阿塔卡玛宇宙学望远镜：DR6 Sunyaev-Zel'dovich 选取的星系团目录
摘要
我们报告了在阿塔卡玛宇宙学望远镜（ACT）数据发布第 6 版（DR6）覆盖 16293 平方度的微波天空图中搜索星系团的结果，采用历届项目（2008-2022）获取的数据。我们报告了 10040 个通过其斯尼亚赫-齐尔德ovich（SZ）效应检测到的星系团，其信噪比大于 4，滤波尺度为 2.4 弧分钟。该目录包含 1180 个红移大于 1 的星系团，以及 124 个红移大于 1.5 的星系团。使用一种与最近弱引力测量一致的星系团 SZ 信号与质量关系，我们估计信噪比大于 5 的星系团样本在质量大于 太阳质量（测量于平均密度为临界密度的 500 倍的球形体积内）时，完整性达到 90%。埃尔戈（El Gordo）——这是一个在最初的 755 平方度 ACT 调查中发现的星系团——仍是该目录中质量和红移最极端的星系团；我们发现没有任何星系团的质量和红移组合足以否定标准 LCDM 宇宙学下以高斯初始扰动的假设。我们公开了多种数据产品，包括完整的星系团候选列表、噪声图和天空掩模，以及用于星系团检测的软件，以及从公开的 ACT 地图复现星系团目录的说明。
引用
@article{arxiv.2507.21459,
title = {The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog},
author = {HSC Collaboration and M. Aguena and S. Aiola and S. Allam and F. Andrade-Oliveira and D. Bacon and N. Bahcall and N. Battaglia and E. S. Battistelli and S. Bocquet and B. Bolliet and J. R. Bond and D. Brooks and E. Calabrese and J. Carretero and S. K. Choi and L. N. da Costa and M. Costanzi and W. Coulton and T. M. Davis and S. Desai and M. J. Devlin and S. Dicker and P. Doel and A. J. Duivenvoorden and J. Dunkley and S. Ferraro and B. Flaugher and J. Frieman and P. A. Gallardo and M. Gatti and E. Gaztanaga and A. S. Gill and J. E. Golec and D. Gruen and R. A. Gruendl and M. Halpern and M. Hasselfield and J. C. Hill and M. Hilton and A. D. Hincks and S. R. Hinton and D. L. Hollowood and K. Honscheid and J. Hubmayr and K. M. Huffenberger and J. P. Hughes and D. J. James and M. Klein and K. Knowles and B. J. Koopman and A. Kosowsky and O. Lahav and E. Lee and Y. Lin and M. Lokken and M. S. Madhavacheril and A. A. Plazas Malagón and J. v. Marrewijk and J. L. Marshall and J. McMahon and J. Mena-Fernández and R. Miquel and H. Miyatake and J. J. Mohr and K. Moodley and T. Mroczkowski and S. Naess and F. Nati and A. Nicola and M. D. Niemack and R. L. C. Ogando and M. Oguri and J. Orlowski-Scherer and L. A. Page and B. Partridge and M. E. da Silva Pereira and A. Porredon and F. J. Qu and D. C. Ragavan and B. Ried Guachalla and A. K. Romer and A. Carnero Rosell and E. S. Rykoff and S. Samuroff and E. Sanchez and I. Sevilla-Noarbe and C. Sierra and C. Sifón and M. Smith and S. T. Staggs and E. Suchyta and M. E. C. Swanson and D. L. Tucker and C. Vargas and E. M. Vavagiakis and J. De Vicente and N. Weaverdyck and J. Weller and E. J. Wollack and I. Zubeldia},
journal= {arXiv preprint arXiv:2507.21459},
year = {2026}
}
备注
25 pages, 21 figures. Published in the Open Journal of Astrophysics. All v1.0 data products now available on LAMBDA at https://lambda.gsfc.nasa.gov/product/act/actadv_dr6_szcluster_catalog_get.html ; for details of differences compared to the previous v0.11/arXiv v2 release, see the Change Log on LAMBDA at https://lambda.gsfc.nasa.gov/product/act/actadv_dr6_szcluster_catalog_info.html