Results 111 to 120 of about 7,819 (229)

Capture Rates of Compact Objects by Supermassive Black Holes [PDF]

open access: yes, 2006
8 pages, 3 figures; accepted for publication in PRDCapture rates of compact objects were calculated by using a recent solution of the Fokker-Planck equation in energy-space, including two-body resonant effects.
Regimbau, Tania   +2 more
core   +1 more source

A Comparison of the X-Ray Polarimetric Properties of Stellar and Supermassive Black Holes

open access: yesThe Astrophysical Journal
X-ray polarization provides a new way to probe accretion geometry in black hole systems. If the accretion geometry of black holes is similar regardless of mass, we should expect the same to be true of their polarization properties.
M. Lynne Saade   +3 more
doaj   +1 more source

Close supermassive binary black holes [PDF]

open access: yesNature, 2010
Nature in press. 4 pages, 1 figure [Title, abstract, text, and references shortened to conform to journal requirements]
openaire   +3 more sources

Multiple supermassive black holes in galactic bulges [PDF]

open access: yes, 2002
We study the number and interaction rates of supermassive black holes in galactic bulges as predicted by hierarchical models of galaxy formation in which the spheroidal components of galaxies are formed by mergers.
Haehnelt, M. G.   +2 more
core  

Tidal disruption flares from stars on eccentric orbits

open access: yesEPJ 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

Supermassive black holes with stellar companions

open access: yesAIP Conference Proceedings, 1994
Low‐mass stars in close orbits around supermassive black holes in active galactic nuclei (AGN) may provide an important signature for testing the existence of supermassive black holes. Here we discuss how such systems can form by being ‘‘ground down’’ by their interaction with an AGN accretion disk and discuss the peculiarities of such binaries with ...
Podsiadlowski, P, Rees, M
openaire   +2 more sources

The Black Hole Spin Controversy [PDF]

open access: yes, 2012
Astrophysical black holes are the simplest possible objects. They are completely described by only two parameters in general relativity, their mass and the specific angular momentum, spin.
KOLEHMAINEN, MARI,JOHANNA   +1 more
core  

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

open access: yes
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   +3 more
core   +2 more sources

A semi-empirical model to constrain the growth of supermassive black holes [PDF]

open access: yes, 2022
openThe presence of super massive black holes (SMBHs) at the center of galaxies has been proved by the most recent observations. The mass of these SMBHs is found to correlate with a number of properties of the host galaxies and such relations have been ...
CHERUBINI, AGNESE
core  

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