CHEX-MATE: Are we getting cluster thermodynamics right?
University of Geneva（日内瓦大学）；INAF – Osservatorio Astronomico di Trieste（意大利国家天体物理研究所的里雅斯特天文台）；University of Michigan（密歇根大学）；The University of Manchester（曼彻斯特大学）；Excellence Cluster ORIGINS（ORIGINS卓越集群）；Ludwig-Maximilians-Universität München（慕尼黑大学）；Max-Planck-Institut für Astrophysik（马克斯·普朗克天体物理学研究所）；IFPU, Institute for Fundamental Physics of the Universe（宇宙基础物理研究所）；INAF, Osservatorio di Astrofisica e Scienza dello Spazio（意大利国家天体物理研究所空间科学与天体物理观测站）；Università di Roma ‘Tor Vergata’（罗马托维加塔大学）；INFN, Sezione di Roma ‘Tor Vergata’（意大利国家核物理研究所罗马托维加塔分部）
R. Seppi, D. Eckert, E. Rasia, S. T. Kay, K. Dolag, V. Biffi, Y. E. Bahar, H. Bourdin, F. De Luca, M. De Petris, S. Ettori, M. Gaspari, F. Gastaldello, V. Ghira… 展开作者
R. Seppi, D. Eckert, E. Rasia, S. T. Kay, K. Dolag, V. Biffi, Y. E. Bahar, H. Bourdin, F. De Luca, M. De Petris, S. Ettori, M. Gaspari, F. Gastaldello, V. Ghirardini, L. Lovisari, P. Mazzotta, G. W. Pratt, E. Pointecouteau, M. Rossetti, J. Sayers, M. Sereno, G. Yepes
Galaxy clusters offer powerful insights into the large-scale structure of the Universe and the physics of baryons in hot state. Their scientific exploitation, however, hinges on our ability to accurately measure key thermodynamic properties. In this work, we aim to assess the reliability of current analysis techniques in reconstructing these properties, with particular focus on samples similar to those observed in the Cluster HEritage project with XMM-Newton (CHEX-MATE). We develop a suite of dedicated end-to-end simulations of CHEX-MATE-like clusters selected from large scale hydrodynamical simulations, and processed through a newly developed realistic XMM-Newton simulator. We apply a full X-ray data analysis pipeline to the mock datasets, including imaging, spectral fitting, and profile reconstruction. The gas density profiles can be robustly recovered across a wide radial range, when using azimuthal mean surface brightness profiles. Our reconstruction techniques are able to reproduce the intrinsic density profile with the correct scatter, with deviations of at most 10% between 0.1 and 1xR500c. The gas mass is reconstructed with better than 1% accuracy. Accurate measurement of temperature profiles is more challenging and possibly subject to biases, particularly in the presence of azimuthal variations and multi-temperature gas along the line of sight, which dominate over projection effects. Our results highlight the need for caution in interpreting cluster temperature measurements and underscore the value of tailored mock observations for understanding observational systematics. These findings also suggest that biases in X-ray temperature measurements may alter the interpretation of the thermodynamical state of the intra-cluster medium, an outlook particularly relevant in light of recent low velocity measurements from the XRISM mission.
CHEX-MATE: The Impact of Triaxiality and Orientation on Planck SZ Cluster Selection and Weak Lensing Mass Measurements
California Institute of Technology（加州理工学院）；IRFU, CEA, Université Paris-Saclay（IRFU，CEA，巴黎萨克雷大学）；Smithsonian Astrophysical Observatory（史密森尼天体物理台）；Department of Physics, Korea Advanced Institute of Science and Technology (KAIST)（韩国科学技术院物理系）；Department of Astronomy, University of Geneva（日内瓦大学天文系）；Department of Physics, Informatics and Mathematics, University of Modena and Reggio Emilia（摩德纳和雷焦艾米利亚大学物理、信息学和数学系）；INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano（意大利国家天体物理研究所米兰空间天体物理学与宇宙物理学研究所）
CHEX-MATE: Relationship between X-ray and millimetre inferences of galaxy cluster temperature profiles
Università di Roma ‘Tor Vergata’（罗马托尔维加塔大学）；INFN, Sezione di Roma ‘Tor Vergata’（罗马大学 INFN 分部）；Space Science Data Center, Italian Space Agency（意大利航天局空间数据中心）；High Energy Physics Division, Argonne National Laboratory（阿贡国家实验室高能物理部）；Sapienza Università di Roma（罗马第一大学）；University of Geneva（日内瓦大学）；INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna（博洛尼亚天文物理与空间科学研究所）；INFN, Sezione di Bologna（博洛尼亚 INFN 分部）；Università degli Studi di Napoli Federico II（那不勒斯费德里科二世大学）
CHEX-MATE: X-ray surface brightness discontinuities across a representative cluster sample
Argonne National Laboratory（阿贡国家实验室）；INAF, Osservatorio di Astrofisica e Scienza dello Spazio（意大利国家天体物理研究所，空间科学与天体物理观测站）；INFN, Sezione di Bologna（意大利国家核物理研究所，博洛尼部分部）；INAF – IASF Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano（意大利国家天体物理研究所，米兰空间天体物理与宇宙物理研究所）；Center for Astrophysics | Harvard & Smithsonian（哈佛史密森尼天体物理中心）；Dipartimento di Fisica, Università di Roma ‘Tor Vergata’（罗马托尔维加塔大学物理系）；INFN, Sezione di Roma ‘Tor Vergata’（意大利国家核物理研究所，罗马托尔维加塔部分部）
CHEX-MATE: New detections and properties of the radio diffuse emission in massive clusters with MeerKAT
Università di Bologna（博洛尼亚大学）；INAF - IASF Milano（意大利国家天体物理研究所米兰天文物理研究所）；DiSAT, Università degli Studi dell’Insubria（因苏布里亚大学地球与环境科学系）；INAF - IRA（意大利国家天体物理研究所雷焦艾米利亚天文台）；INAF - Osservatorio Astronomico di Brera（意大利国家天体物理研究所布雷拉天文台）；INFN, Sezione di Bologna（意大利国家核物理研究所博洛尼亚分部）；University of Modena and Reggio Emilia（摩德纳和雷焦艾米利亚大学）；Curtin Institute for Data Science, Curtin University（科廷大学数据科学研究所）
CHEX-MATE: AMALGAM weak-lensing analysis of 41 Planck Sunyaev-Zel'dovich-selected galaxy clusters
Academia Sinica Institute of Astronomy and Astrophysics（中央研究院天文及天文物理研究所）；Laboratoire d’Astrophysique de Marseille, Aix-Marseille Univ.（马赛天文物理实验室，艾克斯-马赛大学）；Institut d’Astrophysique de Paris, UMR 7095, CNRS & Sorbonne Université（巴黎天文物理研究所，CNRS与索邦大学）；INAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna（意大利国家天体物理研究所博洛尼亚天文物理与空间科学观测站）；INFN, Sezione di Bologna（意大利国家核物理研究所博洛尼亚分部）；Department of Physical Science, Hiroshima University（广岛大学理学部）；Hiroshima Astrophysical Science Center, Hiroshima University（广岛大学广岛天体物理科学中心）；Core Research for Energetic Universe, Hiroshima University（广岛大学宇宙高能核心研究中心）；Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM（巴黎萨克雷大学、巴黎西岱大学、法国原子能和替代能源委员会、CNRS、AIM）；Sorbonne Université（索邦大学）
CHEX-MATE: towards a consistent universal pressure profile and cluster mass reconstruction
IRAP, CNRS, Université de Toulouse, CNES, UT3-UPS（IRAP, 法国国家科学研究中心, 图卢兹大学）；Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM（巴黎萨克雷大学, 巴黎西岱大学, 法国原子能和替代能源委员会, 法国国家科学研究中心）；Université Grenoble Alpes, CNRS, LPSC-IN2P3（格勒诺布尔阿尔卑斯大学, 法国国家科学研究中心）；Université Paris-Saclay, CNRS, Institut d’Astrophysique Spatiale（巴黎萨克雷大学, 法国国家科学研究中心, 空间天体物理研究所）；INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano（意大利国家天体物理研究所, 米兰空间天体物理与宇宙物理研究所）；Dipartimento di Fisica, Università degli studi di Roma Tor Vergata（罗马托尔维加塔大学物理系）；INFN, Sezione di Roma ‘Tor Vergata’（意大利国家核物理研究所, 罗马托尔维加塔分部）；Sapienza Università di Roma（罗马智慧大学）
CHEX-MATE: Cluster Multi-Probes in Three Dimensions (CLUMP-3D) II. Combined Gas and Dark Matter Analysis from X-ray, SZE, and WL
California Institute of Technology（加州理工学院）；Korea Advanced Institute of Science and Technology (KAIST)（韩国科学技术院）；INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna（意大利国家天体物理研究所博洛尼亚天文与空间科学观测站）；INFN, Sezione di Bologna（意大利国家核物理研究所博洛尼亚分部）；Université Paris Saclay（巴黎萨克雷大学）；Department of Astronomy, University of Geneva（日内瓦大学天文学系）；Academia Sinica Institute of Astronomy and Astrophysics (ASIAA)（中央研究院天文及天文物理研究所）；Dipartimento di Fisica, Università degli studi di Roma Tor Vergata（罗马托尔维加塔大学物理系）；INFN, Sezione di Roma ‘Tor Vergata’（意大利国家核物理研究所罗马‘托尔维加塔’分部）
Baryonification IV: Constraining baryonic feedback with X-ray gas fractions
ETH Zurich（苏黎世联邦理工学院）；The University of Manchester（曼彻斯特大学）；University of Zurich（苏黎世大学）；Stockholm University（斯德哥尔摩大学）；University of Groningen（格罗宁根大学）；Universität Bonn（波恩大学）；Max Planck Institute for Extraterrestrial Physics（马克斯·普朗克地外物理研究所）；Ludwig-Maximilians-Universität（慕尼黑大学）；CNES（法国国家空间研究中心）；IRAP（天体物理学研究所在）；Beijing Normal University（北京师范大学）
