Results 11 to 20 of about 206,403 (340)
Initial mass function of intermediate mass black hole seeds [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 We study the Initial Mass Function (IMF) and host halo properties of Intermediate Mass Black Holes (IMBH, 10^{4-6} Msun) formed inside metal-free, UV illuminated atomic cooling haloes (virial temperature T_vir > 10^4 K) either via the direct collapse of ...
Ferrara, A. +3 more
core +7 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
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.
Yuqing Lou, Yihong Wu
openalex +3 more sources
Where are the Intermediate Mass Black Holes? [PDF]
, 2019 Science white paper #196 submitted to the Astro2020 Decadal ...
Jillian Bellovary +9 more
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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
openaire +2 more sources
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
openaire +3 more sources
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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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
openaire +3 more sources
Radio Emission from an Ultraluminous X-Ray Source [PDF]
, 2003 The physical nature of ultraluminous x-ray sources is uncertain. Stellar mass black holes with beamed radiation and intermediate mass black holes with isotropic radiation are two plausible explanations.
Corbel, Stephane +3 more
core +3 more sources