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Surface brightness profile of the Milky Way’s nuclear star cluster
Context. Although the Milky Way nuclear star cluster (MWNSC) was discovered more than four decades ago, several of its key properties have not been determined unambiguously up to now because of theExpand
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The mass of the black hole in Centaurus A from SINFONI AO-assisted integral-field observations of stellar kinematics
We present a determination of the mass of the supermassive black hole (BH) and the nuclear stellar orbital distribution of the elliptical galaxy Centaurus A (Cen A) (NGC 5128) using high-resolutionExpand
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The Central Parsecs of Centaurus A: High-excitation Gas, a Molecular Disk, and the Mass of the Black Hole*
We present two-dimensional gas-kinematic maps of the central region in Centaurus A. The adaptive optics (AO) assisted SINFONI data from the VLT have a resolution of 0.12'' --> in K band. The ionizedExpand
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A supermassive black hole in an ultra-compact dwarf galaxy
Ultra-compact dwarf galaxies are among the densest stellar systems in the Universe. These systems have masses of up to 2 × 108 solar masses, but half-light radii of just 3–50 parsecs. Dynamical massExpand
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Resolving the innermost parsec of Centaurus A at mid-infrared wavelengths
Context. To reveal the origin of mid-infrared radiation from the core of Centaurus A, we carried out interferometric observations with the MID-infrared Interferometer (MIDI) at ESO’s VLTI telescopeExpand
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The NGC 404 Nucleus: Star Cluster and Possible Intermediate Mass Black Hole
We examine the nuclear morphology, kinematics, and stellar populations in nearby S0 galaxy NGC 404 using a combination of adaptive optics assisted near-IR integral-field spectroscopy, opticalExpand
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The spectral energy distribution of the central parsecs of the nearest AGN
Spectral energy distributions (SEDs) of the central few tens of parsec region of some of the nearest, most well-studied, active galactic nuclei (AGN) are presented. These genuine AGN-core SEDs,Expand
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On central black holes in ultra-compact dwarf galaxies
Context. The dynamical mass-to-light (M/L) ratios of massive ultra-compact dwarf galaxies (UCDs) are about 50% higher than predicted by stellar population models. Aims. Here we investigate theExpand
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Masses and scaling relations for nuclear star clusters, and their co-existence with central black holes
Galactic nuclei typically host either a Nuclear Star Cluster (NSC, prevalent in galaxies with masses $\lesssim 10^{10}M_\odot$) or a Massive Black Hole (MBH, common in galaxies with masses $\gtrsimExpand
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Large scale kinematics and dynamical modelling of the Milky Way nuclear star cluster
Context. Within the central 10 pc of our Galaxy lies a dense cluster of stars. This nuclear star cluster forms a distinct component of the Galaxy, and similar nuclear star clusters are found in mostExpand
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