利用 SZ、流体力学模拟、光学和 X 射线(ICM-SHOX)改进对合并的约束

E. M. Silich, E. Bellomi, J. Sayers, J. Zuhone, U. Chadayammuri, S. Golwala, D. Hughes, A. Montaña, T. Mroczkowski, D. Nagai, D. Sánchez, S. Stanford, G. Wilson, M. Zemcov, A. Zitrin
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引用次数: 0

摘要

星系团合并代表了广泛的物理学,使其成为暗物质特性和星系团内介质电离等离子体的绝佳探测器。迄今为止,大多数研究都集中在发生在天空平面上的合并,因为在天空平面上的合并形态特征很容易识别。为了研究任意方向的合并,我们为八个星团 ICM-SHOX 样本收集了对形态和视线速度都敏感的多探测器数据。第一篇ICM-SHOX论文[1]概述了我们应用于样本中一个成员--MACS J0018.5+1626--的方法,以限制其合并的几何形状。这项工作带来了一个令人兴奋的新发现,即其气体和暗物质分布的速度空间解耦。在这项工作中,我们介绍了全部 ICM-SHOX 星系群样本的多探测器数据的可用性和质量。这些数据集将成为即将进行的ICM-SHOX星系团全样本分析的观测基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improved Constraints on Mergers with SZ, Hydrodynamical simulations, Optical, and X-ray (ICM-SHOX)
Galaxy cluster mergers are representative of a wide range of physics, making them an excellent probe of the properties of dark matter and the ionized plasma of the intracluster medium. To date, most studies have focused on mergers occurring in the plane of the sky, where morphological features can be readily identified. To allow study of mergers with arbitrary orientation, we have assembled multi-probe data for the eight-cluster ICM-SHOX sample sensitive to both morphology and line of sight velocity. The first ICM-SHOX paper [1] provided an overview of our methodology applied to one member of the sample, MACS J0018.5+1626, in order to constrain its merger geometry. That work resulted in an exciting new discovery of a velocity space decoupling of its gas and dark matter distributions. In this work, we describe the availability and quality of multi-probe data for the full ICM-SHOX galaxy cluster sample. These datasets will form the observational basis of an upcoming full ICM-SHOX galaxy cluster sample analysis.
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