Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback
Energetic feedback from active galactic nuclei (AGNs) is often used in simulations to resolve several outstanding issues in galaxy formation, but its impact is still not fully understood. Here we derive new constraints on AGN feedback by comparing observations and simulations of the thermal Sunyaev-...
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Online Access: | https://doi.org/10.3847/1538-4357/aada01 https://ora.ox.ac.uk/objects/uuid:65049120-db51-4b5a-9e6f-d6e9f74477fc |
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ftuloxford:oai:ora.ox.ac.uk:uuid:65049120-db51-4b5a-9e6f-d6e9f74477fc 2023-05-15T18:23:09+02:00 Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback Spacek, A Richardson, M Scannapieco, E Devriendt, J Dubois, Y Peirani, S Pichon, C 2018-09-26 https://doi.org/10.3847/1538-4357/aada01 https://ora.ox.ac.uk/objects/uuid:65049120-db51-4b5a-9e6f-d6e9f74477fc unknown Institute of Physics doi:10.3847/1538-4357/aada01 https://ora.ox.ac.uk/objects/uuid:65049120-db51-4b5a-9e6f-d6e9f74477fc https://doi.org/10.3847/1538-4357/aada01 info:eu-repo/semantics/openAccess Journal article 2018 ftuloxford https://doi.org/10.3847/1538-4357/aada01 2022-06-28T20:14:03Z Energetic feedback from active galactic nuclei (AGNs) is often used in simulations to resolve several outstanding issues in galaxy formation, but its impact is still not fully understood. Here we derive new constraints on AGN feedback by comparing observations and simulations of the thermal Sunyaev-Zel'dovich (tSZ) effect. We draw on observational results presented in Spacek et al. (2016, 2017) who used data from the South Pole Telescope (SPT) and Atacama Cosmology Telescope (ACT) to measure the tSZ signal from >= 10^11 M_Sun and >= 1 Gyr galaxies at z=0.5-1.0 (low-z) and z=1.0-1.5 (high-z). Using the large-scale cosmological hydrodynamical simulations Horizon-AGN and Horizon-NoAGN, which include and omit AGN feedback, we extract simulated tSZ measurements around galaxies equivalent to the observational work. We find that the Horizon-AGN results only differ from the SPT measurements at levels of 0.4 sigma (low-z) and 0.6 sigma (high-z), but differ from the ACT measurements by 3.4 sigma (low-z) and 2.3 sigma (high-z). The Horizon-NoAGN results provide a slightly better fit to the SPT measurements by differing by 0.2 sigma (low-z) and 0.4 sigma (high-z), but a significantly better match to the ACT measurements by differing by only 0.5 sigma (low-z) and 1.4 sigma (high-z). We conclude that, while the lower-mass (<~ 5 x 10^11 M_Sun) SPT results allow for the presence AGN feedback energy, the higher-mass (>~ 5 x 10^11 M_Sun) ACT results show significantly less energy than predicted in the simulation including AGN feedback, while more closely matching the simulation without AGN feedback, indicating that AGN feedback may be milder than often predicted in simulations. Article in Journal/Newspaper South pole ORA - Oxford University Research Archive South Pole The Astrophysical Journal 865 2 109 |
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ORA - Oxford University Research Archive |
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ftuloxford |
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description |
Energetic feedback from active galactic nuclei (AGNs) is often used in simulations to resolve several outstanding issues in galaxy formation, but its impact is still not fully understood. Here we derive new constraints on AGN feedback by comparing observations and simulations of the thermal Sunyaev-Zel'dovich (tSZ) effect. We draw on observational results presented in Spacek et al. (2016, 2017) who used data from the South Pole Telescope (SPT) and Atacama Cosmology Telescope (ACT) to measure the tSZ signal from >= 10^11 M_Sun and >= 1 Gyr galaxies at z=0.5-1.0 (low-z) and z=1.0-1.5 (high-z). Using the large-scale cosmological hydrodynamical simulations Horizon-AGN and Horizon-NoAGN, which include and omit AGN feedback, we extract simulated tSZ measurements around galaxies equivalent to the observational work. We find that the Horizon-AGN results only differ from the SPT measurements at levels of 0.4 sigma (low-z) and 0.6 sigma (high-z), but differ from the ACT measurements by 3.4 sigma (low-z) and 2.3 sigma (high-z). The Horizon-NoAGN results provide a slightly better fit to the SPT measurements by differing by 0.2 sigma (low-z) and 0.4 sigma (high-z), but a significantly better match to the ACT measurements by differing by only 0.5 sigma (low-z) and 1.4 sigma (high-z). We conclude that, while the lower-mass (<~ 5 x 10^11 M_Sun) SPT results allow for the presence AGN feedback energy, the higher-mass (>~ 5 x 10^11 M_Sun) ACT results show significantly less energy than predicted in the simulation including AGN feedback, while more closely matching the simulation without AGN feedback, indicating that AGN feedback may be milder than often predicted in simulations. |
format |
Article in Journal/Newspaper |
author |
Spacek, A Richardson, M Scannapieco, E Devriendt, J Dubois, Y Peirani, S Pichon, C |
spellingShingle |
Spacek, A Richardson, M Scannapieco, E Devriendt, J Dubois, Y Peirani, S Pichon, C Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback |
author_facet |
Spacek, A Richardson, M Scannapieco, E Devriendt, J Dubois, Y Peirani, S Pichon, C |
author_sort |
Spacek, A |
title |
Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback |
title_short |
Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback |
title_full |
Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback |
title_fullStr |
Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback |
title_full_unstemmed |
Using real and simulated measurements of the thermal Sunyaev-Zel'dovich effect to constrain models of AGN feedback |
title_sort |
using real and simulated measurements of the thermal sunyaev-zel'dovich effect to constrain models of agn feedback |
publisher |
Institute of Physics |
publishDate |
2018 |
url |
https://doi.org/10.3847/1538-4357/aada01 https://ora.ox.ac.uk/objects/uuid:65049120-db51-4b5a-9e6f-d6e9f74477fc |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
doi:10.3847/1538-4357/aada01 https://ora.ox.ac.uk/objects/uuid:65049120-db51-4b5a-9e6f-d6e9f74477fc https://doi.org/10.3847/1538-4357/aada01 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3847/1538-4357/aada01 |
container_title |
The Astrophysical Journal |
container_volume |
865 |
container_issue |
2 |
container_start_page |
109 |
_version_ |
1766202633256697856 |