The Three Hundred project: The gizmo-simba run

Weiguang Cui*, Romeel Dave, Alexander Knebe, Elena Rasia, Meghan Gray, Frazer Pearce, Chris Power, Gustavo Yepes, Dhayaa Anbajagane, Daniel Ceverino, Ana Contreras-Santos, Daniel de Andres, Marco De Petris, Stefano Ettori, Roan Haggar, Qingyang Li, Yang Wang, Xiaohu Yang, Stefano Borgani, Klaus DolagYing Zu, Ulrike Kuchner, Rodrigo Cañas, Antonio Ferragamo, Giulia Gianfagna

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We introduce gizmo-simba, a new suite of galaxy cluster simulations within The Three Hundred project. The Three Hundred consists of zoom re-simulations of 324 clusters with M200≳1014.8M⊙ drawn from the MultiDark-Planck N-body simulation, run using several hydrodynamic and semi-analytical codes. The gizmo-simba suite adds a state-of-the-art galaxy formation model based on the highly successful Simba simulation, mildly re-calibrated to match z = 0 cluster stellar properties. Comparing to The Three Hundred zooms run with gadget-x, we find intrinsic differences in the evolution of the stellar and gas mass fractions, BCG ages, and galaxy colour–magnitude diagrams, with gizmo-simba generally providing a good match to available data at z ≈ 0. gizmo-simba’s unique black hole growth and feedback model yields agreement with the observed BH scaling relations at the intermediate-mass range and predicts a slightly different slope at high masses where few observations currently lie. Gizmo-Simba provides a new and novel platform to elucidate the co-evolution of galaxies, gas, and black holes within the densest cosmic environments.
Original languageEnglish
Pages (from-to)977-996
Number of pages20
JournalMonthly Notices of the Royal Astronomical Society
Issue number1
Early online date16 May 2022
Publication statusPublished - 1 Jul 2022

Keywords / Materials (for Non-textual outputs)

  • astro-ph.GA
  • galaxies: formation
  • galaxies: clusters: general
  • galaxies: evolution
  • galaxies: clusters: intracluster medium


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