Results 101 to 110 of about 166,156 (289)

Gravitational lensing effects of supermassive black holes in cluster environments [PDF]

open access: hybrid, 2022
Guillaume Mahler   +3 more
openalex   +1 more source

Observing supermassive black holes in virtual reality [PDF]

open access: yesComputational Astrophysics and Cosmology, 2018
We present a 360∘ (i.e., 4π steradian) general-relativistic ray-tracing and radiative transfer calculations of accreting supermassive black holes. We perform state-of-the-art three-dimensional general-relativistic magnetohydrodynamical simulations using ...
J. Davelaar   +5 more
semanticscholar   +1 more source

Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity

open access: yesFortschritte der Physik, Volume 72, Issue 4, April 2024.
Abstract Symmergent gravity is an emergent gravity model with an R+R2$R+R^2$ curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no sensitivity to the quadratic curvature term (coefficient of R2$R^2$). With variable scalar
Beyhan Puliçe   +3 more
wiley   +1 more source

Gravitational lensing by a quantum deformed Schwarzschild black hole

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We investigate the weak and strong deflection gravitational lensing by a quantum deformed Schwarzschild black hole and find their observables. These lensing observables are evaluated and the detectability of the quantum deformation is assessed, after ...
Xu Lu, Yi Xie
doaj   +1 more source

Interaction of Supermassive Black Holes with their Stellar and Dark Matter Environments

open access: yes, 2004
A review of recent theoretical work on the interactions of supermassive single and binary black holes with their nuclear environments, highlighting ways in which the observed structure of nuclei can be used to constrain the formation history of black ...
Merritt, David
core   +3 more sources

Differential rotation in compact objects with hyperons and delta isobars

open access: yesAstronomische Nachrichten, Volume 345, Issue 2-3, February-March 2024.
Abstract Neutron stars may experience differential rotation on short, dynamical timescales following extreme astrophysical events like binary neutron star mergers. In this work, the masses and radii of differentially rotating neutron star models are computed.
Delaney Farrell   +3 more
wiley   +1 more source

Signatures of primordial black holes as seeds of supermassive black holes [PDF]

open access: yes, 2017
It is broadly accepted that Supermassive Black Holes (SMBHs) are located in the centers of most massive galaxies, although there is still no convincing scenario for the origin of their massive seeds.
J. Bernal   +3 more
semanticscholar   +1 more source

Shadow of a rotating squashed Kaluza-Klein black hole

open access: yesJournal of High Energy Physics, 2019
We study the shadow of a rotating squashed Kaluza-Klein (KK) black hole and the shadow is found to possess distinct properties from those of usual rotating black holes.
Fen Long   +3 more
doaj   +1 more source

Mechanism for the Suppression of Intermediate-Mass Black Holes

open access: yes, 2010
A model for the formation of supermassive primordial black holes in galactic nuclei with the simultaneous suppression of the formation of intermediate-mass black holes is presented. A bimodal mass function for black holes formed through phase transitions
A. D. Dolgov   +39 more
core   +1 more source

Electromagnetic Emission from Supermassive Binary Black Holes Approaching Merger [PDF]

open access: yesAstrophysical Journal, 2018
We present the first relativistic prediction of the electromagnetic emission from the surrounding gas of a supermassive binary black hole system approaching merger.
Stéphane d'Ascoli   +5 more
semanticscholar   +1 more source

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