Results 61 to 70 of about 37,815 (249)

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

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, Alvise Raccanelli, Joseph Silk, Joseph Silk, Joseph Silk, José Luis Bernal   +5 more
openaire   +5 more sources

Black Holes, Mergers, and the Entropy Budget of the Universe

, 2002
Vast amounts of entropy are produced in black hole formation, and the amount of entropy stored in supermassive black holes at the centers of galaxies is now much greater than the entropy free in the rest of the universe.
Abrahams A M (Binary Black Hole Grand Challenge Alliance Collaboration), Anninos P, Anninos P, Barr S M, Baumgarte T W, Flanagan E E, Holman R, Janka H T, Kamionkowski M, Macchetto E D, Postnov K A, Rees M J, Saijo M, Shibata M, Silk J, Starkman G D, Thomas W Kephart, Tinto M, Totani T, Valageas P, Wilson J R, Y Jack Ng, Yungelson L   +22 more
core   +2 more sources

Extreme Mass Ratio Binary: Radiation reaction and gravitational waveform [PDF]

, 2005
For a successful detection of gravitational waves by LISA, it is essential to construct theoretical waveforms in a reliable manner. We discuss gravitational waves from an extreme mass ratio binary system which is expected to be a promising target of the ...
Barack L, Hughes S A, Hughes S A, Mino Y, Mino Y, Mino Y, Papapetrou A, Poisson E, Yasushi Mino   +8 more
core   +2 more sources

A DISPLACED SUPERMASSIVE BLACK HOLE IN M87 [PDF]

The Astrophysical Journal, 2010
ApJ Letters ...
David J. Axon, David J. Axon, Eric S. Perlman, Andrew Robinson, Dan Batcheldor, David Merritt   +5 more
openaire   +3 more sources

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.
core   +1 more source

The Millennium Galaxy Catalogue: The $M_{bh}$--$L_{spheroid}$ derived supermassive black hole mass function

, 2009
Supermassive black hole mass estimates are derived for 1743 galaxies from the Millennium Galaxy Catalogue using the recently revised empirical relation between supermassive black hole mass and the luminosity of the host spheroid.
Alister W. Graham, Allen, Aller, Balcells, Begelman, Bertin, Cameron, Cao, Caon, Croton, Di Matteo, Driver, Driver, Driver, Driver, Driver, Drory, Ferrarese, Ferrarese, Gallo, Gebhardt, Graham, Graham, Graham, Graham, Graham, Graham, Graham, Graham, Granato, Greene, Hopkins, Hopkins, Hopkins, Hopkins, Hu, Häring, Jochen Liske, Kormendy, Koushiappas, Lauer, Liske, Magorrian, Marconi, Marina Vika, Novak, Pipino, Richards, Robertson, Salucci, Satyapal, Shankar, Shankar, Shankar, Sheth, Shields, Silk, Simon P. Driver, Soltan, Tamura, Tegmark, Tundo, Ueda, Volonteri, Woo, Yu   +65 more
core   +1 more source

Evolution of Supermassive Black Holes [PDF]

, 2007
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 for assembling black holes and forming spheroids in galaxy halos. The evidence is therefore in favour
openaire   +3 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

The Illustris Simulation: Supermassive Black Hole - Galaxy Connection Beyond the Bulge

, 2017
We study the spiral arm morphology of a sample of the local spiral galaxies in the Illustris simulation and explore the supermassive black hole - galaxy connection beyond the bulge (e.g., spiral arm pitch angle, total stellar mass, dark matter mass, and ...
Berrier, Joel C., Hewitt, Ian B., Koval, Lauren E., Mutlu-Pakdil, Burçin, Seigar, Marc S., Treuthardt, Patrick   +5 more
core   +1 more source