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We analyse the gas content evolution of infalling haloes in cluster environments from THE THREE HUNDRED project, a collection of 324 numerically modelled galaxy clusters. The haloes in our sample were selected within $5R_{200}$ of the main…

Recent numerical studies of the dark matter density profiles of massive galaxy clusters ($M_{\rm halo} > 10^{15}$M$_{\odot}$) show that their median radial mass density profile remains unchanged up to $z > 1$, displaying a highly…

Galaxy clusters grow by accreting galaxies as individual objects, or as members of a galaxy group. These groups can strongly impact galaxy evolution, stripping the gas from galaxies, and enhancing the rate of galaxy mergers. However, it is…

Astrophysics of Galaxies · Physics 2022-10-17 Roan Haggar , Ulrike Kuchner , Meghan E. Gray , Frazer R. Pearce , Alexander Knebe , Gustavo Yepes , Weiguang Cui

Using the data set of The Three Hundred project, i.e. a suite of 324 hydrodynamical resimulations of cluster-sized haloes, we study galaxy cluster mergers and their effect on colour and luminosity changes of their brightest cluster galaxies…

Using 324 numerically modelled galaxy clusters we investigate the radial and galaxy-halo alignment of dark matter subhaloes and satellite galaxies orbiting within and around them. We find that radial alignment depends on distance to the…

In the outer regions of a galaxy cluster, galaxies may be either falling into the cluster for the first time, or have already passed through the cluster centre at some point in their past. To investigate these two distinct populations, we…

Astrophysics of Galaxies · Physics 2020-02-12 Roan Haggar , Meghan E. Gray , Frazer R. Pearce , Alexander Knebe , Weiguang Cui , Robert Mostoghiu , Gustavo Yepes

We investigate the magnitude and internal alignment of the angular momentum of cold dark matter haloes in simulations with and without baryons. We analyse the cumulative angular momentum profiles of hundreds of thousands of haloes in the…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-07 Philip Bett , Vincent Eke , Carlos S. Frenk , Adrian Jenkins , Takashi Okamoto

We use TheThreeHundred project, a suite of 324 resimulated massive galaxy clusters embedded in a broad range of environments, to investigate (i) how the gas content of surrounding haloes correlates with phase-space position at $z=0$, and…

We explore the co-evolution of the specific angular momentum of dark matter haloes and the cold baryons that comprise the galaxies within. We study over two thousand central galaxies within the reference cosmological hydrodynamical…

Galaxy clusters have a triaxial matter distribution. The weak-lensing signal, an important part in cosmological studies, measures the projected mass of all matter along the line-of-sight, and therefore changes with the orientation of the…

Hydrostatic equilibrium (HE) is often used in observations to estimate galaxy clusters masses. We use a set of almost 300 simulated clusters from The Three Hundred Project, to estimate the cluster HE mass and the bias deriving from it. We…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 Giulia Gianfagna , Elena Rasia , Weiguang Cui , Marco De Petris , Gustavo Yepes

The halo assembly bias, a phenomenon referring to dependencies of the large-scale bias of a dark matter halo other than its mass, is a fundamental property of the standard cosmological model. First discovered in 2005 from the Millennium Run…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-19 Yen-Ting Lin , Hironao Miyatake , Hong Guo , Yi-Kuan Chiang , Kai-Feng Chen , Ting-Wen Lan , Yu-Yen Chang

We examine the splashback structure of galaxy clusters using hydrodynamical simulations from the GIZMO run of The Three Hundred Project, focusing on the relationship between the stellar and dark matter components. We dynamically decompose…

Astrophysics of Galaxies · Physics 2026-03-18 Kris Walker , Aaron Ludlow , Chris Power , Alexander Knebe , Weiguang Cui

We expand our previous study on the relationship between changes in the orientation of the angular momentum vector of dark matter haloes ("spin flips") and changes in their mass (Bett & Frenk 2012), to cover the full range of halo masses in…

Astrophysics of Galaxies · Physics 2016-07-06 Philip E. Bett , Carlos S. Frenk

We investigate the co-evolution of the angular momentum of Milky Way-like galaxies, their circumgalactic gas, and their dark matter halos using zoom-in simulations from the Figuring Out Gas & Galaxies in Enzo (FOGGIE) suite. We examine how…

We study the connection between morphology and dynamical state of the simulated galaxy clusters in $z\in[0,1.031]$ from THE THREE HUNDRED Project. We quantify cluster dynamical state using a combination of dynamical indicators from…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-28 Federico De Luca , Marco De Petris , Gustavo Yepes , Weiguang Cui , Alexander Knebe , Elena Rasia

Using the data set of The Three Hundred project, i.e. 324 hydrodynamical resimulations of cluster-sized haloes and the regions of radius 15 $h^{-1}$Mpc around them, we study galaxy pairs in high-density environments. By projecting the…

We use a hybrid observational/theoretical approach to study the relation between galaxy kinematics and the derived stellar and halo masses of galaxies up to z=3 as a function of stellar mass, redshift and morphology. Our observational…

Astrophysics of Galaxies · Physics 2018-08-15 Christopher J. Conselice , Jonathan W. Twite , David P. Palamara , William Hartley

Stellar clusters form by gravitational collapse of turbulent molecular clouds, with up to several thousand stars per cluster. They are thought to be the birthplace of most stars and therefore play an important role in our understanding of…

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