English
Related papers

Related papers: Supermassive black hole spin evolution in cosmolog…

200 papers

As a first step towards understanding the angular momentum evolution history of black holes in merging black-hole/neutron-star binaries, we perform population synthesis calculations to track the distribution of accretion histories of…

Astrophysics · Physics 2016-08-30 R. O'Shaughnessy , J. Kaplan , V. Kalogera , K. Belczynski

Growth of the black holes (BHs) from the seeds to supermassive BHs (SMBHs, $\sim\!10^9\,M_\odot$) is not understood, but the mass accretion must have played an important role. We performed two-dimensional radiation hydrodynamics simulations…

Astrophysics of Galaxies · Physics 2021-08-11 Mariko Nomura , Kazuyuki Omukai , Ken Ohsuga

In this paper, we study the formation and dynamical evolution of black hole-black hole (BH-BH) binaries in young star clusters (YSCs), by means of N-body simulations. The simulations include metallicity-dependent recipes for stellar…

Astrophysics of Galaxies · Physics 2015-06-19 Brunetto Marco Ziosi , Michela Mapelli , Marica Branchesi , Giuseppe Tormen

We model the cosmological co-evolution of galaxies and their central supermassive black holes (BHs) within a semi-analytical framework developed on the outputs of the Millennium Simulation (Croton et al., 2006; De Lucia & Blaizot, 2007). In…

Astrophysics · Physics 2008-09-04 F. Marulli , S. Bonoli , E. Branchini , L. Moscardini , V. Springel

The early growth of black holes (BHs) in atomic-cooling halos is likely influenced by feedback on the surrounding gas. While the effects of radiative feedback are well-documented, mechanical feedback, particularly from AGN jets, has been…

High Energy Astrophysical Phenomena · Physics 2024-09-20 Kung-Yi Su , Greg Bryan , Zoltán Haiman

The oral version of this paper summarized Kormendy & Ho 2013, ARA&A, 51, 511. However, earlier speakers at this Symposium worried that selection effects bias the derivation of black hole scaling relations. I therefore added -- and this…

Astrophysics of Galaxies · Physics 2020-05-20 John Kormendy

Massive black holes (MBHs), with masses in the range 10^3-10^8 Msolar, which merge with a companion black hole of similar mass are expected to be the most powerful source of gravitational radiation in the frequency range probed by LISA. MBH…

Astrophysics · Physics 2009-11-11 Marta Volonteri

The tight correlations between the masses of supermassive black holes (BHs) and the properties of their host galaxies suggest that BHs coevolve with galaxies. However, what is the link between BH mass ($M_{\rm BH}$) and the properties of…

Astrophysics of Galaxies · Physics 2023-08-21 Ming-Yang Zhuang , Luis C. Ho

Parsec-scale separation supermassive black hole binaries in the centre of gas-rich galaxy merger remnants could be surrounded by massive circumbinary discs (CBDs). Black hole mass and spin evolution during the gas-rich binary inspiral are…

High Energy Astrophysical Phenomena · Physics 2024-11-13 Martin A. Bourne , Davide Fiacconi , Debora Sijacki , Joanna M. Piotrowska , Sophie Koudmani

We analyze the effect of dissipation on the orbital evolution of supermassive black holes (SMBHs) using high-resolution self-consistent gasdynamical simulations of binary equal- and unequal-mass mergers of disk galaxies. The galaxy models…

We study the evolution of black holes (BHs) on the M_BH-sigma and M_BH-M_bulge planes as a function of time in disk galaxies undergoing mergers. We begin the simulations with the progenitor black hole masses being initially below (Delta log…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Peter H. Johansson , Andreas Burkert , Thorsten Naab

We perform a series of high-resolution 2D hydrodynamical simulations of equal-mass binary black holes (BBHs) embedded in active galactic nucleus (AGN) accretion disks to study whether these binaries can be driven to merger by the…

High Energy Astrophysical Phenomena · Physics 2021-05-05 Ya-Ping Li , Adam M. Dempsey , Shengtai Li , Hui Li , Jiaru Li

Spin evolution of stellar-mass Black Holes (sBHs) embedded in AGN accretion disks is an important process relevant to production of gravitaional waves from binary Black Hole (BBH) merger events through the AGN channel. Since embedded sBHs…

High Energy Astrophysical Phenomena · Physics 2022-03-30 Ya-Ping Li , Yi-Xian Chen , Douglas N. C. Lin , Zhuoxiao Wang

In this work, we investigate an alternative channel for the formation of fast-spinning black hole-neutron star (BHNS) binaries, in which super-Eddington accretion is expected to occur in accreting BHs during the stable mass transfer phase…

High Energy Astrophysical Phenomena · Physics 2024-02-26 Zhen-Han-Tao Wang , Rui-Chong Hu , Ying Qin , Jin-Ping Zhu , Bing Zhang , Shuang-Xi Yi , Qin-Wen Tang , Xin-Wen Shu , Fen Lyu , En-Wei Liang

An accreting massive black hole (MBH) in a galactic nucleus is surrounded by a dense stellar cluster. We analyze and simulate numerically the evolution of a thin accretion disk due to its internal viscous torques, due to the frame-dragging…

Astrophysics of Galaxies · Physics 2015-05-30 Michal Bregman , Tal Alexander

Determining the final spin of a black-hole (BH) binary is a question of key importance in astrophysics. Modelling this quantity in general is made difficult by the fact that it depends on the 7-dimensional space of parameters characterizing…

General Relativity and Quantum Cosmology · Physics 2009-11-13 Luciano Rezzolla , Peter Diener , Ernst Nils Dorband , Denis Pollney , Christian Reisswig , Erik Schnetter , Jennifer Seiler

Combining a theoretical model of mass accretion onto a galactic center with a high-resolution $N$-body/SPH simulation, we investigate the formation of an intermediate massive black hole (IMBH) during the hierarchical formation of a small…

Astrophysics · Physics 2009-11-11 Nozomu Kawakatu , Takayuki R. Saitoh , Keiichi Wada

We develop a new sub-grid model for the growth of supermassive Black Holes (BHs) and their associated Active Galactic Nuclei (AGN) feedback in hydrodynamical cosmological simulations. Assuming that BHs are created in the early stages of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Yohan Dubois , Julien Devriendt , Adrianne Slyz , Romain Teyssier

Active galactic nuclei (AGN) probably control the growth of their host galaxies via feedback in the form of wide-angle wind-driven outflows. These establish the observed correlations between supermassive black hole (SMBH) masses and host…

Astrophysics of Galaxies · Physics 2019-08-08 Kastytis Zubovas , Andrew R. King

Supermassive black hole (BH) mergers produce powerful gravitational wave (GW) emission. Asymmetry in this emission imparts a recoil kick to the merged BH, which can eject the BH from its host galaxy altogether. Recoiling BHs could be…