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  The complex evolution of supermassive black holes in cosmological simulations

Johansson, P. H., Mannerkoski, M., Rantala, A., Liao, S., Rawlings, A., Irodotou, D., et al. (2023). The complex evolution of supermassive black holes in cosmological simulations. In D. Bisikalo, D. Wiebe, & C. Boily (Eds.), Predictive Power of Computational Astrophysics as a Discovery Tool (pp. 33-38). Cambridge, UK: Cambridge University Press. doi:10.1017/S1743921322001673.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000D-4B6C-7 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-4B6D-6
Genre: Conference Paper

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 Creators:
Johansson, Peter H., Author
Mannerkoski, Matias, Author
Rantala, Antti1, Author           
Liao, Shihong, Author
Rawlings, Alexander, Author
Irodotou, Dimitrios, Author
Rizzuto, Francesco, Author
Affiliations:
1Galaxy Formation, Cosmology, MPI for Astrophysics, Max Planck Society, ou_159878              

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 Abstract: We present here self-consistent zoom-in simulations of massive galaxies forming in a full cosmological setting. The simulations are run with an updated version of the KETJU code, which is able to resolve the gravitational dynamics of their supermassive black holes, while simultaneously modelling the large-scale astrophysical processes in the surrounding galaxies, such as gas cooling, star formation and stellar and AGN feedback. The KETJU code is able to accurately model the complex behaviour of multiple SMBHs, including dynamical friction, stellar scattering and gravitational wave emission, and also to resolve Lidov–Kozai oscillations that naturally occur in hierarchical triplet SMBH systems. In general most of the SMBH binaries form at moderately high eccentricities, with typical values in the range of , meaning that the circular binary models that are commonly used in the literature are insufficient for capturing the typical binary evolution.

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Language(s): eng - English
 Dates: 2023-01-202023
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1017/S1743921322001673
Other: LOCALID: Reihe: IAU...362, p.33
 Degree: -

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Title: 362th Symposium of the International Astronomical Union
Place of Event: Virtual Meeting, France
Start-/End Date: 2021-11-08 - 2021-11-12

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Title: Predictive Power of Computational Astrophysics as a Discovery Tool
Source Genre: Proceedings
 Creator(s):
Bisikalo, Dmitry, Editor
Wiebe, Dmitri, Editor
Boily, Christian, Editor
Affiliations:
-
Publ. Info: Cambridge, UK : Cambridge University Press
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 33 - 38 Identifier: ISBN: 978-1-108-49066-5

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Title: Proceedings of the International Astronomical Union
Source Genre: Series
 Creator(s):
International Astronomical Union, Editor              
Affiliations:
-
Publ. Info: Cambridge, UK : Cambridge University Press
Pages: - Volume / Issue: 362 Sequence Number: - Start / End Page: - Identifier: ISSN: 1743-9213