Results 1 to 10 of about 163,693 (220)

Investigating strong gravitational lensing effects by supermassive black holes with Horndeski gravity [PDF]

European Physical Journal C: Particles and Fields, 2022
We study gravitational lensing in strong-field limit by a static spherically symmetric black hole in quartic scalar field Horndeski gravity having additional hair parameter q, evading the no-hair theorem.
Jitendra Kumar, Shafqat Ul Islam, Sushant G. Ghosh   +2 more
doaj   +2 more sources

Mass Functions of Supermassive Black Holes across Cosmic Time [PDF]

Advances in Astronomy, 2012
The black hole mass function of supermassive black holes describes the evolution of the distribution of black hole mass. It is one of the primary empirical tools available for mapping the growth of supermassive black holes and for constraining ...
Brandon C. Kelly, Andrea Merloni
doaj   +4 more sources

Supermassive primordial black holes from inflation [PDF]

Journal of Cosmology and Astroparticle Physics, 2023
There is controversy surrounding the origin and evolution of our universe's largest supermassive black holes (SMBHs). In this study, we consider the possibility that some of these black holes formed from the direct collapse of primordial density ...
D. Hooper, Aurora Ireland, G. Krnjaic, A. Stebbins   +3 more
semanticscholar   +3 more sources

Close supermassive binary black holes [PDF]

Nature, 2009
It has been proposed that when the peaks of the broad emission lines in active galactic nuclei (AGNs) are significantly blueshifted or redshifted from the systemic velocity of the host galaxy, this could be a consequence of orbital motion of a ...
Gaskell, C. Martin
core   +3 more sources

Supermassive Black Holes

, 2023
Written by an international leader in the field, this is a coherent and accessible account of the concepts that are now vital for understanding cutting-edge work on supermassive black holes.
Andrew R. King
semanticscholar   +2 more sources

Formation of Supermassive Black Holes [PDF]

The Astronomy and Astrophysics Review, 2010
Evidence shows that massive black holes reside in most local galaxies. Studies have also established a number of relations between the MBH mass and properties of the host galaxy such as bulge mass and velocity dispersion.
A Freise, A Heger, A Loeb, A Marconi, A Marconi, A Merloni, A Merloni, A Sesana, A Soltan, AJ Barth, AJ Barth, AM Ghez, AV Gruzinov, B Devecchi, BJ Carr, BJ Carr, C Alcock, C Lacey, CF McKee, CJ Willott, CJ Willott, CL Fryer, D Merritt, D Reed, D Spolyar, DJ Eisenstein, DN Page, E Berti, E Gallo, E Quataert, E Ripamonti, E Ripamonti, EH Wehner, F Hoyle, F Iocco, F Santoro, FC Bosch van den, G Ghisellini, G Lodato, HJ Mo, I Shlosman, J Diemand, J Kormendy, J Magorrian, JA Regan, JC Tan, JC Vernaleo, JE Greene, JF Navarro, JH Wise, JL Johnson, JR Bond, JS Bullock, K Freese, K Gebhardt, K Gebhardt, K Gültekin, K Omukai, K Omukai, KG Arun, L Ferrarese, L Ferrarese, L Ferrarese, L Gao, L Spitzer, LC Ho, M Ajello, M Dijkstra, M Elvis, M Freitag, M Freitag, M Mateo, M Milosavljević, M Ricotti, M Saijo, M Shibata, M Spaans, M Tegmark, M Trenti, M Valluri, M Volonteri, M Volonteri, M Volonteri, M Volonteri, M Volonteri, M Walter, MA Abramowicz, MA Abramowicz, MA Gürkan, MA Gürkan, Marta Volonteri, MC Aller, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Miller, MG Haehnelt, MG Walker, MG Walker, MJ Turk, MS Bovill, MY Khlopov, N Häring, N Yoshida, NY Gnedin, P Côté, P Madau, PC Clark, PF Hopkins, Q Yu, R Decarli, R Salvaterra, R Schneider, R Schödel, RD Blandford, RD Blandford, RK Sheth, RP Kudritzki, S Hawking, S Tremaine, SA Hughes, SDM White, SE Woosley, SF Portegies Zwart, SF Portegies Zwart, SF Portegies Zwart, SL Shapiro, SM Koushiappas, SP Oh, SR Majewski, T Abel, T Ebisuzaki, T Tanaka, TH Greif, TW Baumgarte, V Bromm, V Bromm, V Bromm, V Springel, VR Eke, W Zhang, X Fan, X Fan, X Fan, YB Zeldovich, YB Zel’Dovich, Z Barkat, Z Haiman   +150 more
core   +2 more sources

SuperMassive Black Holes in Bulges [PDF]

The Astrophysical Journal, 2000
We present spatially extended gas kinematics at parsec-scale resolution for the nuclear regions of four nearby disk galaxies, and model them as rotation of a gas disk in the joint potential of the stellar bulge and a putative central black hole.
Alexei V. Filippenko, Daniel H. McIntosh, Gebhardt K., Greg Rudnick, Hans‐Walter Rix, Jorgensen I., Joseph C. Shields, Kormendy J., Luis C. Ho, Marc Sarzi, Monnet G., Nagar N. M., van der Marel R. P., Wallace L. W. Sargent   +13 more
core   +4 more sources

Evolution of supermassive black holes [PDF]

, 2006
Supermassive black holes (SMBHs) are nowadays believed to reside in most local galaxies, and the available data show an empirical correlation between bulge luminosity - or stellar velocity dispersion - and black hole mass, suggesting a single mechanism ...
A. Cattaneo, A. Loeb, A. Marconi, A. Marconi, A. Merloni, A. Streblyanska, A.J. Barth, A.J. Barth, A.M. Ghez, A.M. Ghez, B.J. Carr, C.J. Willott, C.L. Fryer, D.J. Eisenstein, G. Fabbiano, G. Kauffmann, G. Miniutti, G.D. Quinlan, H. Mii, J. Crummy, J. Etherington, J. Magorrian, J. Yoo, J.S.B. Wyithe, J.S.B. Wyithe, K. Gebhardt, L. Ferrarese, L. Ferrarese, M. Elvis, M. Milosavljevic, M. Volonteri, M. Volonteri, M. Volonteri, M.C. Aller, M.C. Begelman, M.G. Haehnelt, N. Häring, P. Madau, Q. Yu, Q. Yu, R. Schödel, R.R. Islam, S. Tremaine, S.L. Shapiro, S.L. Shapiro, S.M. Koushiappas, T. Matteo di, V. Bromm, V. Springel, z. Haiman   +49 more
core   +3 more sources

Signals of merging supermassive black holes in pulsar timing arrays [PDF]

Physical Review Research, 2023
In this work we evaluate whether the gravitational wave background recently observed by a number of different pulsar timing arrays could be due to merging supermassive black hole binaries. We find that for homogeneously distributed primordial black holes
Paul Frederik Depta, K. Schmidt-Hoberg, P. Schwaller, C. Tasillo   +3 more
semanticscholar   +1 more source

Imprints of dark matter on gravitational ringing of supermassive black holes [PDF]

Physics of the Dark Universe, 2022
Gravitational waves emitted from the gravitational ringing of supermassive black holes are important targets to test general relativity and probe the matter environment surrounding such black holes.
Chao Zhang, Tao Zhu, X. Fang, Anzhong Wang   +3 more
semanticscholar   +1 more source