nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region
We examine the properties of the galaxies and dark matter haloes residing in the cluster infall region surrounding the simulated _ cold dark matter galaxy cluster studied by Elahi et al. at z = 0. The 1.1 × 1015 h−1M_ galaxy cluster has been simulated with eight different hydrodynamical codes contai...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
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Oxford University Press
2017
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| Online Access: | https://eprints.nottingham.ac.uk/42479/ |
| _version_ | 1848796495865708544 |
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| author | Arthur, Jake Pearce, Frazer R. Gray, Meghan E. Elahi, Pascal J. Knebe, Alexander Beck, Alexander M. Cui, Weiguang Cunnama, Daniel Davé, Romeel February, Sean Huang, Shuiyao Katz, Neal Kay, Scott T. McCarthy, Ian G. Murante, Giuseppe Perret, Valentin Power, Chris Puchwein, Ewald Saro, Alexandro Sembolini, Federico Teyssier, Romain Yepes, Gustavo |
| author_facet | Arthur, Jake Pearce, Frazer R. Gray, Meghan E. Elahi, Pascal J. Knebe, Alexander Beck, Alexander M. Cui, Weiguang Cunnama, Daniel Davé, Romeel February, Sean Huang, Shuiyao Katz, Neal Kay, Scott T. McCarthy, Ian G. Murante, Giuseppe Perret, Valentin Power, Chris Puchwein, Ewald Saro, Alexandro Sembolini, Federico Teyssier, Romain Yepes, Gustavo |
| author_sort | Arthur, Jake |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We examine the properties of the galaxies and dark matter haloes residing in the cluster infall region surrounding the simulated _ cold dark matter galaxy cluster studied by Elahi et al. at z = 0. The 1.1 × 1015 h−1M_ galaxy cluster has been simulated with eight different hydrodynamical codes containing a variety of hydrodynamic solvers and sub-grid schemes. All models completed a dark-matter-only, non-radiative and full-physics run from the same initial conditions. The simulations contain dark matter and gas with mass resolution mDM = 9.01 × 108 h−1M_ and mgas = 1.9 × 108 h−1M_, respectively. We find that the synthetic cluster is surrounded by clear filamentary structures that contain ∼60 per cent of haloes in the infall region with mass ∼1012.5–1014 h−1M_, including 2–3 group-sized haloes (>1013 h−1M_). However, we find that only ∼10 per cent of objects in the infall region are sub-haloes residing in haloes, which may suggest that there is not much ongoing pre-processing occurring in the infall region at z = 0. By examining the baryonic content contained within the haloes, we also show that the code-to-code scatter in stellar fraction across all halo masses is typically ∼2 orders of magnitude between the two most extreme cases, and this is predominantly due to the differences in sub-grid schemes and calibration procedures that each model uses. Models that do not include active galactic nucleus feedback typically produce too high stellar fractions compared to observations by at least ∼1 order of magnitude. |
| first_indexed | 2025-11-14T19:48:54Z |
| format | Article |
| id | nottingham-42479 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:54Z |
| publishDate | 2017 |
| publisher | Oxford University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-424792020-05-04T18:28:44Z https://eprints.nottingham.ac.uk/42479/ nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region Arthur, Jake Pearce, Frazer R. Gray, Meghan E. Elahi, Pascal J. Knebe, Alexander Beck, Alexander M. Cui, Weiguang Cunnama, Daniel Davé, Romeel February, Sean Huang, Shuiyao Katz, Neal Kay, Scott T. McCarthy, Ian G. Murante, Giuseppe Perret, Valentin Power, Chris Puchwein, Ewald Saro, Alexandro Sembolini, Federico Teyssier, Romain Yepes, Gustavo We examine the properties of the galaxies and dark matter haloes residing in the cluster infall region surrounding the simulated _ cold dark matter galaxy cluster studied by Elahi et al. at z = 0. The 1.1 × 1015 h−1M_ galaxy cluster has been simulated with eight different hydrodynamical codes containing a variety of hydrodynamic solvers and sub-grid schemes. All models completed a dark-matter-only, non-radiative and full-physics run from the same initial conditions. The simulations contain dark matter and gas with mass resolution mDM = 9.01 × 108 h−1M_ and mgas = 1.9 × 108 h−1M_, respectively. We find that the synthetic cluster is surrounded by clear filamentary structures that contain ∼60 per cent of haloes in the infall region with mass ∼1012.5–1014 h−1M_, including 2–3 group-sized haloes (>1013 h−1M_). However, we find that only ∼10 per cent of objects in the infall region are sub-haloes residing in haloes, which may suggest that there is not much ongoing pre-processing occurring in the infall region at z = 0. By examining the baryonic content contained within the haloes, we also show that the code-to-code scatter in stellar fraction across all halo masses is typically ∼2 orders of magnitude between the two most extreme cases, and this is predominantly due to the differences in sub-grid schemes and calibration procedures that each model uses. Models that do not include active galactic nucleus feedback typically produce too high stellar fractions compared to observations by at least ∼1 order of magnitude. Oxford University Press 2017-01-31 Article PeerReviewed Arthur, Jake, Pearce, Frazer R., Gray, Meghan E., Elahi, Pascal J., Knebe, Alexander, Beck, Alexander M., Cui, Weiguang, Cunnama, Daniel, Davé, Romeel, February, Sean, Huang, Shuiyao, Katz, Neal, Kay, Scott T., McCarthy, Ian G., Murante, Giuseppe, Perret, Valentin, Power, Chris, Puchwein, Ewald, Saro, Alexandro, Sembolini, Federico, Teyssier, Romain and Yepes, Gustavo (2017) nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region. Monthly Notices of the Royal Astronomical Society, 464 (2). pp. 2027-2038. ISSN 1365-2966 methods: numerical galaxies: clusters: general dark matter https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stw2424 doi:10.1093/mnras/stw2424 doi:10.1093/mnras/stw2424 |
| spellingShingle | methods: numerical galaxies: clusters: general dark matter Arthur, Jake Pearce, Frazer R. Gray, Meghan E. Elahi, Pascal J. Knebe, Alexander Beck, Alexander M. Cui, Weiguang Cunnama, Daniel Davé, Romeel February, Sean Huang, Shuiyao Katz, Neal Kay, Scott T. McCarthy, Ian G. Murante, Giuseppe Perret, Valentin Power, Chris Puchwein, Ewald Saro, Alexandro Sembolini, Federico Teyssier, Romain Yepes, Gustavo nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region |
| title | nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region |
| title_full | nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region |
| title_fullStr | nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region |
| title_full_unstemmed | nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region |
| title_short | nIFTy galaxy cluster simulations – V. Investigation of the cluster infall region |
| title_sort | nifty galaxy cluster simulations – v. investigation of the cluster infall region |
| topic | methods: numerical galaxies: clusters: general dark matter |
| url | https://eprints.nottingham.ac.uk/42479/ https://eprints.nottingham.ac.uk/42479/ https://eprints.nottingham.ac.uk/42479/ |