English
Related papers

Related papers: The Three Hundred: Cluster Dynamical States and Re…

200 papers

The baryon fraction of galaxy clusters is a powerful tool to inform on the cosmological parameters while the hot-gas fraction provides indications on the physics of the intracluster plasma and its interplay with the processes driving galaxy…

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

In this study, we investigate a recent finding based on strong lensing observations, which suggests that the sub-halos observed in clusters exhibit greater compactness compared to those predicted by $\Lambda$CDM simulations. To address this…

We use the Millennium Simulation series to study how the dynamical state of dark matter halos affects the relation between mass and concentration. We find that a large fraction of massive systems are identified when they are substantially…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-07 Aaron D. Ludlow , Julio F. Navarro , Ming Li , Raul E. Angulo , Michael Boylan-Kolchin , Philip E. Bett

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 role of baryon models played in hydrodynamic simulations is still unclear. Future surveys that use cluster statistics to precisely constrain cosmology models require a better understanding of that. With the hydro-simulated galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 Weiguang Cui

The distribution of baryons provides a significant way to understand the formation of galaxy clusters by revealing the details of its internal structure and changes over time. In this paper, we present theoretical studies on the scaled…

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…

Measurements of the sparsity of galaxy clusters can be used to probe the cosmological information encoded in the host dark matter halo profile, and infer constraints on the cosmological model parameters. Key to the success of these analyses…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-13 P. S. Corasaniti , T. R. G. Richardson , S. Ettori , M. De Petris , E. Rasia , W. Cui , G. Yepes , G. Gianfagna , A. M. C. Le Bun , Y. Rasera

We use a set of about 300 simulated clusters from The Three Hundred Project to calculate their hydrostatic masses and evaluate the associated bias by comparing them with the true cluster mass. Over a redshift range from 0.07 to 1.3, we…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-30 Giulia Gianfagna , Elena Rasia , Weiguang Cui , Marco De Petris , Gustavo Yepes , Ana Contreras-Santos , Alexander Knebe

Cluster number counts will be a key cosmological probe in the next decade thanks to the Euclid satellite mission. For this purpose, cluster detection algorithm performance, which are sensitive to the spatial distribution of the cluster…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-19 A. Jiménez Muñoz , J. F. Macías-Pérez , G. Yepes , M. De Petris , A. Ferragamo , W. Cui , J. S. Gómez

The mass of galaxy clusters estimated from weak-lensing observations is affected by projection effects, leading to a systematic underestimation compared to the true cluster mass, varying with both mass and redshift. The magnitude depends on…

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…

Using 324 numerically modelled galaxy clusters as provided by THE THREE HUNDRED project, we study the evolution of the kinematic properties of the stellar component of haloes on first infall. We select objects with…

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 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…

The dynamical state of galaxy clusters describes if clusters are relaxed dynamically or in a merging process of subclusters. By using archival images from the Chandra X-ray Observatory, we derive a set of parameters to describe the…

Astrophysics of Galaxies · Physics 2025-09-29 Z. S. Yuan , J. L. Han

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 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…

‹ Prev 1 2 3 10 Next ›