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arXiv 2209.02539astro-ph.CO
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宇宙中最遥远的星系团的X-IFU/Athena视图

X-IFU/Athena view of the most distant galaxy clusters in the Universe

Florent Castellani, N. Clerc, Etienne Pointecouteau, Yannick Bahé, F. Pajot

摘要:

欧空局第二次大型飞行任务“雅典娜"上的X射线积分场单元(X-IFU)将是一个高空间(5”)和光谱(2.5 eV)分辨率的X射线成像光谱仪,在0.2-12 keV能带工作。它将解决宇宙中最大的物质晕、星系群和星系团在宇宙时间中的组装和演化的科学问题。为此,我们提出了一个正在进行的可行性研究,以证明X-IFU的能力,揭开大规模晕在其形成的时代的物理。从一个遥远的(z=2)的星系($M_{500} = 7\cdot 10^{13} M_\odot/h$)从HYDRANGEA宇宙学和流体动力学的数值模拟提取的组开始,我们执行X-IFU观测的端到端的模拟。通过对星系团的整体、一维和二维物理量的重建,我们计划研究星系团的各种X-IFU科学案例,如星系团内介质的化学富集、星系团和星系团的动力学组装以及星系和超大质量黑洞演化反馈的影响。

英文摘要:

The X-ray Integral Field Unit (X-IFU) on-board the second large ESA mission ''Athena'' will be a high spatial (5'') and spectral (2.5eV) resolution X-ray imaging spectrometer, operating in the 0.2-12 keV energy band. It will address the science question of the assembly and evolution through cosmic time of the largest halos of matter in the Universe, groups and clusters of galaxies. To this end, we present an on-going feasibility study to demonstrate the X-IFU capabilities to unveil the physics of massive halos at their epoch of formation. Starting from a distant (z=2) group of galaxies ($M_{500} = 7\cdot 10^{13} M_\odot/h$) extracted from the HYDRANGEA cosmological and hydrodynamical numerical simulations, we perform an end-to-end simulation of X-IFU observations. From the reconstruction of the global, 1D and 2D quantities, we plan to investigate the various X-IFU science cases for clusters of galaxies, such as the chemical enrichment of the intra-cluster medium (ICM), the dynamical assembly of groups and clusters and the impact of feedback from galaxy and super-massive black hole evolution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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