A population of luminous globular clusters and stripped nuclei with elevated mass to light ratios around NGC 5128
Antoine Dumont,
Anil C. Seth,
Jay Strader
et al.
Abstract:The dense central regions of tidally disrupted galaxies can survive as ultra-compact dwarfs (UCDs) that hide among the luminous globular clusters (GCs) in the halo of massive galaxies. An exciting confirmation of this model is the detection of overmassive black holes in the centers of some UCDs, which also lead to elevated dynamical mass-to-light ratios (M/L dyn ). Here we present new high-resolution spectroscopic observations of 321 luminous GC candidates in the massive galaxy NGC 5128/Centaurus A. Using thes… Show more
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