Results 91 to 100 of about 6,310 (180)

The contribution of supermassive black holes in stripped nuclei to the supermassive black hole population of UCDs and galaxy clusters

We use the hydrodynamic EAGLE simulation to predict the numbers and masses of supermassive black holes in remnant nuclei of disrupted galaxies (stripped nuclei) and compare these to confirmed measurements of black holes in observed ultra-compact dwarf ...
Mayes, Rebecca, Drinkwater, Michael, Pfeffer, Joel, Baumgardt, Holger   +3 more
core   +1 more source

Evidence for supermassive black hole binaries

Publications of the Astronomical Society of Australia
Abstract We review the state of the evidence for the existence and observational appearance of supermassive black hole binaries. Such objects are expected from standard hierarchical galaxy evolution to form after two galaxies, each containing a supermassive black hole, have merged, in the centre of the merger remnant.
Martin Gustav Heinrich Krause, Martin Albert Bourne, Silke Britzen, Adi Foord, Jenny Greene, Melanie Habouzit, Maya Horton, Lucio Mayer, Hannah Middleton, Rebecca Nealon, Julia Sisk-Reynés, Christopher Reynolds, Debora Sijacki   +12 more
openaire   +2 more sources

SUPERMASSIVE BLACK HOLE AT THE GALACTIC CENTER

New Results and Actual Problems in Particle & Astroparticle Physics and Cosmology, 2014
We derive an analytical expression of a shadow size as a function of a charge in the Reissner - Nordstr?m (RN) metric. Using the derived expression we consider shadows for negative tidal charges and charges corresponding to naked singularities q=Q2/M2>1, where Q and M are black hole charge and mass, respectively.
openaire   +2 more sources

Disks around merging binary black holes: From GW150914 to supermassive black holes. [PDF]

Phys Rev D, 2018
Khan A, Paschalidis V, Ruiz M, Shapiro SL.   +3 more
europepmc   +1 more source

How to Swallow a Sun. [PDF]

Sci Am, 2017
Cenko SB, Gehrels N.
europepmc   +1 more source

High-redshift supermassive black holes from tiny black hole explosions

Recent observations of the high-redshift universe have uncovered a significant number of active galactic nuclei, implying that supermassive black holes (SMBHs) would have to have been formed at much earlier times than expected.
Kusenko, Alexander, Lu, Yifan, Picker, Zachary S. C., Picker, Zachary SC   +3 more
core   +1 more source

The cosmological history of accretion onto dark halos and supermassive black holes

, 2006
Aims: We investigate the cosmological growth of dark halos and follow the consequences of coeval growth for the accretion history of associated supermassive black holes.
Miller, L., Babic, A., S. M. Croom, Percival, WJ, Percival, Will, Babic, A, L. Miller, W. J. Percival, A. Babić, Croom, S., Croom, SM, Miller, L   +11 more
core   +1 more source

Cosmological evolution of supermassive black holes in galactic centers unveiled by hard X-ray observations. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2015
Ueda Y.
europepmc   +1 more source

Presentation: Supermassive Black Holes: Galaxy Monsters, Presentation

, 2002
Introduction: Black holes with masses of a million to a few billion times the mass of the Sun are believed to be the engines that power nuclear activity in galaxies.
Kormendy, John, Environmental Science Institute   +1 more
core  

Dynamics around supermassive black holes

, 2020
The dynamics of galactic nuclei reflects the presence of supermassive black holes (SBHs) in many ways. Single SBHs act as sinks, destroying a mass in stars equal to their own mass in roughly one relaxation time and forcing nuclei to expand.
Gualandris, A, Merritt, D
core