The Atacama Cosmology Telescope: DR6 Sunyaev-Zel’dovich Selected Galaxy Clusters Catalog

作者：M. Aguena, Simone Aiola, S. Allam, F. Andrade-Oliveira, David Bacon, Neta A. Bahcall, Nicholas Battaglia, E. S. Battistelli, S. Bocquet, Boris Bolliet, J. Richard Bond, David H. Brooks, Erminia Calabrese, J. Carretero, Steve K. Choi, L. N. da Costa, M. Costanzi, Will Coulton, T. M. Davis, S. Desai, Michelle Devlin, Simon Dicker, P. Doel, Adriaan J. Duivenvoorden, Jo Dunkley, S. Ferraro, B Flaugher, J. Frieman, Patricio A. Gallardo, M. Gatti, E. Gaztanaga, Amandeep K. Gill, Joseph E. Golec, D. Gruen, R. A. Gruendl, M. Halpern, Matthew Hasselfield, J. Colin Hill, Matt Hilton, Adam D. Hincks, S. R. Hinton, D.L Hollowood, K Honscheid, Johannes Hubmayr, K. M. Huffenberger, John P. Hughes, D. J. James, Matthias Klein, Kenda Knowles, Brian J. Koopman, Arthur Kosowsky, O. Lahav, Eunjung Lee, Yan Lin, Martine Lokken, Mathew S. Madhavacheril, A. A. Plazas Malagón, Joshiwa van Marrewijk, J. L. Marshall, jeannette mcmahon, J. Mena-Fernández, R Miquel, Hironao Miyatake, J. J. Mohr, Kavilan Moodley, Tony Mroczkowski, Sigurd Næss, F. Nati, Andrina Nicola, Michael D. Niemack, R. L. C. Ogando, Masamune Oguri, John Orlowski-Scherer, Lyman A. Page, Bruce Partridge, Maria Estér Pereira, A. Porredon, Frank J. Qu, Damien C. Ragavan, Bernardita Ried Guachalla, A. K. Romer, A. Carnero Rosell, E. S. Rykoff, S. Samuroff, E. Sánchez, I. Sevilla-Noarbe, Carles Sierra, Cristobál Sifón, M. Smith, Suzanne T. Staggs, E. Suchyta, M. E. C. Swanson, D. L. Tucker, Cristian Vargas, Eve M. Vavagiakis, J. De Vicente, N. Weaverdyck, J. Weller, Edward J. Wollack, Íñigo Zubeldía · 发表于：The Open Journal of Astrophysics · 年份：2026 · DOI：10.33232/001c.155863 · 被引用次数：8 · 研究领域：Astronomy and Astrophysical Research、Astronomical Observations and Instrumentation、History and Developments in Astronomy

We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequency bands, using data obtained over the lifetime of the project (2008-2022). We report redshifts and mass estimates for 10040 clusters detected via their Sunyaev-Zel’dovich (SZ) effect with signal-to-noise greater than 4 at a 2.4 arcminute filter scale. The catalog includes 1180 clusters at redshifts greater than 1, and 123 clusters at redshifts greater than 1.5. Using a relation between cluster SZ signal and mass that is consistent with recent weak-lensing measurements, we estimate that clusters detected with signal-to-noise greater than 5 form a sample which is 90% complete for clusters with masses greater than 5 × 10 14 MSun (measured within a spherical volume with mean density 500 times the critical density). El Gordo, a cluster found in an initial ACT survey of 755 square degrees, remains the most extreme cluster in mass and redshift; we find no cluster with a mass and redshift combination high enough to falsify the standard LCDM cosmology with Gaussian initial perturbations. We make public a variety of data products, including the full cluster candidate list, noise maps, and sky masks, along with our software for cluster detection and instructions for reproducing our cluster catalogs from the public ACT maps.