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Fast-moving stars around an intermediate-mass black hole in ω Centauri. [PDF]
NatureBlack holes have been found over a wide range of masses, from stellar remnants with masses of 5-150 solar masses (Msun), to those found at the centers of galaxies with $M>10^5$ Msun. However, only a few debated candidate black holes exist between 150 and
Häberle M +17 more
europepmc +6 more sources
Astronomy & AstrophysicsAims. In this study, we investigate the dynamics of intermediate-mass black hole (IMBH) binaries within nuclear star clusters (NSCs) that contain a population of stellar-mass black holes (BHs).
Khan Fazeel Mahmood +6 more
doaj +3 more sources
An Intermediate-mass Black Hole Hidden behind Thick Obscuration
The Astrophysical JournalRecent models suggest approximately half of all accreting supermassive black holes (SMBHs; M _BH ≳ 10 ^5 M _⊙ ) are expected to undergo intense growth phases behind Compton-thick ( N _H > 1.5 × 10 ^24 cm ^−2 ) veils of obscuring gas.
Peter G. Boorman +14 more
doaj +5 more sources
Rapid Intermediate-mass Black Hole Formation via Runaway Mergers of Black Holes
The Astrophysical Journal LettersObservations indicate that supermassive black holes in high-redshift galaxies formed on timescales far shorter than classical growth models allow. One hypothesis suggests intermediate-mass black hole (IMBH) seeds as an efficient growth channel.
Yining Sun, Long Wang
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Intermediate-Mass Black Holes [PDF]
Annual Review of Astronomy and Astrophysics, 2020 We describe ongoing searches for intermediate-mass black holes with M BH ≈ 10–10 5 M ⊙ . We review a range of search mechanisms, both dynamical and those that rely on accretion signatures.
Greene, Jenny E. +2 more
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Intermediate-mass black holes and the Fundamental Plane of black hole accretion
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT We present new 5 GHz Very Large Array observations of a sample of eight active intermediate-mass black holes with masses 104.9 M⊙ < M < 106.1 M⊙ found in galaxies with stellar masses M* < 3 × 109 M⊙. We detected five of the eight sources at high significance.
Kayhan Gültekin +9 more
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INTERMEDIATE-MASS BLACK HOLES [PDF]
International Journal of Modern Physics D, 2004 The mathematical simplicity of black holes, combined with their links to some of the most energetic events in the universe, means that black holes are key objects for fundamental physics and astrophysics. Until recently, it was generally believed that black holes in nature appear in two broad mass ranges: stellar-mass (M~3–20 M⊙), which are produced ...
Miller, M. Coleman, Colbert, E. J. M.
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Partial Tidal Disruptions of Main-sequence Stars by Intermediate-mass Black Holes
The Astrophysical Journal, 2023 We study close encounters of a 1 M _⊙ middle-age main-sequence star (modeled using MESA) with massive black holes through hydrodynamic simulations, and explore in particular the dependence of the outcomes on the black hole mass.
Fulya Kıroğlu +5 more
doaj +1 more source
Constraints on Galactic intermediate mass black holes [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 Intermediate Mass Black Holes (IMBHs; 10^1.3-5 M_sun) are thought to form as relics of Population III stars or from the runaway collapse of stars in young clusters; their number and very existence are uncertain. We ran N-body simulations of Galactic IMBHs, modelling them as a halo population distributed according to a Navarro, Frenk & White (NFW ...
Mapelli, M., FERRARA, ANDREA, Rea, N.
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Constraining a Companion of the Galactic Center Black Hole Sgr A*
The Astrophysical Journal, 2023 We use 23 yr of astrometric and radial velocity data on the orbit of the star S0-2 to constrain a hypothetical intermediate-mass black hole orbiting the massive black hole Sgr A* at the Galactic center.
Clifford M. Will +6 more
doaj +1 more source