199 citations · 1.7k across the 29 of their papers we have counts for
20 papers · 1 filter
Growing a nuclear star cluster from star formation and cluster mergers: The JWST NIRSpec view of NGC 4654
Katja Fahrion, Torsten Böker, Michele Perna +10
We present a detailed study of the centre of NGC4654, a Milky Way-like spiral galaxy in the Virgo cluster that has been reported to host a double stellar nucleus, thus promising a…
GA-NIFS: Early-stage feedback in a heavily obscured AGN at
Eleonora Parlanti, Stefano Carniani, Hannah Übler +19
Dust-obscured galaxies are thought to represent an early evolutionary phase of massive galaxies in which the active galactic nucleus (AGN) is still deeply buried in significant amo…
Overview of the JWST Advanced Deep Extragalactic Survey (JADES)
Daniel J. Eisenstein, Chris Willott, Stacey Alberts +75
We present an overview of the James Webb Space Telescope (JWST) Advanced Deep Extragalactic Survey (JADES), an ambitious program of infrared imaging and spectroscopy in the GOODS-S…
GA-NIFS: Black hole and host galaxy properties of two z6.8 quasars from the NIRSpec IFU
Madeline A. Marshall, Michele Perna, Chris J. Willott +20
Integral Field Spectroscopy (IFS) with JWST NIRSpec will significantly improve our understanding of the first quasars, by providing spatially resolved, infrared spectroscopic capab…
Asymmetric spatial distribution of sub-solar metallicity stars in the Milky Way nuclear star cluster
A. Feldmeier-Krause, W. Kerzendorf, T. Do +10
We present stellar metallicity measurements of more than 600 late-type stars in the central 10 pc of the Galactic centre. Together with our previously published KMOS data, this dat…
Formation Mechanisms of IMBH in Globular Clusters
Mirek Giersz, Nathan Leigh, Arkadiusz Hypki +2
We very briefly discuss proposed in the literature possible scenarios for intermediate mass black holes (IMBH) formation in globular clusters. We also discuss the results of the MO…
Masses and Scaling Relations for Nuclear Star Clusters, and their Coexistence with Central Black Holes
Iskren Y. Georgiev, Torsten Böker, Natan Leigh +2
Galactic nuclei typically host either a Nuclear Star Cluster (NSC, prevalent in galaxies with masses ) or a Massive Black Hole (MBH, common in galaxies wit…
Stellar winds near massive black holes: The case of the S-stars
Nora Lützgendorf, Edwin van der Helm, Inti Pelupessy +1
The Galactic center provides a unique laboratory to study the interaction of a supermassive black hole (SMBH) with its gaseous and stellar environment. Simulations to determine the…
Intermediate-mass black holes in globular clusters: observations and simulations
Nora Lützgendorf, Markus Kissler-Patig, Karl Gebhardt +9
The study of intermediate-mass black holes (IMBHs) is a young and promising field of research. Formed by runaway collisions of massive stars in young and dense stellar clusters, in…
Large scale kinematics and dynamical modelling of the Milky Way nuclear star cluster
A. Feldmeier, N. Neumayer, A. Seth +6
Within the central 10pc of our Galaxy lies a dense nuclear star cluster (NSC), and similar NSCs are found in most nearby galaxies. Studying the structure and kinematics of NSCs rev…
N-body simulations of globular clusters in tidal fields: Effects of intermediate-mass black holes
Nora Lützgendorf, Holger Baumgardt, J. M. Diederik Kruijssen
Intermediate-mass black holes (IMBHs) may provide the missing link to understanding the growth of supermassive black holes in the early Universe. Some formation scenarios predict t…
The M_BH - sigma relation for intermediate-mass black holes in globular clusters
Nora Lützgendorf, Markus Kissler-Patig, Nadine Neumayer +6
For galaxies hosting supermassive black holes (SMBHs), it has been observed that the mass of the central black hole (M_BH) tightly correlates with the effective or central velocity…
Indication for an intermediate-mass black hole in the globular cluster NGC 5286 from kinematics
A. Feldmeier, N. Lützgendorf, N. Neumayer +6
Intermediate-mass black holes (IMBHs, 10^2-10^5 M_sun) fill the gap between stellar-mass black holes and supermassive black holes (SMBHs). Simulations have shown that IMBHs may for…
Intermediate-mass black holes in Globular Clusters
Nora Lützgendorf, Markus Kissler-Patig, Karl Gebhardt +6
For a sample of nine Galactic globular clusters we measured the inner kinematic profiles with integral-field spectroscopy that we combined with existing outer kinematic measurement…
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…
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…
A Dynamical N-body Model for the Central Region of Centauri
B. Jalali, H. Baumgardt, M. Kissler-Patig +4
Supermassive black holes (SMBHs) are fundamental keys to understand the formation and evolution of their host galaxies. However, the formation and growth of SMBHs are not yet well…
Kinematic signature of an intermediate-mass black hole in the globular cluster NGC 6388
N. Lützgendorf, M. Kissler-Patig, E. Noyola +4
Intermediate-mass black holes (IMBHs) are of interest in a wide range of astrophysical fields. In particular, the possibility of finding them at the centers of globular clusters ha…
VLT Kinematics for omega Centauri: Further Support for a Central Black Hole
Eva Noyola, Karl Gebhardt, Markus Kissler-Patig +4
The Galactic globular cluster omega Centauri is a prime candidate for hosting an intermediate mass black hole. Recent measurements lead to contradictory conclusions on this issue.…