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Mass Functions of Supermassive Black Holes across Cosmic Time [PDF]

open access: yesAdvances in Astronomy, 2012
The black hole mass function of supermassive black holes describes the evolution of the distribution of black hole mass. It is one of the primary empirical tools available for mapping the growth of supermassive black holes and for constraining ...
Brandon C. Kelly, Andrea Merloni
doaj   +4 more sources

Close supermassive binary black holes [PDF]

open access: yesNature, 2009
It has been proposed that when the peaks of the broad emission lines in active galactic nuclei (AGNs) are significantly blueshifted or redshifted from the systemic velocity of the host galaxy, this could be a consequence of orbital motion of a ...
Gaskell, C. Martin
core   +3 more sources

Formation of Supermassive Black Holes [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2010
Evidence shows that massive black holes reside in most local galaxies. Studies have also established a number of relations between the MBH mass and properties of the host galaxy such as bulge mass and velocity dispersion.
A Freise   +150 more
core   +2 more sources

SuperMassive Black Holes in Bulges [PDF]

open access: yesThe Astrophysical Journal, 2000
We present spatially extended gas kinematics at parsec-scale resolution for the nuclear regions of four nearby disk galaxies, and model them as rotation of a gas disk in the joint potential of the stellar bulge and a putative central black hole.
Alexei V. Filippenko   +13 more
core   +4 more sources

Evolution of supermassive black holes [PDF]

open access: yes, 2006
Supermassive black holes (SMBHs) are nowadays believed to reside in most local galaxies, and the available data show an empirical correlation between bulge luminosity - or stellar velocity dispersion - and black hole mass, suggesting a single mechanism ...
A. Cattaneo   +49 more
core   +3 more sources

Origin and growth of primordial black holes

open access: yesPhysics Letters B, 2021
Building on the insight that primordial black holes can arise from the formation and subsequent gravitational collapse of bound states of stable supermassive elementary particles during the early radiation era, we offer a comprehensive picture describing
Krzysztof A. Meissner, Hermann Nicolai
doaj   +1 more source

The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective

open access: yesUniverse, 2022
Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes.
Vivian U
doaj   +1 more source

The ngEHT’s Role in Measuring Supermassive Black Hole Spins

open access: yesGalaxies, 2022
While supermassive black-hole masses have been cataloged across cosmic time, only a few dozen of them have robust spin measurements. By extending and improving the existing Event Horizon Telescope (EHT) array, the next-generation Event Horizon Telescope (
Angelo Ricarte   +4 more
doaj   +1 more source

SUPERMASSIVE SEEDS FOR SUPERMASSIVE BLACK HOLES [PDF]

open access: yesThe Astrophysical Journal, 2013
9 pages, 2 figures; accepted for publication in ...
Johnson, Jarrett L.   +3 more
openaire   +2 more sources

An Upper Limit on the Charge of the Black Hole Sgr A* from EHT Observations

open access: yesThe Astrophysical Journal, 2023
The Event Horizon Telescope (EHT) recently released an image of the supermassive black hole Sgr A* showing an angular shadow diameter d _sh = 48.7 ± 7 μ as and Schwarzschild shadow deviation $\delta =-{0.08}_{-0.09}^{+0.09}\,(\mathrm{VLTI})$ , $-{0.04}_{-
Sushant G. Ghosh, Misba Afrin
doaj   +1 more source

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