Results 121 to 130 of about 166,156 (289)

Why are AGN found in High Mass Galaxies?

, 2008
We use semi-analytic models implemented in the Millennium Simulation to analyze the merging histories of dark matter haloes and of the galaxies that reside in them.
Barger, Bower, Boylan-Kolchin, Colless, Croton, De Lucia, De Lucia, De Lucia, Duschl, Ferrarese, Gebhardt, Guinevere Kauffmann, Haehnelt, Hasan, Hasinger, Heckman, Ho, Hopkins, Hopkins, Hopkins, Jiang, Kang, Kauffmann, Kauffmann, Kormendy, Lan Wang, Li, Magorrian, McCarthy, Merloni, Mihos, Richards, Spergel, Springel, Springel, Steffen, Volonteri, Wang, Weinmann, Wyithe, Zheng   +40 more
core   +1 more source

Tests of Gravity Theories Using Supermassive Black Holes [PDF]

, 2017
Scalar-tensor theories of gravity generally violate the strong equivalence principle, namely that compact objects have a suppressed coupling to the scalar force, which causes them to fall slower.
Jeremy Sakstein, B. Jain, J. Heyl, L. Hui   +3 more
semanticscholar   +1 more source

Phenomenological Analogies in Black Hole Systems of all Masses

, 2004
I review the progress made on the physics of relativistic jets from black hole systems in the context of the analogy between AGN and microquasars that was proposed one decade ago.
Mirabel, I. F.
core   +2 more sources

A FUNDAMENTAL EQUATION FOR SUPERMASSIVE BLACK HOLES [PDF]

International Journal of Modern Physics D, 2011
We developed a theoretical model that is able to give a common origin to the correlations between the mass M• of supermassive black holes and the mass, velocity dispersion, kinetic energy and momentum parameter of the corresponding host galaxies. Our model is essentially based on the transformation of the angular momentum of the interstellar material,
Feoli A., Mancini L.
openaire   +3 more sources

Supermassive black holes in disc-dominated galaxies outgrow their bulges and co-evolve with their host galaxies [PDF]

, 2017
The deep connection between galaxies and their supermassive black holes is central to modern astrophysics and cosmology. The observed correlation between galaxy and black hole mass is usually attributed to the contribution of major mergers to both.
B. Simmons, B. Simmons, R. Smethurst, C. Lintott   +3 more
semanticscholar   +1 more source

Is there life inside black holes?

, 2011
Bound inside rotating or charged black holes, there are stable periodic planetary orbits, which neither come out nor terminate at the central singularity. Stable periodic orbits inside black holes exist even for photons. These bound orbits may be defined
Balek V, Bičák J, Carter B, Chandrasekhar S, Dotti G, Frolov V P, Grunau S Kagramanova V, Kardashev N S, Landau L D, Misner C W, Novikov I D, Olivares M Saavedra J Leiva C Villanueva J R, Pugliese D Quevedo H Ruffini R, V I Dokuchaev, Wald R M, Zeldovich Ya B   +15 more
core   +1 more source

The first supermassive black holes [PDF]

, 2017
We briefly review the historical development of the ideas regarding the first supermassive black hole seeds, the physics of their formation and radiative feedback, recent theoretical and observational progress, and our outlook for the future.
Aaron Smith, V. Bromm, A. Loeb
semanticscholar   +1 more source

The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys

Advances in Astronomy, 2012
Significant progress has been made in the last few years on understanding how supermassive black holes form and grow. In this paper, we begin by reviewing the spectral signatures of active galactic nuclei (AGN) ranging from radio to hard X-ray ...
Ezequiel Treister, C. Megan Urry
doaj   +1 more source

A population of luminous accreting black holes with hidden mergers

, 2018
Major galaxy mergers are thought to play an important part in fuelling the growth of supermassive black holes. However, observational support for this hypothesis is mixed, with some studies showing a correlation between merging galaxies and luminous ...
A DasGupta, A Sesana, AD Goulding, AK Weigel, Anna Weigel, B Groves, Benny Trakhtenbrot, C Leitherer, C Ricci, C Ricci, C Villforth, C-L Hung, Chao-Ling Hung, Claudio Ricci, D Kocevski, D Narayanan, D Patton, David B. Sanders, E Bertin, E Glikman, E Massaro, Ezequiel Treister, G Kauffmann, G Vaucouleurs de, GF Snyder, H Fu, J Brinchmann, J Kormendy, Jessica R. Lu, JL Donley, JPW Verbiest, Kevin Schawinski, KN Abazajian, L Blecha, L Mayer, Laura Blecha, Lia F. Sartori, LK Hunt, M Barden, M Koss, M Koss, M Koss, Michael J. Koss, MP Véron-Cetty, MR Blanton, MR Blanton, NA Grogin, P Jonsson, P Jonsson, PF Hopkins, PF Hopkins, Phillip Bernhard, PR Capelo, R Chary, R Narayan, RI Davies, Richard Mushotzky, RN Lang, RS Barrows, S Haan, S Wassenhove Van, Sylvain Veilleux, T Matteo Di, U Vivian, V Springel, V Springel, WH Baumgartner, Y Ohyama, Y Tang, Y-Y Chang   +69 more
core   +1 more source

Supermassive black holes in the EAGLE Universe : revealing the observables of their growth. [PDF]

, 2016
We investigate the evolution of supermassive black holes in the ‘Evolution and Assembly of GaLaxies and their Environments’ (EAGLE) cosmological hydrodynamic simulations. The largest of the EAGLE volumes covers a (100 cMpc)3 and includes state-of-the-art
Y. Rosas-Guevara, R. Bower, J. Schaye, S. McAlpine, Claudio Dalla-Vecchia, C. Frenk, M. Schaller, T. Theuns   +7 more
semanticscholar   +1 more source