168 citations · 3k across the 87 of their papers we have counts for
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Probable member stars of the gravitational theory-testing globular clusters AM 1, Pal 3 and Pal 14
Michael Hilker
Some of the Galactic outer halo globular clusters are excellent tools to probe gravitational theories in the regime of weak accelerations (Baumgardt et al. 2005). The measurement o…
Reddening distribution across the center of the globular cluster Omega Centauri
A. Calamida, P. B. Stetson, G. Bono +17
We present new medium-band uvby Stromgren and broad-band VI photometry for the central regions of the globular cluster Omega Cen. From this photometry we have obtained differential…
The Globular Cluster System of NGC 1399 IV. Some noteworthy objects
T. Richtler, B. Dirsch, S. Larsen +2
We present 8 bright globular clusters and/or objects of less familiar nature which we found in the course of scrutinizing the globular cluster system of NGC 1399. These objects are…
The counterparts of Local Group dwarf spheroidals in nearby clusters
M. Hilker, S. Mieske, L. Infante
In this contribution, we report on the discovery of dwarf spheroidals (dSphs) in the core of the Fornax cluster. Their photometric properties -- like magnitude, colour, surface bri…
Analysis of medium resolution spectra by automated methods - application to M55 and omega Centauri
P. G. Willemsen, M. Hilker, A. Kayser +1
We have employed feedforward neural networks trained on synthetic spectra in the range 3800 to 5600 AA with resolutions of 2-3 AA to determine metallicities from spectra of about 1…
The Outer Cluster System of NGC 1399: Preliminary Results
Y. Schuberth, T. Richtler, B. Dirsch +2
We present preliminary results of our dynamical study of the outer globular cluster system of NGC 1399, the central galaxy in the Fornax Cluster. About 160 new radial velocities fo…