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Galaxy Disruption Caught in the Act
A. M. Karick, M. J. Drinkwater, M. West +2
Direct evidence of stellar material from galaxy disruption in the intra-cluster medium (ICM) relies on challenging observations of individual stars, planetary nebulae and diffuse o…
Distance to the Centaurus cluster and its subcomponents from surface brightness fluctuations
S. Mieske, M. Hilker
We present I-band Surface Brightness Fluctuations (SBF) measurements for 15 early type galaxies (3 giants, 12 dwarfs) in the central region of the Centaurus cluster, based on VLT F…
A class of compact dwarf galaxies from disruptive processes in galaxy clusters
M. J. Drinkwater, M. D. Gregg, M. Hilker +5
Dwarf galaxies have attracted increased attention in recent years, because of their susceptibility to galaxy transformation processes within rich galaxy clusters. Direct evidence f…
Extragalactic Globular Clusters in the Near Infrared: III. NGC 5846 and NGC 7192
Maren Hempel, Michael Hilker, Markus Kissler-Patig +3
In this third paper of our series on near-IR and optical photometry of globular cluster systems in early-type galaxies we concentrate on the photometric results for NGC 5846 and NG…
Potential of the Surface Brightness Fluctuations method to measure distances to dwarf elliptical galaxies in nearby clusters
S. Mieske, M. Hilker, L. Infante
The potential of the Surface Brightness Fluctuations (SBF) method to determine the membership of dwarf elliptical galaxies (dEs) in nearby galaxy clusters is investigated. Extensiv…
Galaxy Threshing and Ultra-Compact Dwarfs in the Fornax Cluster
Michael D. Gregg, Michael J. Drinkwater, Michael J. Hilker +3
We have discovered a new type of galaxy in the Fornax Cluster: ``ultra-compact'' dwarfs (UCDs). The UCDs are unresolved in ground-based imaging and have spectra typical of old stel…