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The Transition between Star Clusters and Dwarf Galaxies -- On the existence of a mass-radius relation for star clusters of masses >10^7 Mo: are these objects formed in mergers of stellar systems?
Markus Kissler-Patig, Andres Jordan, Nate Bastian
At which masses does the regime of globular clusters end and the one of dwarf galaxies begin? And what separates these two classes of hot stellar systems? We examine to what extend…
Observational evidence for a truncation of the star cluster initial mass function at the high mass end
Mark Gieles, Soeren Larsen, Remco Scheepmaker +3
We present the luminosity function (LF) of star clusters in M51 based on HST/ACS observations taken as part of the Hubble Heritage project. The clusters are selected based on their…
Dynamical Mass Estimates for Two Luminous Star Clusters in Galactic Merger Remnants
N. Bastian, R. P. Saglia, P. Goudfrooij +4
We present high-dispersion spectra of two extremely massive star clusters in galactic merger remnants. One cluster, W30, is located in the ~500 Myr old merger remnant NGC 7252 and…
Young Star Cluster Complexes in NGC 4038/39: Integral field spectroscopy using VIMOS-VLT
N. Bastian, E. Emsellem, M. Kissler-Patig +1
We present the first results of a survey to obtain Integral Field Spectroscopy of merging galaxies along the Toomre Sequence. In the present work, we concentrate on the star cluste…
Hierarchical Star Formation in M51: Star/Cluster Complexes
Nate Bastian, Mark Gieles, Yuri N. Efremov +1
We report on a study of young star cluster complexes in the spiral galaxy M51. Recent studies have confirmed that star clusters do not form in isolation, but instead tend to form i…
The Star Cluster Population of M51: III. Cluster disruption and formation history
Mark Gieles, Nate Bastian, Henny Lamers +1
In this work we concentrate on the evolution of the cluster population of the interacting galaxy M51 (NGC 5194), namely the timescale of cluster disruption and possible variations…