The Metal Content of the Hot Atmospheres of Galaxy Groups
Abstract
:1. Introduction
2. X-ray Observations
2.1. The Observational Signatures of Metals in the IGrM
2.2. The Early Measurements of Global Metallicity
2.3. The Spatial Distribution of the Metals in the IGrM
2.3.1. Radial Profiles of Iron Abundance
2.3.2. Chemical Composition and Its Radial Dependence
2.3.3. 2-Dimensional Metallicity Maps
2.4. Metal Budgets
2.5. High Resolution Spectroscopy: Current Observational Results with RGS
3. Theoretical Framework and Simulations
3.1. High-Resolution Hydrodynamical Simulations and Small-Scale Astrophysics
3.2. Cosmological Simulations and Large-Scale Evolution
3.2.1. Results from Cosmological Simulations
4. Future X-ray Missions
4.1. eROSITA
4.2. XRISM
4.3. Athena
4.4. HUBS and Super DIOS
4.5. Arcus
4.6. Lynx
5. Concluding Remarks
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
1. | , where is the continuum intensity without the line |
2. | In Johnson et al. [90], a “cool-core” group is defined as such when its temperature profile shows a clear central decrease out to at least ∼0.1. This definition is of course arbitrary and may differ from other proposed ones. |
3. | In Mernier et al. [89], a “group/elliptical” is defined as such when the mean temperature of the system within 0.05 does not exceed 1.7 keV. Here, again, this definition is arbitrary and a given rich group could be defined as a poor cluster in other studies. |
4. | For the value in Reference [328]. |
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Gastaldello, F.; Simionescu, A.; Mernier, F.; Biffi, V.; Gaspari, M.; Sato, K.; Matsushita, K. The Metal Content of the Hot Atmospheres of Galaxy Groups. Universe 2021, 7, 208. https://doi.org/10.3390/universe7070208
Gastaldello F, Simionescu A, Mernier F, Biffi V, Gaspari M, Sato K, Matsushita K. The Metal Content of the Hot Atmospheres of Galaxy Groups. Universe. 2021; 7(7):208. https://doi.org/10.3390/universe7070208
Chicago/Turabian StyleGastaldello, Fabio, Aurora Simionescu, Francois Mernier, Veronica Biffi, Massimo Gaspari, Kosuke Sato, and Kyoko Matsushita. 2021. "The Metal Content of the Hot Atmospheres of Galaxy Groups" Universe 7, no. 7: 208. https://doi.org/10.3390/universe7070208