Results 31 to 40 of about 5,978,686 (296)

Intermediate-Mass Black Hole Feedback in Dwarf Galaxies: a View from Cosmological Simulations [PDF]

open access: yes, 2020
Black holes are usually observed to be of stellar-mass or supermassive. By natural extension, there should be a population of Intermediate-Mass Black Holes (IMBHs: with mass between 100 to 106M☉) in the Universe; which has started to been observed.
de Gouveia Dal Pino, Elisabete M.   +1 more
core   +1 more source

Tidal capture of stars by intermediate-mass black holes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
Recent X-ray observations and theoretical modelling have made it plausible that some ultraluminous X-ray sources (ULX) are powered by intermediate-mass black holes (IMBHs). N-body simulations have also shown that runaway merging of stars in dense star clusters is a way to form IMBHs.
Baumgardt, H.   +3 more
openaire   +5 more sources

A Search for Gravitational Waves from Perturbed Black Hole Ringdowns in LIGO Data [PDF]

open access: yes, 2008
According to General Relativity a perturbed black hole will return to a stable configuration by the emission of gravitational radiation in a superposition of quasi-normal modes. Such a perturbation will occur due to the coalescence of a black hole binary,
Goggin, Lisa Maria
core   +1 more source

The Black Hole Mass Function: From Stellar to Supermassive [PDF]

open access: yes, 2023
The overall purpose of this thesis is to establish the black hole (BH) mass function, from stellar to supermassive. We divide this work into two: 1) the stellar black hole mass function covering the mass range $m_{\bullet} \sim 5 - 150 \ M_{\odot}$; 2 ...
SICILIA, ALEXANDER MARC
core  

The Nature of the IMBH Candidate CXO J133815.6+043255: High-frequency Radio Emission

open access: yesThe Astrophysical Journal, 2023
The ultraluminous X-ray source CXO J133815.6+043255 is a strong candidate for a bona fide intermediate-mass black hole residing in the outskirts of NGC 5252.
Krista Lynne Smith   +2 more
doaj   +1 more source

Growth of Intermediate‐Mass Black Holes in Globular Clusters [PDF]

open access: yesThe Astrophysical Journal, 2004
We present results of numerical simulations of sequences of binary-single scattering events of black holes in dense stellar environments. The simulations cover a wide range of mass ratios from equal mass objects to 1000:10:10 solar masses and compare purely Newtonian simulations to simulations in which Newtonian encounters are interspersed with ...
Gultekin, Kayhan   +2 more
openaire   +2 more sources

Intermediate-mass black hole incubators

open access: yesAstronomy & Astrophysics
Context. The stellar dynamical evolution of massive star clusters formed during starburst periods leads to the segregation of ≳104 M⊙ stellar-mass black hole sub-clusters in their centres.
Haas Jaroslav   +2 more
doaj   +1 more source

THE CLOSE STELLAR COMPANIONS TO INTERMEDIATE-MASS BLACK HOLES [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT When embedded in dense cluster cores, intermediate-mass black holes (IMBHs) acquire close stellar or stellar-remnant companions. These companions are not only gravitationally bound, but also tend to hierarchically isolate from other cluster stars through series of multibody encounters.
Morgan MacLeod   +2 more
openaire   +2 more sources

On the dynamic formation of accreting intermediate-mass black holes [PDF]

open access: yesAstronomical & Astrophysical Transactions, 2007
We compute the probability that intermediate mass black holes (IMBHs) capture companions due to dynamical interactions and become accreting sources, and explore the possibility that the accreting IMBHs would appear as ultra-luminous X-ray sources (ULXs). We focus on IMBHs originating from low-metallicity Population III stars.
Kuranov, A. G.   +4 more
openaire   +2 more sources

The Formation of Intermediate-mass Black Holes in Galactic Nuclei

open access: yesThe Astrophysical Journal Letters, 2022
Abstract Most stellar evolution models predict that black holes (BHs) should not exist above approximately 50–70 M ⊙, the lower limit of the pair-instability mass gap. However, recent LIGO/Virgo detections indicate the existence of BHs with masses at and above this threshold.
Sanaea C. Rose   +3 more
openaire   +2 more sources

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