97 citations · 522 across the 22 of their papers we have counts for
15 papers · 1 filter
Identifying backsplash galaxies using machine learning
Roan Haggar, Elizaveta Sazonova, Cameron R. Morgan +5
The galaxy population in the outskirts of a cluster contains members that have been pre-processed in groups and filaments, as well as backsplash galaxies -- those that have recentl…
Identifying group galaxies merging with massive clusters using machine learning
Rhys Jordan, Meghan E. Gray, Alfonso Aragón-Salamanca +3
The environment plays a critical role in galaxy evolution, with galaxy clusters and their infall regions offering diverse conditions that shape galaxies before they enter the dense…
The life and times of dark matter haloes: what will I be when I grow up?
Julian Onions, Frazer Pearce, Alexander Knebe +6
Are the most massive objects in the Universe today the direct descendants of the most massive objects at higher redshift? We address this question by tracing the evolutionary histo…
Reconsidering the dynamical states of galaxy clusters using PCA and UMAP
Roan Haggar, Federico De Luca, Marco De Petris +10
Numerous metrics exist to quantify the dynamical state of galaxy clusters, both observationally and within simulations. Many of these correlate strongly with one another, but it is…
Galaxy pairs in The Three Hundred simulations II: studying bound ones and identifying them via machine learning
Ana Contreras-Santos, Alexander Knebe, Weiguang Cui +5
Using the data set of The Three Hundred project, i.e. 324 hydrodynamical resimulations of cluster-sized haloes and the regions of radius 15 Mpc around them, we study galaxy…
The Three Hundred project: connection between star formation quenching and dynamical evolution in and around simulated galaxy clusters
Tomás Hough, Sofía A. Cora, Roan Haggar +6
In this work, we combine the semi-analytic model of galaxy formation and evolution SAG with the relaxed simulated galaxy clusters from The Three Hundred project, and we study…
The Three Hundred project: Galaxy groups do not survive cluster infall
Roan Haggar, Ulrike Kuchner, Meghan E. Gray +4
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 galaxie…
Galaxy pairs in The Three Hundred simulations: a study on the performance of observational pair-finding techniques
Ana Contreras-Santos, Alexander Knebe, Weiguang Cui +5
Close pairs of galaxies have been broadly studied in the literature as a way to understand galaxy interactions and mergers. In observations they are usually defined by setting a ma…
SDSS-IV MaNGA: the chemical co-evolution of gas and stars in spiral galaxies
Michael J. Greener, Alfonso Aragón-Salamanca, Michael Merrifield +7
We investigate archaeologically how the metallicity in both stellar and gaseous components of spiral galaxies of differing masses evolve with time, using data from the SDSS-IV MaNG…
\textsc{The Three Hundred} project: The \textsc{Gizmo-Simba} run
Weiguang Cui, Romeel Dave, Alexander Knebe +22
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 o…
An inventory of galaxies in cosmic filaments feeding galaxy clusters: galaxy groups, backsplash galaxies, and pristine galaxies
Ulrike Kuchner, Roan Haggar, Alfonso Aragón-Salamanca +6
Galaxy clusters grow by accreting galaxies from the field and along filaments of the cosmic web. As galaxies are accreted they are affected by their local environment before they e…
The Three Hundred Project: Substructure in hydrodynamical and dark matter simulations of galaxy groups around clusters
Roan Haggar, Frazer R. Pearce, Meghan E. Gray +2
Dark matter-only simulations are able to produce the cosmic structure of a CDM universe, at a much lower computational cost than more physically motivated hydrodynamical simulat…
The Three Hundred project: shapes and radial alignment of satellite, infalling, and backsplash galaxies
Alexander Knebe, Matias Gamez-Marin, Frazer R. Pearce +6
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.…
Mapping and characterisation of cosmic filaments in galaxy cluster outskirts: strategies and forecasts for observations from simulations
Ulrike Kuchner, Alfonso Aragón-Salamanca, Frazer R. Pearce +11
Upcoming wide-field surveys are well-suited to studying the growth of galaxy clusters by tracing galaxy and gas accretion along cosmic filaments. We use hydrodynamic simulations of…
The Three Hundred Project: Backsplash galaxies in simulations of clusters
Roan Haggar, Meghan E. Gray, Frazer R. Pearce +4
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 the…