English
Related papers

Related papers: The dynamical fingerprint of intermediate mass bla…

200 papers

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

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

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

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…

Finding an intermediate-mass black hole (IMBH) in a globular cluster (GC), or proving its absence, is a crucial ingredient in our understanding of galaxy formation and evolution. The challenge is to identify a unique signature of an IMBH…

Astrophysics of Galaxies · Physics 2017-08-23 Alice Zocchi , Mark Gieles , Vincent Hénault-Brunet

We explore the signatures that a binary intermediate mass black hole (IMBH) imprints on the velocity and on the angular momentum of globular cluster stars. Simulating 3-body encounters between a star and a binary IMBH, we find that the…

Astrophysics · Physics 2009-11-11 M. Mapelli , M. Colpi , A. Possenti , S. Sigurdsson

Although their existence is not yet confirmed observationally, intermediate mass black holes (IMBHs) may play a key role in the dynamics of galactic nuclei. In this paper, we neglect the effect of the nuclear star cluster itself and…

Astrophysics of Galaxies · Physics 2020-04-15 Barnabás Deme , Yohai Meiron , Bence Kocsis

There is both theoretical expectation and some observational clues that intermediate mass black holes reside in nuclei of globular clusters. In order to find an independent indicator for their existence, we investigate in this paper how an…

Astrophysics of Galaxies · Physics 2019-01-18 L. Subr , G. Fragione , J. Dabringhausen

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,…

Recent observations suggest the presence of supermassive black holes at the centers of many galaxies. The existence of intermediate-mass black holes (IMBHs) in globular clusters has also been predicted. We focus on gravitational lensing as…

Astrophysics of Galaxies · Physics 2021-01-01 Takayuki Tatekawa , Yuuki Okamura

In this paper we explore the interplay between intermediate-mass black holes (IMBHs) and their nursing globular clusters (GCs), taking advantage of over 2000 Monte Carlo GC models. We find that the average density of IMBHs sphere of…

Astrophysics of Galaxies · Physics 2019-05-06 Manuel Arca Sedda , Abbas Askar , Mirek Giersz

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.…

We propose a new formation channel for intermediate mass black hole (IMBH) binaries via globular cluster collisions in the Galactic disc. Using numerical simulations, we show that the IMBHs form a tight binary that enters the gravitational…

Astrophysics of Galaxies · Physics 2019-06-17 Manuel Arca Sedda , Alessandra Mastrobuono-Battisti

Observations suggest that star clusters often form in binaries or larger bound groups. Therefore, mergers between two clusters are likely to occur. If these clusters both harbor an intermediate-mass black hole (IMBH; 10^{2-4} Msun) in their…

Astrophysics · Physics 2009-11-11 Pau Amaro-Seoane , Marc Freitag

Evidence has been mounting for the existence of black holes with masses from 10^2 to 10^4 M_Solar associated with stellar clusters. Such intermediate-mass black holes (IMBHs) will encounter other black holes in the dense cores of these…

Astrophysics · Physics 2009-11-07 Kayhan Gultekin , M. Coleman Miller , Douglas P. Hamilton

This paper reviews the subject of intermediate-mass black holes (IMBHs) with masses between those of "stellar-mass" and "super-massive" black holes. The existence of IMBHs is a real possibility: they might plausibly have formed as remnants…

Astrophysics · Physics 2007-05-23 Roeland P. van der Marel

Establishing or ruling out, either through solid mass measurements or upper limits, the presence of intermediate-mass black holes (IMBHs) at the centers of star clusters would profoundly impact our understanding of problems ranging from the…

Astrophysics of Galaxies · Physics 2015-05-14 Julio Chanamé , Justice Bruursema , Rupali Chandar , Jay Anderson , Roeland van der Marel , Holland Ford

Theoretical models suggest that intermediate mass black holes (IMBHs) may form and reside in the centers of globular clusters. IMBHs are still elusive to observations, but the accelerations of pulsars may bring along a unique fingerprint of…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Federico Abbate , Andrea Possenti , Monica Colpi , Mario Spera

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

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.…

‹ Prev 1 2 3 10 Next ›