Results 111 to 120 of about 5,650 (230)

Follow the Mass—A Concordance Picture of Tidal Disruption Events

The Astrophysical Journal
Three recent global simulations of tidal disruption events (TDEs) have produced, using different numerical techniques and parameters, very similar pictures of their dynamics.
Julian Krolik, Tsvi Piran, Taeho Ryu
doaj   +1 more source

The imprint of the cosmic supermassive black hole growth history on the 21 cm background radiation [PDF]

, 2015
Takamitsu Tanaka, Ryan M. O’Leary, Rosalba Perna   +2 more
openalex   +1 more source

Charged and magnetized particle motion around a static black hole in the Starobinsky–Bel–Robinson gravity

European Physical Journal C: Particles and Fields
In this work we focus on the effects of Starobinsky–Bel–Robinson (SBR) gravity parameter and external magnetic field on the motion of charged test particles and magnetic dipoles moving around a black hole in the selected gravity theory.
Akbar Davlataliev, Bakhtiyor Narzilloev, Ibrar Hussain, Ahmadjon Abdujabbarov, Bobomurat Ahmedov   +4 more
doaj   +1 more source

Growing Supermassive Black Holes in Cosmological Simulations of Structure Formation [PDF]

, 2009
Debora Sijacki, Volker Springel, Martin G. Haehnelt   +2 more
openalex   +1 more source

Supermassive black hole tests of general relativity with eLISA [PDF]

, 2015
Cédric Huwyler, E. K. Porter, Philippe Jetzer   +2 more
openalex   +1 more source

Restrictions on Regularized Fisher and Dilatonic Spacetimes Implied by High-Frequency Quasiperiodic Oscillations Observed in Microquasars and Active Galactic Nuclei

Universe
The Bronnikov generalization of the Fisher naked singularity and Dilatonic black hole spacetimes attracts high interest, as it combines two fundamental transitions of the solutions of Einstein equations.
Jaroslav Vrba, Zdeněk Stuchlík
doaj   +1 more source

Supermassive black holes : the local supermassive black hole mass function

, 2012
Over recent years there has been an increase of the number of secure supermassive black hole (SMBH) detections. These SMBH measurements have lead astronomers to establish well defined empirical relationships between the SMBH mass and some of the properties of the host galaxy.
openaire   +1 more source

Accretion Onto Supermassive Black Hole Binaries

In this chapter, we give an overview of our current understanding of the physics of accreting massive black hole binaries (MBHBs), with a special focus on the latest developments in numerical simulations and General-Relativistic Magnetohydrodynamics (GRMHD) simulations in particular.
Gutiérrez, Eduardo M., Combi, Luciano, Ryan, Geoffrey   +2 more
openaire   +2 more sources

Stellar Black Holes Can “Stretch” Supermassive Black Hole Accretion Disks

The Astrophysical Journal Letters
Abstract Stellar black holes (sBHs) are widely believed to exist in the accretion disks of active galactic nuclei (AGNs). Previous studies often focus on the transient emission produced by embedded sBHs. Here, we explore the possible observational consequences of an AGN accretion disk that contains a population of accreting sBHs ...
Shuying Zhou, Mouyuan Sun, Tong Liu, Jian-Min Wang, Jun-Xian Wang, Yongquan Xue   +5 more
openaire   +3 more sources

Quasars Can Signpost Supermassive Black Hole Binaries

The Astrophysical Journal
Supermassive black holes (SMBHs) are found in the centers of massive galaxies, and galaxy mergers should eventually lead to SMBH mergers. Quasar activity has long been associated with galaxy mergers, so here we investigate if supermassive black hole ...
J. Andrew Casey-Clyde, Chiara M. F. Mingarelli, Jenny E. Greene, Andy D. Goulding, Siyuan Chen, Jonathan R. Trump   +5 more
doaj   +1 more source