与XMM-Newton的聚类遗产项目：结构形成端点处的质量组装和热力学。 I.程序概述

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与XMM-Newton的聚类遗产项目：结构形成端点处的质量组装和热力学。 I.程序概述

The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation. I. Programme overview

论文作者

MATE Collaboration, Arnaud, M., Ettori, S., Pratt, G. W., Rossetti, M., Eckert, D., Gastaldello, F., Gavazzi, R., Kay, S. T., Lovisari, L., Maughan, B. J., Pointecouteau, E., Sereno, M., Bartalucci, I., Bonafede, A., Bourdin, H., Cassano, R., Duffy, R. T., Iqbal, A., Maurogordato, S., Rasia, E., Sayers, J., Andrade-Santos, F., Aussel, H., Barnes, D. J., Barrena, R., Borgani, S., Burkutean, S., Clerc, N., Corasaniti, P. -S., Cuillandre, J. -C., De Grandi, S., De Petris, M., Dolag, K., Donahue, M., Ferragamo, A., Gaspari, M., Ghizzardi, S., Gitti, M., Haines, C. P., Jauzac, M., Johnston-Hollitt, M., Jones, C., Kéruzoré, F., Brun, A. M. C. Le, Mayet, F., Mazzotta, P., Melin, J. -B., Molendi, S., Nonino, M., Okabe, N., Paltani, S., Perotto, L., Pires, S., Radovich, M., Rubino-Martin, J. -A., Salvati, L., Saro, A., Sartoris, B., Schellenberger, G., Streblyanska, A., Tarrio, P., Tozzi, P., Umetsu, K., van der Burg, R. F. J., Vazza, F., Venturi, T., Yepes, G., Zarattini, S.

论文摘要

与XMM-Newton的聚类遗产项目 - 结构形成端（Chex-Mate）处于大规模组装和热力学，是一个三秒钟的多年多年遗产计划，可获得X射线观察，可通过Sunyaev-selov-seed sealov-seelov-seed效应，对Planck检测到的118个星系群检测到的118个星系群体对118个星系群体检测到的X射线观察。该程序在本文中详细描述，旨在研究时间和质量形成结构的最终产物。它由形成的最新物体的普查（tier-1：0.05 <z <0.2; 2 x 10e14 m_sun <m_500 <m_500 <9 x 10e14 m_sun），以及一个宇宙中最高质量对象的样本（tier-2：z <0.6; z <0.6; m_500> 7.25 x 10ee14 m_ss）。该程序将对潜在人群的统计特性产生准确的视觉效果，测量如何通过塌陷到暗物质晕中塑造气体特性，揭示非重力加热的出处，并解决限制群集团在宇宙学参数估计中使用质量确定的主要不确定性。我们将获得均匀深度的X射线暴露，旨在在静水假设下获得精确至15-20％的单个质量测量。我们介绍了项目的动机，描述程序定义，并详细介绍正在进行的多波长观测（镜头，SZ，无线电）和为支持该项目的理论工作。

The Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of structure formation (CHEX-MATE) is a three mega-second Multi-Year Heritage Programme to obtain X-ray observations of a minimally-biased, signal-to-noise limited sample of 118 galaxy clusters detected by Planck through the Sunyaev-Zeldovich effect. The programme, described in detail in this paper, aims to study the ultimate products of structure formation in time and mass. It is composed of a census of the most recent objects to have formed (Tier-1: 0.05 < z < 0.2; 2 x 10e14 M_sun < M_500 < 9 x 10e14 M_sun), together with a sample of the highest-mass objects in the Universe (Tier-2: z < 0.6; M_500 > 7.25 x 10e14 M_sun). The programme will yield an accurate vision of the statistical properties of the underlying population, measure how the gas properties are shaped by collapse into the dark matter halo, uncover the provenance of non-gravitational heating, and resolve the major uncertainties in mass determination that limit the use of clusters for cosmological parameter estimation. We will acquire X-ray exposures of uniform depth, designed to obtain individual mass measurements accurate to 15-20% under the hydrostatic assumption. We present the project motivations, describe the programme definition, and detail the ongoing multi-wavelength observational (lensing, SZ, radio) and theoretical effort that is being deployed in support of the project.

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