Results 81 to 90 of about 32,361 (211)

Supermassive Black Hole Feedback

, 2019
Understanding the processes that drive galaxy formation and shape the observed properties of galaxies is one of the most interesting and challenging frontier problems of modern astrophysics. We now know that the evolution of galaxies is critically shaped by the energy injection from accreting supermassive black holes (SMBHs). However, it is unclear how
Ruszkowski, Mateusz, Nagai, Daisuke, Zhuravleva, Irina, Brummel-Smith, Corey, Li, Yuan, Hodges-Kluck, Edmund, Yang, Hsiang-Yi Karen, Basu, Kaustuv, Chluba, Jens, Churazov, Eugene, Donahue, Megan, Fabian, Andrew, Faucher-Giguère, Claude-André, GASPARI, MASSIMO, Hlavacek-Larrondo, Julie, McDonald, Michael, McNamara, Brian, Nulsen, Paul, Mroczkowski, Tony, Mushotzky, Richard, Reynolds, Christopher, Vikhlinin, Alexey, Voit, Mark, Werner, Norbert, ZuHone, John, Zweibel, Ellen   +25 more
openaire   +6 more sources

Rotating scalarized supermassive black holes

European Physical Journal C: Particles and Fields
In this study, we investigate rotating black hole solutions within a scalar-Gauss–Bonnet gravity framework that incorporates a squared Gauss–Bonnet term. By employing a quadratic–exponential coupling function between the scalar field and the Gauss–Bonnet
Shoupan Liu, Yunqi Liu, Yan Peng, Cheng-Yong Zhang   +3 more
doaj   +1 more source

Weighing supermassive black holes [PDF]

Nature Astronomy, 2018
A study suggests that the gas clouds in the vicinity of rapidly accreting supermassive black holes are distributed in a planar distribution, impacting the estimation of the mass of the black hole based on the motion of these clouds.
openaire   +1 more source

Differential rotation in compact objects with hyperons and delta isobars

Astronomische Nachrichten, Volume 345, Issue 2-3, February-March 2024.
Abstract Neutron stars may experience differential rotation on short, dynamical timescales following extreme astrophysical events like binary neutron star mergers. In this work, the masses and radii of differentially rotating neutron star models are computed.
Delaney Farrell, Fridolin Weber, Jia Jie Li, Armen Sedrakian   +3 more
wiley   +1 more source

The Formation and Evolution of the First Massive Black Holes

, 2004
The first massive astrophysical black holes likely formed at high redshifts (z>10) at the centers of low mass (~10^6 Msun) dark matter concentrations.
A Cattaneo, A Cavaliere, A Gould, A Heger, A Jenkins, A Kashlinsky, A Kogut, A Lidz, A Soltan, A Songaila, A Venkatesan, A Wandel, AA Thoul, AC Fabian, AJ Barger, AR King, AR King, AW Graham, B Ciardi, B Ciardi, BJ Carr, CF Gammie, CF Gammie, CJ Willott, CL Bennett, CS Kochanek, D Eisenstein, D Galli, D Lynden-Bell, D Lynden-Bell, D Merritt, D Proga, DC Heggie, DE Berk Van den, DM Alexander, DM Alexander, DN Spergel, DQ Lamb, DR Garnett, E Quataert, EE Salpeter, EJM Colbert, ET Vishniac, F Haardt, F Hoyle, F Palla, F Walter, FA Rasio, G Efstathiou, G Efstathiou, G Kauffmann, G Quinlan, GA Shields, GJ Wasserburg, GL Granato, GM Fuller, GP Holder, GT Richards, H Baumgardt, H Kang, H Kang, H Netzer, H Susa, H Zhao, HM Lee, I Igumenshchev, I Shlosman, J Arons, J Binney, J Comerford, J Goodman, J Magorrian, J Miralda-Escudé, J Silk, J Silk, J Stone, J Tumlinson, J-H Woo, JA Sellwood, JA Tyson, JE Gunn, JF Navarro, JM Shull, JM Stone, JP Ostriker, K Gebhardt, K Gebhardt, K Menou, K Menou, L Ciotti, L Ciotti, L Ferrarese, L Ferrarese, L Ferrarese, L Hui, LL Spitzer Jr, M Dijkstra, M Elvis, M Fukugita, M Kaplinghat, M Milosavljevic, M Saijo, M Shibata, M Tegmark, M Vestergaard, M Vestergaard, M Volonteri, M Zaldarriaga, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MC Begelman, MG Haehnelt, MG Haehnelt, MG Haehnelt, MG Haehnelt, MJ Kukula, MJ Rees, MJ Rees, NI Shakura, NY Gnedin, NY Gnedin, NY Gnedin, O Blaes, P Hut, P Kaaret, P Madau, P Madau, P Madau, P Madau, P Martini, P Martini, P McDonald, P Monaco, P Salucci, P Valageas, P Väisänen, PA Shaver, PJ Armitage, PR Shapiro, PR Shapiro, Q Yu, Q Yu, R Barkana, R Barkana, R Cen, R Cen, RD Blandford, RD Blandford, RF Mushotzky, RH Becker, RK Islam, RK Sheth, RL White, RP Marel Van der, RP Marel Van der, RP Marel Van der, RV Wagoner, S Croom, S Kaspi, S Lepp, S Wyithe, S Wyithe, S Wyithe, S Wyithe, SA Hughes, SDM White, SE Woosley, SF Portegies Zwart, SL Shapiro, SL Shapiro, SP Oh, SP Oh, SP Oh, SP Oh, SR Heap, T Abel, T Abel, T Abel, T Abel, T Hirasawa, T Kitayama, T Matsuda, T Matteo Di, T Miyaji, T Theuns, TA Small, V Bromm, V Bromm, V Bromm, WC Saslaw, WH Press, X Fan, X Fan, X Fan, X Fan, X Wu, YB Zel’dovich, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman, Z Haiman   +214 more
core   +1 more source

Supermassive Black Holes

, 2007
26 pages, 15 figures, to appear in "Kerr Spacetime: Rotating Black Holes in General Relativity" eds. D.L. Wiltshire, M. Visser and S.M. Scott, (Cambridge Univ. Press)
openaire   +2 more sources

Non-linearly scalarized supermassive black holes

European Physical Journal C: Particles and Fields
In this study, we investigate a nonlinear mechanism driving the formation of scalarized rotating black holes within a scalar-Gauss–Bonnet gravity framework that includes an additional squared Gauss–Bonnet term.
Shoupan Liu, Yunqi Liu, Yan Peng, Cheng-Yong Zhang   +3 more
doaj   +1 more source

Consequences of gravitational radiation recoil [PDF]

, 2004
Coalescing binary black holes experience an impulsive kick due to anisotropic emission of gravitational waves. We discuss the dynamical consequences of the recoil accompanying massive black hole mergers.
Binggeli B., Binggeli B., Daniel E. Holz, David Merritt, Dehnen W., Fitchett M. J., Marc Favata, Milo Milosavljevi, Scott A. Hughes, Webbink R. F.   +9 more
core   +3 more sources

Interaction of Supermassive Black Holes with their Stellar and Dark Matter Environments

, 2004
A review of recent theoretical work on the interactions of supermassive single and binary black holes with their nuclear environments, highlighting ways in which the observed structure of nuclei can be used to constrain the formation history of black ...
Merritt, David
core   +3 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