134 citations · 829 across the 17 of their papers we have counts for
5 papers · 1 filter
Limits on intermediate-mass black holes in six Galactic globular clusters with integral-field spectroscopy
Nora Lützgendorf, Markus Kissler-Patig, Karl Gebhardt +6
The formation of supermassive black holes at high redshift still remains a puzzle to astronomers. Their growth becomes reasonable only when starting from a massive seed black hole…
Near-infrared proper motions and spectroscopy of infrared excess sources at the Galactic Center
A. Eckart, K. Muzic, S. Yazici +11
There are a number of faint compact infrared excess sources in the central stellar cluster of the Milky Way. Their nature and origin is unclear. In addition to several isolated obj…
High-velocity stars in the cores of globular clusters: The illustrative case of NGC 2808
Nora Lützgendorf, Alessia Gualandris, Markus Kissler-Patig +7
We report the detection of five high-velocity stars in the core of the globular cluster NGC 2808. The stars lie on the the red giant branch and show total velocities between 40 and…
Central kinematics of the globular cluster NGC 2808: Upper limit on the mass of an intermediate-mass black hole
Nora Lützgendorf, Markus Kissler-Patig, Karl Gebhardt +5
Globular clusters are an excellent laboratory for stellar population and dynamical research. Recent studies have shown that these stellar systems are not as simple as previously as…
The S-Star Cluster at the Center of the Milky Way: On the nature of diffuse NIR emission in the inner tenth of a parsec
Nadeen Sabha, Andreas Eckart, David Merritt +9
Sagittarius A*, the super-massive black hole at the center of the Milky Way, is surrounded by a small cluster of high velocity stars, known as the S-stars. We aim to constrain the…