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Mass segregation in the diffuse outer-halo globular cluster Palomar 14
Matthias J. Frank, Eva K. Grebel, Andreas H. W. Küpper
We present an analysis of the radial dependence of the stellar mass function in the diffuse outer-halo globular cluster Palomar 14. Using archival HST/WFPC2 data of the cluster's c…
An intermediate-band photometric study of the "Globular Cluster" NGC 2419
Andreas Koch, Matthias Frank, Sofia Feltzing +3
NGC 2419 is one of the remotest star clusters in the Milky Way halo and its exact nature is yet unclear: While it has traits reminiscent of a globular cluster (GC), its large radiu…
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…