High mass-to-light ratios of UCDs - Evidence for dark matter ? (2008)
Baumgardt, Holger, Mieske, Steffen
Ultra-compact dwarf galaxies (UCDs) are stellar systems with masses of around 10^7 to 10^8 Msun and half mass radii of 10-100 pc. They have some properties in common with massive globular clusters,...
Compact stellar systems in the Fornax cluster: a UV perspective (2008)
Mieske, Steffen, Hilker, Michael, Bomans, Dominik J., Rey, Soo-Chang, Kim, Suk, Yoon, Suk-Jin, ...
In recent years, increasing evidence for chemical complexity and multiple stellar populations in massive globular clusters (GCs) has emerged, including extreme horizontal branches (EHBs) and UV...
The Nature of UCDs: Internal Dynamics from an Expanded Sample and Homogeneous Database (2008)
Mieske, Steffen, Hilker, Michael, Jordan, Andres, Infante, Leopoldo, Kissler-Patig, Markus, Rejkuba, Marina, ...
We have obtained high-resolution spectra of 23 ultra-compact dwarf galaxies (UCDs) in the Fornax cluster with -10.4>M_V>-13.5 mag (10^6
Near-field cosmology with the VLT (2007)
Mieske, Steffen, Jerjen, Helmut
With the arrival of wide-field imagers on medium-size telescopes (e.g. SkyMapper, Pan-STARRS) and the future co-existence of LSST with the E-ELT, it is worthwhile to evaluate the scientific potential...
Mieske, Steffen, Kroupa, Pavel
A new type of compact stellar systems, labelled ``ultra-compact dwarf galaxies'' (UCDs), was discovered in the last decade. Recent studies show that their dynamical mass-to-light ratios (M/L) tend to...
On the efficiency of field star capture by star clusters (2007)
Mieske, Steffen, Baumgardt, Holger
An exciting recent finding regarding scaling relations among globular clusters is the so-called 'blue tilt': clusters of the blue sub-population follow a trend of redder colour with increasing...
A flat faint end of the Fornax cluster galaxy luminosity function (2007)
Mieske, Steffen, Hilker, Michael, Infante, Leopoldo, De Oliveira, Claudia Mendes
We analyse the photometric properties of the early-type Fornax cluster dwarf galaxy population (M_V>-17 mag), based on a wide field imaging study of the central cluster area in V and I band-passes...
Mieske, Steffen, Jordan, Andres, Cote, Patrick, Kissler-Patig, Markus, Peng, Eric, Ferrarese, Laura, ...
Also archived in: arXiv:astro-ph/0609079 v1 Sep 4 2006
Mieske, Steffen, Jordan, Andres, Cote, Patrick, Kissler-Patig, Markus, Peng, Eric W., Ferrarese, Laura, ...
We examine the correlation between globular cluster (GC) color and magnitude using HST/ACS imaging for a sample of 79 early-type galaxies (-21.7
The old globular cluster system of the dIrr galaxy NGC1427A in the Fornax cluster (2006)
Georgiev, Iskren Y., Hilker, Michael, Puzia, Thomas H., Chaname, Julio, Mieske, Steffen, Goudfrooij, Paul, ...
We present a study of the old globular cluster (GC) population of the dwarf irregular galaxy NGC 1427A using multi-wavelength VLT observations in U, B, V, I, H_alpha, J, H, and Ks bands under...
Bonn, University, Diss., 2005 (Nicht für den Austausch).
The properties of ultra-compact dwarf galaxies and their possible origin (2004)
Hilker, Michael, Mieske, Steffen
In this contribution the discovery and properties of ultra-compact dwarf galaxies are presented, and their possible origin is discussed. This new type of galaxy resides in the cores of galaxy...
Faint dwarf spheroidals in the Fornax Cluster: A flat luminosity function (2002)
Hilker, Michael, Mieske, Steffen, Infante, Leopoldo
We have discovered about 70 very faint dwarf galaxies in the Fornax Cluster. These dSphs candidates follow the same magnitude-surface brightness relation as their counterparts in the Local Group, and...
Ultra Compact Objects in the Fornax Cluster of Galaxies: Globular clusters or dwarf galaxies? (2002)
Mieske, Steffen, Hilker, Michael, Infante, Leopoldo
The relation between the Ultra Compact Objects (UCOs) recently discovered in the Fornax cluster (Drinkwater et al. 2000, Hilker et al. 1999) and the brightest globular clusters associated with the...