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The EAGLE project: simulating the evolution and assembly of galaxies and their environments

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posted on 2023-06-08, 19:47 authored by Joop Schaye, Robert A Crain, Richard G Bower, Michelle Furlong, Matthieu Schaller, Tom Theuns, Claudio Dalla Vecchia, Carlos S Frenk, I G McCarthy, John C Helly, Adrian Jenkins, Y M Rosas-Guevara, Simon D M White, Maarten Baes, C M Booth, Peter Camps, Julio F Navarro, Yan Qu, Alireza Rahmati, Till Sawala, Peter ThomasPeter Thomas, James Trayford
We introduce the Virgo Consortium's EAGLE project, a suite of hydrodynamical simulations that follow the formation of galaxies and black holes in representative volumes. We discuss the limitations of such simulations in light of their finite resolution and poorly constrained subgrid physics, and how these affect their predictive power. One major improvement is our treatment of feedback from massive stars and AGN in which thermal energy is injected into the gas without the need to turn off cooling or hydrodynamical forces, allowing winds to develop without predetermined speed or mass loading factors. Because the feedback efficiencies cannot be predicted from first principles, we calibrate them to the z~0 galaxy stellar mass function and the amplitude of the galaxy-central black hole mass relation, also taking galaxy sizes into account. The observed galaxy mass function is reproduced to ?0.2 dex over the full mass range, 108

Funding

Astronomy rolling grant; G0278; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I000976/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Publisher

Wiley-Blackwell

Issue

1

Volume

446

Page range

521-554

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-01-27

First Open Access (FOA) Date

2015-01-27

First Compliant Deposit (FCD) Date

2015-01-27

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