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Supermassive Black Holes

open access: yes, 2023
Written by an international leader in the field, this is a coherent and accessible account of the concepts that are now vital for understanding cutting-edge work on supermassive black holes. These include accretion disc misalignment, disc breaking and tearing, chaotic accretion, the merging of binary supermassive holes, the demographics of supermassive
Andrew R. King
openaire   +2 more sources

Evidence for heavy-seed origin of early supermassive black holes from a z ≈ 10 X-ray quasar

Nature Astronomy, 2023
Observations of quasars reveal that many supermassive black holes (BHs) were in place less than 700 Myr after the Big Bang. However, the origin of the first BHs remains a mystery.
Á. Bogdán   +11 more
semanticscholar   +1 more source

Supermassive black holes

High-Energy Astrophysics, 2003
Andrew King, G. Andrewkin, Andrew King
openaire   +2 more sources

Observational constraints on the feeding of supermassive black holes

Nature Astronomy, 2019
Supermassive black holes grow at the centre of galaxies in consonance with them. In this Review Article, we discuss the mass-feeding mechanisms that lead to this growth in active galactic nuclei (AGNs), focusing on constraints derived from observations ...
T. Storchi-Bergmann, A. Schnorr-Müller
semanticscholar   +1 more source

Supermassive Primordial Black Holes for Nano-Hertz Gravitational Waves and High-redshift JWST Galaxies

Research in Astronomy and Astrophysics
Recently, observational hints for supermassive black holes have been accumulating, prompting the question: Can primordial black holes (PBHs) be supermassive, particularly with masses M ≳ 109 M ⊙?
Hai-Long Huang   +4 more
semanticscholar   +1 more source

A new class of flares from accreting supermassive black holes

Nature Astronomy, 2019
Accreting supermassive black holes (SMBHs) can exhibit variable emission across the electromagnetic spectrum and over a broad range of timescales. The variability of active galactic nuclei (AGNs) in the ultraviolet and optical is usually at the few tens ...
B. Trakhtenbrot   +28 more
semanticscholar   +1 more source

Supermassive Black Holes

2013
This chapter analyzes formation mechanisms for supermassive black holes, their observable characteristics, and their interactions with their host galaxies and the wider Universe. A black hole is the end product of the complete gravitational collapse of a material object, such as a massive star. It is surrounded by a horizon from which even light cannot
Abraham Loeb, Steven R. Furlanetto
openaire   +1 more source

Supermassive Black Holes

2014
This chapter focuses on supermassive black holes, which are sometimes abbreviated “SMBHs.” Stellar-mass black holes are clearly common consequences of stellar evolution, but they are not the only kinds of black holes identified by astronomers. Much more massive black holes are located in the center of many, and perhaps all, galaxies.
openaire   +2 more sources

The effect of nuclear gas distribution on the mass determination of supermassive black holes

, 2017
Supermassive black holes reside in the nuclei of most galaxies. During their active episodes, black holes are powered by accretion discs where gravitational energy is converted into radiation1.
J. Mejía-restrepo   +4 more
semanticscholar   +1 more source

Supermassive black holes

2018
AbstractThe supermassive BH at the center of our Galaxy. Formation and evolution of SMBH binaries. Perspective for detection with LISA. Extreme mass ratio inspirals (EMRIs). Computation of the EMRI’s waveform with the self-force approach. Stochastic backgrounds of gravitational waves produced by SMBH binaries. Perspective for detection at pulsar timing
openaire   +1 more source

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