Results 71 to 80 of about 2,217,119 (170)

The formation of satellite galaxies and their associated black holes [PDF]

, 2006
Not ...
Libeskind, Noam Isaac
core  

Black hole attractors and the entropy function in four- and five-dimensional N=2 supergravity [PDF]

, 2007
Extremal black holes in theories of gravity coupled to abelian gauge fields and neutral scalars, such as those arising in the low-energy description of compactifications of string theory on Calabi-Yau manifolds, exhibit the attractor phenomenon: on the ...
Perz, Jan
core   +1 more source

Formation of Merging Stellar-mass Black Hole Binaries by Gravitational-wave Emission in Active Galactic Nucleus Disks

The Astrophysical Journal
Many stellar-mass black holes (sBHs) are expected to orbit supermassive black holes at galactic centers. For galaxies with active galactic nuclei, it is likely that the sBHs reside in a disk.
Barak Rom, Re’em Sari, Dong Lai
doaj   +1 more source

Supermassive black holes : the local supermassive black hole mass function [PDF]

, 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 ...
Vika, Marina
core   +2 more sources

Enhancing the rate of tidal disruptions of stars by a self-gravitating disc around a massive central black hole

EPJ Web of Conferences, 2012
We further study the idea that a self-gravitating accretion disc around a supermassive black hole can increase the rate of gradual orbital decay of stellar trajectories (and hence tidal disruption events) by setting some stars on eccentric trajectories ...
Šubr L., Karas V.
doaj   +1 more source

Strong deflection gravitational lensing by a modified Hayward black hole

European Physical Journal C: Particles and Fields, 2017
A modified Hayward black hole is a nonsingular black hole. It is proposed that it would form when the pressure generated by quantum gravity can stop matter’s collapse as the matter reaches the Planck density.
Shan-Shan Zhao, Yi Xie
doaj   +1 more source

Fundamental physics opportunities with the next-generation Event Horizon Telescope

Living Reviews in Relativity
The Event Horizon Telescope (EHT) Collaboration recently published the first images of the supermassive black holes in the cores of the Messier 87 and Milky Way galaxies.
Dimitry Ayzenberg, Lindy Blackburn, Richard Brito, Silke Britzen, Avery E. Broderick, Raúl Carballo-Rubio, Vitor Cardoso, Andrew Chael, Koushik Chatterjee, Yifan Chen, Pedro V. P. Cunha, Hooman Davoudiasl, Peter B. Denton, Sheperd S. Doeleman, Astrid Eichhorn, Marshall Eubanks, Yun Fang, Arianna Foschi, Christian M. Fromm, Peter Galison, Sushant G. Ghosh, Roman Gold, Leonid I. Gurvits, Shahar Hadar, Aaron Held, Janice Houston, Yichao Hu, Michael D. Johnson, Prashant Kocherlakota, Priyamvada Natarajan, Héctor Olivares, Daniel Palumbo, Dominic W. Pesce, Surjeet Rajendran, Rittick Roy, Saurabh, Lijing Shao, Shammi Tahura, Aditya Tamar, Paul Tiede, Frédéric H. Vincent, Luca Visinelli, Zhiren Wang, Maciek Wielgus, Xiao Xue, Kadri Yakut, Huan Yang, Ziri Younsi   +47 more
doaj   +1 more source

Dark matter annihilation via Breit-Wigner enhancement with heavier mediator

Physics Letters B
We propose a new scenario that both the dark matter freeze-out in the early Universe and its possible annihilation for indirect detection around a supermassive black hole are enhanced by a Breit-Wigner resonance.
Yu Cheng, Shao-Feng Ge, Jie Sheng, Tsutomu T. Yanagida   +3 more
doaj   +1 more source

Relativistic Aspects of Accreting Supermassive Black Hole Binaries in Their Natural Habitat: A Review

Galaxies, 2019
In this review a summary is given on recent theoretical work, on understanding accreting supermassive black hole binaries in the gravitational wave (GW)-driven regime. A particular focus is given to theoretical predictions of properties of disks and jets
Roman Gold
doaj   +1 more source

Cold, clumpy accretion onto an active supermassive black hole [PDF]

, 2015
Supermassive black holes in galaxy centres can grow by the accretion of gas, liberating energy that might regulate star formation on galaxy-wide scales.
Oonk, J.B. Raymond, Oonk, J. B. Raymond, G. Mark Voit, Urry, C. Megan, Donahue, Megan, J. B. Raymond Oonk, Alastair C. Edge, Yuan Li, Anaëlle Maury, Stefi A. Baum, Timothy A. Davis, Jeremy S. Sanders, Tracy E. Clarke, Maury, Ana�lle, McNamara, Brian R., Brian R. McNamara, Malcolm N. Bremer, Voit, G. Mark, Wise, Michael W., Megan Donahue, Quillen, Alice C., Louise O. V. Edwards, Helen R. Russell, O'Dea, Christopher P., Davis, Timothy A., Edwards, Louise O.V., Grant R. Tremblay, Combes, Fran�oise, McDonald, Michael A., Alice C. Quillen, Christopher, Philippe, Stephen Hamer, Salom�, Philippe, Christopher P. O’Dea, Sanders, Jeremy S., Andrew C. Fabian, Russell, Helen R., Françoise Combes, Wise, Michael, Hamer, Stephen L., Fabian, Andrew C., Salomé, Philippe, Edwards, Louise O. V., C. Megan Urry, Michael W. Wise, Galván-Madrid, Roberto, Bremer, Malcolm N, Combes, Françoise, Hamer, Stephen, O’Dea, P., O�Dea, Christopher P., Li, Yuan, Michael A. McDonald, Roberto Galván-Madrid, Philippe Salomé, Bremer, Malcolm N., Galv�n-Madrid, Roberto, Clarke, Tracy E., Edge, Alastair C., Baum, Stefi A., Maury, Anaëlle, Tremblay, Grant R.   +61 more
core   +1 more source