论文标题
带有活性银河核反馈的星系簇中的模拟X射线发射
Simulated X-ray Emission in Galaxy Clusters with Feedback from Active Galactic Nuclei
论文作者
论文摘要
为了研究活性银河核（AGN）的反馈对周围介质的影响，我们通过将天体物理血浆发射码（APEC）与涉及AGN反馈的宇宙流体动力学模拟耦合，研究了星系基和簇的弥漫性X射线发射。我们构建了合成Chandra X射线光子图的统计样本，以观察表征AGN对环境介质的影响。我们表明，AGN可以有效地从组和簇中心置换热X射线发射气体，并且在观察X射线表面亮度曲线中，这些特征仍然很明显。
To investigate the effect of feedback from active galactic nuclei (AGN) on their surrounding medium, we study the diffuse X-ray emission from galaxy groups and clusters by coupling the Astrophysical Plasma Emission Code (APEC) with the cosmological hydrodynamic simulation involving AGN feedback. We construct a statistical sample of synthetic Chandra X-ray photon maps to observationally characterize the effect of AGN on the ambient medium. We show that AGN are effective in displacing the hot X-ray emitting gas from the centers of groups and clusters, and that these signatures remain evident in observations of the X-ray surface brightness profiles.
