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A comprehensive chemical abundance study of the outer halo globular cluster M 75
Nikolay Kacharov, Andreas Koch, Andrew McWilliam
Context: M 75 is a relatively young Globular Cluster (GC) found at 15 kpc from the Galactic centre at the transition region between the inner and outer Milky Way halos. Aims: Our a…
Chemical element abundances in the outer halo globular cluster M 75
Nikolay Kacharov, Andreas Koch
We present the first comprehensive abundance study of the massive, outer halo globular cluster (GC) M 75 (NGC 6864). This unique system shows a very extended trimodal horizontal br…
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…