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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 MBH≈ 10–105M⊙. We review a range of search mechanisms, both dynamical and those that rely on accretion signatures. We find the following conclusions: ▪ Dynamical and accretion signatures alike point to a high fraction of 109–1010M⊙galaxies hosting black holes with MBH∼ 105M⊙.
Greene, Jenny E. +2 more
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Galaxies, 2023 We study radio and X-ray emissions from intermediate-mass black holes (IMBHs) and explore the unified model for accretion and ejection processes. The radio band survey of IMBH (candidate) hosted galaxies indicates that only a small fraction (∼0.6%) of ...
Xiaolong Yang, Jun Yang
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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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Intermediate-mass black holes in galactic nuclei [PDF]
Proceedings of the International Astronomical Union, 2004 We present the first homogeneous sample of intermediate-mass black hole candidates in active galactic nuclei. Starting with broad-line active nuclei from the Sloan Digital Sky Survey, we use the linewidth-luminosity-mass scaling relation to select a sample of 19 galaxies in the mass range M_BH ~ 8 x 10^4 - 10^6 solar masses.
Greene, Jenny E. +2 more
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The Astrophysical Journal, 2023 The gravitational pull of an unseen companion to a luminous star is well known to cause deviations to the parallax and proper motion of a star. In a previous paper in this series, we argue that the astrometric mission Gaia can identify long-period ...
Jeff J. Andrews
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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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Intermediate-mass black holes in globular clusters [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2012 Abstract 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 dispersion of elliptical galaxies, ‘pseudo-bulges’ and classical bulges of spiral galaxies.
Lou, Yu-Qing, Wu, Yi-Hong
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The Nature of the IMBH Candidate CXO J133815.6+043255: High-frequency Radio Emission
The 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
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The Astrophysical Journal, 2023 We investigate the thermal condensation caused by a massive object that passes through the interstellar medium with high velocity, and propose a mechanism for creating a filamentary gaseous object, or interstellar contrail.
Kanta Kitajima, Shu-ichiro Inutsuka
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Hypervelocity Stars from a Supermassive Black Hole–Intermediate-mass Black Hole Binary [PDF]
The Astrophysical Journal, 2019 Abstract In this paper we consider a scenario in which the currently observed hypervelocity stars in our Galaxy have been ejected from the Galactic center as a result of dynamical interactions with an intermediate-mass black hole (IMBH) orbiting the central supermassive black hole (SMBH).
Alexander Rasskazov +6 more
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