaging of globular cluster systems in five early-type galaxies
This paper presents deep high quality photometry of globular cluster (GC) systems belonging to five early-type galaxies covering a range of mass and en vironment. Photometric data were obtained with
Dynamical Evolution of Globular Cluster Systems Formed in Galaxy Mergers: Deep Hubble Space Telescope Advanced Camera for Surveys Imaging of Old and Intermediate-Age Globular Clusters in NGC 3610
The Advanced Camera for Surveys on board the Hubble Space Telescope has been used to obtain deep, high-resolution images of the giant elliptical galaxy NGC 3610, a well-established remnant of a
We present new metallicity estimates for globular cluster (GC) candidates in the Sd spiral NGC 300, one of the nearest spiral galaxies outside the Local Group. We have obtained optical spectroscopy
Evidence for Three Subpopulations of Globular Clusters in the Early-Type Poststarburst Shell Galaxy AM 0139−655*
We present deep Hubble Space Telescope ACS images of the poststarburst shell galaxy AM 0139� 655. We find evidence for the presence of three distinct globular cluster (GC) subpopulations


Ellipticals with Kinematically--Distinct Cores: WFPC2 Imaging of Globular Clusters
Here we present HST WFPC2 imaging of 14 kinematically--distinct core ellipticals to examine their globular cluster systems. In particular, we probe the galaxy central regions, for which we might
The Globular Cluster Systems in the Coma Ellipticals. II. Metallicity Distribution and Radial Structure in NGC 4874 and Implications for Galaxy Formation
Deep Hubble Space Telescope WFPC2 images in V and I are used to investigate the globular cluster system (GCS) in NGC 4874, the central cD galaxy of the Coma cluster. Although the luminosity function
Keck imaging of the globular cluster systems in the early-type galaxies NGC 1052 and 7332
The presence of two globular cluster subpopulations in early-type galaxies is now the norm rather than the exception. Here we present two more examples for which the host galaxy appears to have
New Insights from HST Studies of Globular Cluster Systems. I. Colors, Distances, and Specific Frequencies of 28 Elliptical Galaxies
We present an analysis of the globular cluster systems of 28 elliptical galaxies using archival WFPC2 images in the V and I bands. The V-I color distributions of at least 50% of the galaxies appear
The Globular Cluster System in the Outer Regions of NGC 4472
We have undertaken a study of the globular cluster (GC) systems of a large sample of elliptical and spiral galaxies in order to test specific predictions of galaxy formation models. Here we present
The Luminosity Functions of Old and Intermediate-Age Globular Clusters in NGC 3610*
The Wide Field Planetary Camera 2 on board the Hubble Space Telescope (HST) has been used to obtain high-resolution images of NGC 3610, a dynamically young elliptical galaxy in a group environment.
The Globular Cluster Systems of the Early-Type Galaxies NGC 3379, NGC 4406, and NGC 4594 and Implications for Galaxy Formation
We have investigated the global properties of the globular cluster (GC) systems of three early-type galaxies: the Virgo Cluster elliptical NGC 4406, the field elliptical NGC 3379, and the field S0
We present high signal-to-noise Keck spectra for 10 globular clusters associated with the giant Fornax elliptical galaxy NGC 1399 and compare measured line indices with current stellar population
Secondary Globular Cluster populations
This study is motivated by two facts: 1. The formation of populous star cluster systems is widely observed to accompany violent star formation episodes in gas-rich galaxies as e.g. those triggered by
Imaging of the protoelliptical NGC 1700 and its globular cluster system
An excellent candidate for a young elliptical, or ‘protoelliptical’ galaxy is NGC 1700. Here we present new B-, V- and I-band imaging using the Keck telescope, and reanalyse existing V- and I-band