English
Related papers

Related papers: Indication for an intermediate-mass black hole in …

200 papers

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 with mass of the order of 10^2 - 10^5 M_SUN.…

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 has recently drawn attention. IMBHs became detectable since…

Astrophysics of Galaxies · Physics 2015-05-28 N. Lützgendorf , M. Kissler-Patig , E. Noyola , B. Jalali , P. T. de Zeeuw , K. Gebhardt , H. Baumgardt

The detection of intermediate mass black holes (IMBHs) in Galactic globular clusters (GCs) has so far been controversial. In order to characterize the effectiveness of integrated-light spectroscopy through integral field units, we analyze…

Astrophysics of Galaxies · Physics 2017-04-19 Ruggero de Vita , Michele Trenti , Paolo Bianchini , Abbas Askar , Mirek Giersz , Glenn van de Ven

By means of a multimass isotropic and spherical model that includes the self-consistent treatment of a central intermediate-mass black hole (IMBH), the influence of this black hole on the morphological and physical properties of globular…

Astrophysics · Physics 2008-11-26 P. Miocchi

In many theoretical scenarios it is expected that intermediate-mass black holes (IMBHs, with masses M ~ 100-10000 solar masses) reside at the centers of some globular clusters. However, observational evidence for their existence is limited.…

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, intermediate-mass black holes could still be present in the…

[abridged] Theoretical investigations have suggested the presence of Intermediate Mass Black Holes (IMBHs, with masses in the 100-10000 Msun range) in the cores of some Globular Clusters (GCs). In this paper we present the first application…

Decades after the first predictions of intermediate-mass black holes (IMBHs) in globular clusters (GCs) there is still no unambiguous observational evidence for their existence. The most promising signatures for IMBHs are found in the cores…

Astrophysics of Galaxies · Physics 2015-06-05 Stefan Umbreit , Frederic A. Rasio

The presence or absence of intermediate-mass black holes (IMBHs) at the centre of Milky Way globular clusters (GCs) is still an open question. This is either due to observational restrictions or limitations in the dynamical modelling…

We present results of a series of Monte Carlo simulations investigating the imprint of a central intermediate-mass black hole (IMBH) on the structure of a globular cluster. We investigate the three-dimensional and projected density…

Astrophysics of Galaxies · Physics 2012-07-12 Stefan Umbreit , John M. Fregeau , Sourav Chatterjee , Frederic A. Rasio

Contrary to supermassive and stellar-mass black holes (SBHs), the existence of intermediate-mass black holes (IMBHs) with masses ranging between 10^{2-5} Msun has not yet been confirmed. The main problem in the detection is that the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Symeon Konstantinidis , Pau Amaro-Seoane , Kostas D. Kokkotas

It has been assumed that intermediate-mass black holes (IMBHs) in globular clusters can only reside in the most centrally concentrated clusters, with a so-called `core-collapsed' density profile. While this would be a natural guess, it is…

Astrophysics · Physics 2009-11-10 Holger Baumgardt , Junichiro Makino , Piet Hut

There have been reports of possible detections of intermediate-mass black holes (IMBHs) in globular clusters (GCs). Empirically, there exists a tight correlation between the central supermassive black hole (SMBH) mass and the mean velocity…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Yu-Qing Lou , Yi-Hong Wu

The firm co-existence of intermediate-mass black holes (IMBHs, $M_{\rm BH} \approx 10^3-10^6 M_odot$) in nuclear star clusters (NSCs) remains uncertain because the limited number of verified instances within the local Universe, limited…

Astrophysics of Galaxies · Physics 2025-09-04 Hai N Ngo , Dieu D. Nguyen , Truong N. Nguyen , Trung H. Dang , Tien H. T. Ho

This study investigates the detectability of intermediate-mass black holes (IMBHs) within the mass range $10^2-10^5$ solar masses in the globular star clusters of NGC 1399 at a frequency of 300.00 MHz. Employing the theoretical Bondi…

Astrophysics of Galaxies · Physics 2024-09-10 B. Karimi , P. Barmby , S. Abbassi

The detection of Intermediate-Mass Black Holes (IMBHs) in dwarf galaxies is crucial to closing the gap in the wide mass distribution of black holes ($\sim 3 \, \rm M_{\odot}$ to $\sim 5 \times 10^{10} \, \rm M_{\odot}$). IMBHs originally…

Astrophysics of Galaxies · Physics 2022-02-15 Emma Jane Weller , Fabio Pacucci , Lars Hernquist , Sownak Bose

Context. The problem of the existence of intermediate-mass black holes (IMBHs) at the centre of globular clusters is a hot and controversial topic in current astrophysical research with important implications in stellar and galaxy…

Astrophysics of Galaxies · Physics 2010-06-14 P. Miocchi

Intermediate mass black holes (IMBHs), with masses between 100 to 10^5 M_\odot, represent the link between stellar mass black holes and the supermassive black holes that reside in galaxy centers. While IMBHs are crucial to our understanding…

Astrophysics of Galaxies · Physics 2018-07-25 Jenna M. Cann , Shobita Satyapal , Nicholas P. Abel , Claudio Ricci , Nathan J. Secrest , Laura Blecha , Mario Gliozzi

Intermediate-mass black holes (IMBHs) by definition have masses of $M_{\rm IMBH} \sim 10^{2-5}~M_\odot$, a range with few observational constraints. Finding IMBHs in globular star clusters (GCs) would validate a formation channel for…

Astrophysics of Galaxies · Physics 2021-09-08 J. M. Wrobel , T. J. Maccarone , J. C. A. Miller-Jones , K. E. Nyland

The existence of black holes (BHs) with masses in the range between stellar remnants and supermassive BHs has only recently become unambiguously established. GW190521, a gravitational wave signal detected by the LIGO/Virgo Collaboration,…

‹ Prev 1 2 3 10 Next ›