Titans of the early Universe: The Prato statement on the origin of the first supermassive black holes [PDF]
Publications Astronomical Society of Australia, 2018 In recent years, the discovery of massive quasars at $z\sim7$ has provided a striking challenge to our understanding of the origin and growth of supermassive black holes in the early Universe. Mounting observational and theoretical evidence indicates the
T. Woods +32 more
semanticscholar +1 more source
Shadow of rotating and twisting charged black holes with cloud of strings and quintessence
European Physical Journal C: Particles and Fields, 2023 Testing gravity theories is an important and interesting issue in relativistic astrophysics using astrophysical observations. In recent years, Event horizon telescope collaboration provided valuable data from shadow of supermassive black holes located at
Muhammad Zahid +4 more
doaj +1 more source
Orbital Migration of Interacting Stellar Mass Black Holes in Disks around Supermassive Black Holes. II. Spins and Incoming Objects [PDF]
Astrophysical Journal, 2018 The masses, rates, and spins of merging stellar mass binary black holes (BBHs) detected by aLIGO and Virgo provide challenges to traditional BBH formation and merger scenarios.
Amy Secunda +8 more
semanticscholar +1 more source
Gravitational Larmor precession
European Physical Journal C: Particles and Fields, 2023 Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagittarius A* and Messier 87*, we consider test particle motion in the spacetime close to a generic spherical black hole in the ...
Chandrachur Chakraborty +1 more
doaj +1 more source
Looking for ultralight dark matter near supermassive black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 Measurements of the dynamical environment of supermassive black holes (SMBHs) are becoming abundant and precise. We use such measurements to look for ultralight dark matter (ULDM), which is predicted to form dense cores (“solitons”) in the centre of ...
Nitsan Bar +3 more
semanticscholar +1 more source
Supermassive black holes and their feedback effects in the IllustrisTNG simulation [PDF]
Monthly notices of the Royal Astronomical Society, 2017 We study the population of supermassive black holes (SMBHs) and their effects on massive central galaxies in the IllustrisTNG cosmological hydrodynamical simulations of galaxy formation.
R. Weinberger +10 more
semanticscholar +1 more source
Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. IX. 10 New Observations of Reverberation Mapping and Shortened Hβ Lags [PDF]
, 2018 As one paper in a series reporting on a large reverberation mapping campaign of super-Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei (AGNs), we present the results of 10 SEAMBHs monitored spectroscopically during 2015–2017 ...
P. Du +12 more
semanticscholar +1 more source
Global Understanding of Accretion and Ejection around Black Holes
Galaxies, 2022 Accretion and ejection around compact objects, mainly around black holes, both in low mass, and supermassive, is rich and has been studied exhaustively [...]
Santanu Mondal
doaj +1 more source
Fuzzy dark matter soliton cores around supermassive black holes [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We explore the effect of a supermassive black hole (SMBH) on the density profile of a fuzzy dark matter (FDM) soliton core at the centre of a dark matter (DM) halo.
Elliot Y Davies, Philip Mocz
semanticscholar +1 more source
A Candidate Runaway Supermassive Black Hole Identified by Shocks and Star Formation in its Wake
The Astrophysical Journal Letters, 2023 The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind it.
Pieter van Dokkum +15 more
doaj +1 more source