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Related papers: Black hole fueling in galaxy mergers: A high-resol…

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We study supermassive black holes (BHs) in merging galaxies, using a suite of hydrodynamical simulations with very high spatial (~10 pc) and temporal (~1 Myr) resolution, where we vary the initial mass ratio, the orbital configuration, and…

Astrophysics of Galaxies · Physics 2015-06-22 Pedro R. Capelo , Marta Volonteri , Massimo Dotti , Jillian M. Bellovary , Lucio Mayer , Fabio Governato

We studied the final phases of galactic mergers, focusing on interactions between supermassive black holes (SMBHs) and the interstellar medium in a central sub-kpc region, using an N-body/hydrodynamics code. This numerical experiment aims…

Astrophysics of Galaxies · Physics 2020-02-26 Takeru Kawaguchi , Naomichi Yutani , Keiichi Wada

Supermassive black holes (BH) at the centres of galaxies can rapidly change their mass and spin by gas accretion and mergers. Using hydrodynamical cosmological simulations, with prescriptions for BH growth and feedback from Active Galactic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Yohan Dubois , Marta Volonteri , Joseph Silk

Supermassive black holes (BH) accrete gas from their surroundings and coalesce with companions during galaxy mergers, and both processes change the BH mass and spin. By means of high-resolution hydrodynamical simulations of galaxies, either…

Astrophysics of Galaxies · Physics 2015-06-18 Yohan Dubois , Marta Volonteri , Joseph Silk , Julien Devriendt , Adrianne Slyz

We describe techniques for incorporating feedback from star formation and black hole accretion into simulations of isolated and merging galaxies. At present, the details of these processes cannot be resolved in simulations on galactic…

Astrophysics · Physics 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist

We investigate the connection between galaxy--galaxy mergers and enhanced black hole (BH) growth using the cosmological hydrodynamical EAGLE simulation. We do this via three methods of analysis, investigating: the merger fraction of AGN,…

We perform hydrodynamical simulations of major galaxy mergers using new methods for calculating the growth of massive black holes (BH) in galactic nuclei and their impact on the surrounding galaxy. We model BH growth by including a subgrid…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Jackson DeBuhr , Eliot Quataert , Chung-Pei Ma , Philip Hopkins

We study the growth of massive black holes (BH) in galaxies using smoothed particle hydrodynamic simulations of major galaxy mergers with new implementations of BH accretion and feedback. The effect of BH accretion on gas in its host galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Jackson DeBuhr , Eliot Quataert , Chung-Pei Ma

We present post-Newtonian $N$-body simulations on mergers of accreting stellar-mass black holes (BHs), where such general relativistic effects as the pericenter shift and gravitational wave (GW) emission are taken into consideration. The…

Astrophysics of Galaxies · Physics 2016-09-07 Hiromichi Tagawa , Masayuki Umemura , Naoteru Gouda

We study gas inflows onto supermassive black holes using hydrodynamics simulations of isolated galaxies and idealized galaxy mergers with an explicit, multiphase interstellar medium (ISM). Our simulations use the recently developed ISM and…

Supermassive black hole dynamics during galaxy mergers is crucial in determining the rate of black hole mergers and cosmic black hole growth. As simulations achieve higher resolution, it becomes important to assess whether the black hole…

We use hydrodynamical simulations to study the color transformations induced by star formation and active galactic nuclei (AGN) during major mergers of spiral galaxies. Our modeling accounts for radiative cooling, star formation, and…

Astrophysics · Physics 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist

We present general relativistic magnetohydrodynamic simulations of merging equal-mass, spinning black holes embedded in an equatorial thin slab of magnetized gas. We evolve black holes either non-spinning, with spins aligned to the orbital…

High Energy Astrophysical Phenomena · Physics 2024-05-31 Giacomo Fedrigo , Federico Cattorini , Bruno Giacomazzo , Monica Colpi

We study the connection between the large-scale dynamics and the gas fueling toward a central black hole via the analysis of a Milky Way-like simulation at sub-parsec resolution. This allows us to follow a set of processes at various scales…

Astrophysics of Galaxies · Physics 2015-06-23 Eric Emsellem , Florent Renaud , Frédéric Bournaud , Bruce Elmegreen , Françoise Combes , Jared Gabor

During galaxy mergers the gas falls to the center, triggers star formation, and feeds the rapid growth of supermassive black holes (SMBHs). SMBHs respond to this fueling by supplying energy back to the ambient gas. Numerical studies suggest…

Astrophysics of Galaxies · Physics 2015-06-23 J. P. Naiman , E. Ramirez-Ruiz , J. Debuhr , C. -P. Ma

Using a set of zoomed-in cosmological simulations of high-redshift progenitors of massive galaxies, we isolate and trace the history of gas that is accreted by central supermassive black holes. We determine the origins of the accreted gas,…

Cosmology and Nongalactic Astrophysics · Physics 2013-12-10 Jillian Bellovary , Alyson Brooks , Marta Volonteri , Fabio Governato , Thomas Quinn , James Wadsley

We present a new semi-analytic model for the common growth of black holes (BHs) and galaxies within a hierarchical Universe. The model is tuned to match the mass function of BHs at z=0 and the luminosity functions of active galactic nuclei…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Eyal Neistein , Hagai Netzer

We study accretion rates during the gravitational wave-driven merger of a binary supermassive black hole embedded in an accretion disc, formed by gas driven to the centre of the galaxy. We use 3D simulations performed with PHANTOM, a…

High Energy Astrophysical Phenomena · Physics 2016-02-03 Alice Cerioli , Giuseppe Lodato , Daniel J. Price

Accretion is thought to primarily contribute to the mass accumulation history of supermassive black holes throughout cosmic time. While this may be true at high redshifts, at lower redshifts and for the most massive black holes mergers…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-26 Andrea Kulier , Jeremiah P. Ostriker , Priyamvada Natarajan , Claire N. Lackner , Renyue Cen

Galaxy mergers have long been proposed as a mechanism for funneling gas toward galactic centres, potentially triggering accretion onto supermassive black holes (SMBHs) and igniting active galactic nuclei (AGN). While simulations often…

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