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Stellar Mass Black Holes in Young Galaxies
Galaxies: evolution - Galaxies: stellar content - Stars: massive - Black hole physics - Accretion, accretion disks - Radiative transfer
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2011/10/10
We explore the potential cumulative energy production of stellar mass black holes in early galaxies. Stellar mass black holes may accrete substantially from the higher density interstellar media of pr...
Assessing the redshift evolution of massive black holes and their hosts
quasars: general { galaxies: evolution { galaxies: formation { black hole physics
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2011/9/30
Motivated by recent observational results that focus on high redshift black holes, we explore the effect of scatter and observational biases on the ability to recover the intrinsic properties of the b...
Accretion disks around kicked black holes: Post-kick Dynamics
Accretion disks kicked black holes: Post-kick Dynamics
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2011/9/29
Numerical calculations of merging black hole binaries indicate that asymmetric emission of gravitational radiation can kick the merged black hole at up to thousands of km/s, and a number of systems ha...
Early Black Holes in Cosmological Simulations: Luminosity Functions and Clustering Behaviour
quasars: general — galaxies: active — black hole physics — methods: numerical — galaxies: haloes
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2011/9/29
We examine predictions for the quasar luminosity functions (QLF) and quasar clustering at high redshift (z > 4.75) using MassiveBlack, our new hydrodynamic cosmological simulation which includes a sel...
VHE gamma-ray Emission from Passive Supermassive Black Holes: Constraints for NGC 1399
Emission Passive Supermassive Black Holes
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2011/9/28
Very high energy (VHE; >100 GeV) gamma-rays are expected to be emitted from the vicinity of super-massive black holes (SMBH), irrespective of their activity state. In the magnetosphere of rotating SMB...
Formation of galactic nuclei with multiple supermassive black holes at high redshifts
black hole physics – galaxies:nuclei – galaxies:evolution – galaxies:high redshift – galaxies:kinematics dynamics
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2011/9/27
We examine the formation of groups of multiple supermassive black holes (SMBHs) in gas-poor galactic nuclei due to the high merger rate of galaxies at high redshifts. We calculate the relative likelih...
The interior structure of astronomically realistic rotating black holes 3. Charged black holesThe interior structure of astronomically realistic rotating black holes 3. Charged black holes
The interior structure black holes
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2011/1/13
This paper extends to the case of charged rotating black holes the conformally stationary, axisymmetric, separable solutions presented for uncharged rotating black holes in a companion paper. In the p...
The interior structure of astronomically realistic rotating black holes 2. Uncharged black holes
The interior structure black holes
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2011/1/13
An exact solution is obtained for the interior structure of a uncharged rotating black hole that accretes a collisionless fluid. The solutions are conformally stationary, axisymmetric, and separable. ...
The interior structure of astronomically realistic rotating black holes 1. Motivation and summary
The interior structure black holes
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2011/1/13
This paper motivates, summarizes, and discusses a new set of exact solutions for the interior structure of accreting, rotating black holes. The solutions are conformally stationary, axisymmetric, and...
Black holes in an ultraviolet complete quantum gravity
Black holes ultraviolet complete quantum gravity
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2011/1/13
In this Letter we derive the gravity field equations by varying the action for an ultraviolet complete quantum gravity. Then we consider the case of a static source term and we determine an exact bla...
Electromagnetic extraction of energy from merging black holes
Electromagnetic extraction merging black holes
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2011/1/13
We calculate the evolution of the prompt intrinsic Poynting power generated by merging black holes. Orbiting black holes induce rotation of the space-time. In a presence of magnetic field supported by...
Mechanism for the Suppression of Intermediate-Mass Black Holes
the Suppression Intermediate-Mass Black Holes
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2011/1/11
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 fun...
Probing Intermediate Mass Black Holes With Optical Emission Lines from Tidally Disrupted White Dwarfs
Probing Intermediate Mass Black Holes Optical Emission Lines
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2011/1/13
We calculate the emission line spectrum produced by the debris released when a white dwarf (WD) is tidally disrupted by an intermediate-mass black hole (IMBH; $M\sim 10^{2}-10^{5}\msun$) and we explor...
Stability and QuasinormalModes of Black holes in Tensor-Vector-Scalar theory: Scalar Field Perturbations
Stability QuasinormalModes Black holes Tensor-Vector-Scalar theory Scalar Field Perturbations Tensor-Vector-Scalar theory
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2010/11/16
The imminent detection of gravitational waves will trigger precision tests of gravity through
observations of quasinormal ringing of black holes. While General Relativity predicts just two po-larizat...
Entropy of extremal black holes from entropy of quasiblack holes
quasiblack holes black holes extremal horizon entropy thermodynamics
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2010/11/16
The entropy of extremal black holes (BHs) is obtained using a continuity argument from extremal quasiblack holes (QBHs). It is shown that there exists a smooth limiting transition in which (i) the sys...