Pre-Processing and Post-Processing in Group-Cluster Mergers

Abstract

Galaxies in clusters are more likely to be of early type and to have lower star formation rates than galaxies in the field. Recent observations and simulations suggest that cluster galaxies may be `pre-processed' by group or filament environments and that galaxies that fall into a cluster as part of a larger group can stay coherent within the cluster for up to one orbital period (`post-processing'). We investigate these ideas by means of a cosmological $N$-body simulation and idealized $N$-body plus hydrodynamics simulations of a group-cluster merger. We find that group environments can contribute significantly to galaxy pre-processing by means of enhanced galaxy-galaxy merger rates, removal of galaxies' hot halo gas by ram pressure stripping, and tidal truncation of their galaxies. Tidal distortion of the group during infall does not contribute to pre-processing. Post-processing is also shown to be effective: galaxy-galaxy collisions are enhanced during a group's pericentric passage within a cluster, the merger shock enhances the ram pressure on group and cluster galaxies, and an increase in local density during the merger leads to greater galactic tidal truncation.

Accepted for publication in MNRAS. 25 pages, 21 figures

References in corpus (16)

• A unified model for AGN feedback in cosmological simulations of structure formation
• Intracluster Medium Entropy Profiles for a Chandra Archival Sample of Galaxy Clusters
• Ram pressure stripping the hot gaseous halos of galaxies in groups and clusters
• Galaxy Groups in the SDSS DR4: II. halo occupation statistics
• The impact of mergers on relaxed X-ray clusters - I. Dynamical evolution and emergent transient structures
• The Halo Mass Function: High-Redshift Evolution and Universality
• The Assembly of Galaxy Clusters
• X-ray thermal coronae of galaxies in hot clusters -- ubiquity of embedded mini cooling cores
• A Direct Multigrid Poisson Solver for Oct-Tree Adaptive Meshes
• The Highest Resolution Mass Map of Galaxy Cluster Substructure To Date Without Assuming Light Traces Mass: LensPerfect Analysis of Abell 1689
• The impact of mergers on relaxed X-ray clusters - III. Effects on compact cool cores
• Simulating Subhalos at High Redshift: Merger Rates, Counts, and Types
• Ram pressure histories of cluster galaxies
• Chandra and XMM-Newton Detection of Large-scale Diffuse X-ray Emission from the Sombrero Galaxy
• Dark Matter Subhalos and the X-ray Morphology of the Coma Cluster
• Examining subgrid models of supermassive black holes in cosmological simulation

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