559 citations · 9.7k across the 192 of their papers we have counts for
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The globular cluster system of NGC 1399 V. dynamics of the cluster system out to 80 kpc
Y. Schuberth, T. Richtler, M. Hilker +4
(Abridged) We use the largest set of globular cluster velocities obtained so far of any elliptical galaxy to revise and extend the previous investigations of the dynamics of NGC 13…
Stromgren photometry of Galactic Globular Clusters. II Metallicity distribution of red giants in Omega Centauri
A. Calamida, G. Bono, P. B. Stetson +23
We present new intermediate-band Stroemgren photometry based on more than 300 u,v,b,y images of the Galactic globular cluster Omega Cen. Optical data were supplemented with new mul…
Testing Fundamental Physics with Distant Star Clusters: Analysis of Observational Data on Palomar 14
K. Jordi, E. K. Grebel, M. Hilker +6
We use the distant outer halo globular cluster Palomar 14 as a test case for classical vs. modified Newtonian dynamics (MOND). Previous theoretical calculations have shown that the…
Globular cluster systems in nearby dwarf galaxies - II. Nuclear star clusters and their relation to massive Galactic globular clusters
Iskren Y. Georgiev, Michael Hilker, Thomas H. Puzia +2
(Abridged) Using luminosities and structural parameters of globular clusters (GCs) in the nuclear regions (nGCs) of low-mass dwarf galaxies from HST/ACS imaging we derive the prese…
Symbolic Computing with Incremental Mindmaps to Manage and Mine Data Streams - Some Applications
Claudine Brucks, Michael Hilker, Christoph Schommer +2
In our understanding, a mind-map is an adaptive engine that basically works incrementally on the fundament of existing transactional streams. Generally, mind-maps consist of symbol…
Testing fundamental physics with distant star clusters: theoretical models for pressure-supported stellar systems
Hosein Haghi, Holger Baumgardt, Pavel Kroupa +3
We investigate the mean velocity dispersion and the velocity dispersion profile of stellar systems in MOND, using the N-body code N-MODY, which is a particle-mesh based code with a…
The early-type dwarf galaxy population of the Centaurus cluster
I. Misgeld, M. Hilker, S. Mieske
We present a photometric study of the early-type dwarf galaxy population of the Centaurus cluster, aiming at investigating the galaxy luminosity function (LF) and galaxy scaling re…