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arXiv · 2202.14038

\textsc{The Three Hundred} project: The \textsc{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 Dolag·Ying Zu·Ulrike Kuchner·Rodrigo Cañas·Antonio Ferragamo·Giulia Gianfagna
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Abstract

We introduce \textsc{Gizmo-Simba}, a new suite of galaxy cluster simulations within \textsc{The Three Hundred} project. \textsc{The Three Hundred} consists of zoom re-simulations of 324 clusters with $M_{200}\gtrsim 10^{14.8}M_\odot$ drawn from the MultiDark-Planck $N$-body simulation, run using several hydrodynamic and semi-analytic codes. The \textsc{Gizmo-Simba} suite adds a state-of-the-art galaxy formation model based on the highly successful {\sc Simba} simulation, mildly re-calibrated to match $z=0$ cluster stellar properties. Comparing to \textsc{The Three Hundred} zooms run with \textsc{Gadget-X}, we find intrinsic differences in the evolution of the stellar and gas mass fractions, BCG ages, and galaxy colour-magnitude diagrams, with \textsc{Gizmo-Simba} generally providing a good match to available data at $z \approx 0$. \textsc{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. \textsc{Gizmo-Simba} provides a new and novel platform to elucidate the co-evolution of galaxies, gas, and black holes within the densest cosmic environments.

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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 Dolag, Ying Zu, Ulrike Kuchner, Rodrigo Cañas, Antonio Ferragamo, Giulia Gianfagna. 2022-02-28. \textsc{The Three Hundred} project: The \textsc{Gizmo-Simba} run. https://doi.org/10.1093/mnras/stac1402

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