The Horizon-AGN simulation: evolution of galaxy properties over cosmic time

By S. Kaviraj, C. Laigle, T. Kimm, J. Devriendt, Y. Dubois, C. Pichon, A. Slyz, E. Chisari, Sébastien Peirani. 2016

163 citations recorded by the source corpus.

We compare the predictions of Horizon-AGN, a hydro-dynamical cosmological simulation that uses an adaptive mesh refinement code, to observational data in the redshift range 0 6. We study the reproduction, by the simulation, of quantities that trace the aggregate stellar-mass growth of galaxies over cosmic time: luminosity and stellar-mass functions, the star formation main sequence, rest-frame UV-optical-near infrared colours and the cosmic star-formation history. We show that Horizon-AGN, which is not tuned to reproduce the local Universe, produces good overall agreement with these quantities, from the present day to the epoch when the Universe was 5% of its current age. By comparison to Horizon-noAGN, a twin simulation without AGN feedback, we quantify how feedback from black holes is likely to help shape galaxy stellar-mass growth in the redshift range 0 6, particularly in the most massive galaxies. Our results demonstrate that Horizon-AGN successfully captures the evolutionary trends of observed galaxies over the lifetime of the Universe, making it an excellent tool for studying the processes that drive galaxy evolution and making predictions for the next generation of galaxy surveys.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/a4ebfdc96a62886f4b5d18bd9785fb845492b9a8

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. P. Hopkins
2. L. Hernquist
3. P. Capak
4. Mara Salvato
5. O. Ilbert
6. R. Dav'e
7. Volker Springel
8. R. Somerville

In Instrumentation

1. P. Capak
2. Mara Salvato
3. O. Ilbert
4. P. Hopkins
5. L. Hernquist
6. R. Dav'e
7. J. Silverman
8. H. McCracken

Citations in the corpus

• The COSMOS2015 galaxy stellar mass function . Thirteen billion years of stellar mass assembly in ten snapshots (2017, background): “An example is the cosmological hydrodynamical simulation Horizon-AGN (Dubois et al. 2014): at z > 3, the SMF of the Horizon-AGN simulated galaxies does not change significantly if AGN feedback is switched off (Kaviraj et al. 2017).”
• simba: Cosmological simulations with black hole growth and feedback (2019, background): “…(Vogelsberger et al. 2014; Genel et al. 2014), Magneticum (Hirschmann et al. 2014), Horizon-AGN (Dubois et al. 2014; Volonteri et al. 2016; Kaviraj et al. 2017), Eagle (Schaye et al. 2015), MassiveBlack (Khandai et al. 2015), Blue Tides (Feng et al. 2016), Romulus (Tremmel et al. 2017),…”
• Euclid preparation (2021, background): “Kaviraj et al. (2017) compare the global properties of the simulated galaxies with statistical measurements available in the literature (as the luminosity functions, the star-forming main sequence, or the mass functions).”