Results 51 to 60 of about 38,906 (246)
Tidal disruption flares from stars on eccentric orbits
EPJ Web of Conferences, 2012 We study tidal disruption and subsequent mass fallback for stars approaching supermassive black holes on bound orbits, by performing three dimensional Smoothed Particle Hydrodynamics simulations with a pseudo-Newtonian potential.
Loeb A., Stone N., Hayasaki K.
doaj +1 more source
Circumbinary discs from tidal disruption events
, 2017 Tidal disruption events, which occur when a star is shredded by the tidal field of a supermassive black hole, provide a means of fueling black hole accretion. Here we show, using a combination of three body orbit integrations and hydrodynamic simulations,
Armitage, Philip J., Coughlin, Eric R.
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Signatures of primordial black holes as seeds of supermassive black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 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. It has been suggested that primordial black holes (PBHs) of masses $\gtrsim 10^{2} M_\odot$ may provide such seeds, which would grow to become SMBHs.
Licia Verde +5 more
openaire +5 more sources
Modeling Polarized Emission from Black Hole Jets: Application to M87 Core Jet
Galaxies, 2017 We combine three-dimensional general-relativistic numerical models of hot, magnetized Advection Dominated Accretion Flows around a supermassive black hole and the corresponding outflows from them with a general relativistic polarized radiative transfer ...
Monika Mościbrodzka
doaj +1 more source
On the High-Energy Neutrino Emission from Active Galactic Nuclei
Universe, 2018 We review observational aspects of the active galactic nuclei and their jets in connection with the detection of high-energy neutrinos by the Antarctic IceCube Neutrino Observatory.
Emma Kun +3 more
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Hierarchical build-up of galactic bulges and the merging rate of supermassive binary black holes
, 2003 The hierarchical build-up of galactic bulges should lead to the build-up of present-day supermassive black holes by a mixture of gas accretion and merging of supermassive black holes.
Begelman M +11 more
core +1 more source
On the location of the supermassive black hole in CTA 102 [PDF]
Astronomy & Astrophysics, 2015 Relativistic jets in active galactic nuclei represent one of the most powerful phenomena in the Universe. They form in the surroundings of the supermassive black holes as a by-product of accretion onto the central black hole in active galaxies. The flow in the jets propagates at velocities close to the speed of light.
J. Anton Zensus +6 more
openaire +6 more sources
Observational evidence for a connection between SMBHs and dark matter haloes [PDF]
, 2004 We investigate the relation between circular velocity vc and bulge velocity dispersion sigma in spiral galaxies, based on literature data and new spectroscopic observations. We find a strong, nearly linear vc-sigma correlation with a negligible intrinsic
Baes, Maarten +4 more
core +2 more sources
A DISPLACED SUPERMASSIVE BLACK HOLE IN M87 [PDF]
The Astrophysical Journal, 2010 ApJ Letters ...
David J. Axon +5 more
openaire +3 more sources
Do Moderate-Luminosity Active Galactic Nuclei Suppress Star Formation? [PDF]
, 2009 The growth of supermassive black holes and their host galaxies are thought to be linked, but the precise nature of this symbiotic relationship is still poorly understood. Both observations and simulations of galaxy formation suggest that the energy input
Adelman-McCarthy +36 more
core +4 more sources