Galaxy cluster rotation revealed in the MACSIS simulations with the kinetic Sunyaev-Zeldovich effect
Galaxy cluster rotation revealed in the MACSIS simulations with the kinetic Sunyaev-Zeldovich effect
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MACSIS 模拟中揭示的星系团旋转与动力学 Sunyaev-Zeldovich 效应
DOI：
10.1093/mnras/stad1841
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发表时间：
2023
影响因子：
4.8
通讯作者：
Altamura E
中科院分区：
文献类型：
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作者：
Altamura E
动力学Sunyaev-Zeldovich（kSZ）效应现在已经成为正在进行和未来的宇宙微波背景（CMB）和宇宙学研究的明确目标。除了大块的集群运动，内部运动也导致kSZ信号。在这项工作中，我们研究了旋转kSZ效应所造成的相干大尺度运动的集群介质使用集群流体动力学宇宙学模拟。为了利用旋转kSZ作为宇宙学探测器，模拟提供了一些最全面的数据集，可以告知这个信号的建模。在这项工作中，我们使用的MACSIS数据集调查的旋转kSZ效应在大规模集群具体。基于这些模型，我们测试堆叠的方法，并估计组合信号的幅度与不同的质量，动力学状态，红移，和地图对齐几何。我们发现，暗物质，星系和气体自旋一般错位，这种效果可能会导致一个次优估计的旋转kSZ效应时，基于星系运动。此外，我们提供了晕自旋质量标度关系，可用于建立一个统计模型的旋转kSZ。旋转kSZ的贡献，这是最大的大规模的非弛豫集群（100 K），可能是相关的高阶CMB温度信号的研究，如移动透镜效应。MACSIS样本的有限质量范围强烈地激发了对大体积模拟中旋转kSZ效应的扩展研究，以改进建模，特别是朝着更低质量和更高红移的方向，并为即将到来的宇宙学CMB实验（例如西蒙斯天文台，SKA-2）和X射线观测（例如雅典娜/X-IFU）提供预测。
The kinetic Sunyaev–Zeldovich (kSZ) effect has now become a clear target for ongoing and future studies of the cosmic microwave background (CMB) and cosmology. Aside from the bulk cluster motion, internal motions also lead to a kSZ signal. In this work, we study the rotational kSZ effect caused by coherent large-scale motions of the cluster medium using cluster hydrodynamic cosmological simulations. To utilize the rotational kSZ as a cosmological probe, simulations offer some of the most comprehensive data sets that can inform the modelling of this signal. In this work, we use the MACSIS data set to investigate the rotational kSZ effect in massive clusters specifically. Based on these models, we test stacking approaches and estimate the amplitude of the combined signal with varying mass, dynamical state, redshift, and map-alignment geometry. We find that the dark matter, galaxy and gas spins are generally misaligned, an effect that can cause a suboptimal estimation of the rotational kSZ effect when based on galaxy motions. Furthermore, we provide halo-spin–mass scaling relations that can be used to build a statistical model of the rotational kSZ. The rotational kSZ contribution, which is largest in massive unrelaxed clusters (≳100K), could be relevant to studies of higher order CMB temperature signals, such as the moving lens effect. The limited mass range of the MACSIS sample strongly motivates an extended investigation of the rotational kSZ effect in large-volume simulations to refine the modelling, particularly towards lower mass and higher redshift, and provide forecasts for upcoming cosmological CMB experiments (e.g. Simons Observatory, SKA-2) and X-ray observations (e.g.Athena/X-IFU).
matplotlib/matplotlib：相对：v3.4.0rc1
DOI：
10.5281/zenodo.4550144
发表时间：
2021
期刊：
Journal of perianesthesia nursing : official journal of the American Society of PeriAnesthesia Nurses
影响因子：
--
作者：
Thomas A Caswell;Michael Droettboom;Antony Lee;Elliott Sales de Andrade;John Hunter;Tim Hoffmann;Eric Firing;Jody Klymak;David Stansby;Nelle Varoquaux;Jens Hedegaard Nielsen;Benjamin Root;Ryan May;Phil Elson;Jouni K. Seppänen;Darren Dale;Jae;Damon McDougall;Andrew D. Straw;Paul Hobson;Christoph Gohlke;Tony S Yu;Eric Ma;Adrien F. Vincent;Hannah;Steven Silvester;Charlie Moad;Nikita Kniazev;Elan Ernest;P. Ivanov
通讯作者：
P. Ivanov