Simulated X‐ray emission in galaxy clusters with feedback from active galactic nuclei

R. K. Chowdhury, Soumya S. Roy, S. Chatterjee, N. Khandai, C. Sarazin, T. Matteo
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引用次数: 1

Abstract

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.
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利用活动星系核的反馈模拟星系团中的X射线发射
为了研究活动星系核(AGN)反馈对周围介质的影响,我们将天体物理等离子体发射代码(APEC)与涉及AGN反馈的宇宙学流体力学模拟相结合,研究了星系团和星系团的漫射x射线发射。我们构建了一个合成钱德拉x射线光子图的统计样本,以观测表征AGN对环境介质的影响。我们发现AGN可以有效地取代团和星团中心的热x射线发射气体,并且这些特征在x射线表面亮度剖面的观测中仍然很明显。
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