The Atacama Cosmology Telescope: DR6 Sunyaev-Zel’dovich Selected Galaxy Clusters Catalog
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 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mn>5</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mn>14</mml:mn> </mml:msup> </mml:mrow> </mml:math> 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.
Authors
- O. Lahav (ORCID: https://orcid.org/0000-0002-1134-9035)
- Sigurd Næss (ORCID: https://orcid.org/0000-0002-4478-7111)
- E. S. Battistelli (ORCID: https://orcid.org/0000-0001-5210-7625)
- Boris Bolliet (ORCID: https://orcid.org/0000-0003-4922-7401)
- Joseph E. Golec
- D.L Hollowood
- S. R. Hinton (ORCID: https://orcid.org/0000-0003-2071-9349)
- Kenda Knowles (ORCID: https://orcid.org/0000-0002-8452-0825)
- Joshiwa van Marrewijk (ORCID: https://orcid.org/0000-0001-9830-3103)
- E. Gaztanaga
- S. Bocquet (ORCID: https://orcid.org/0000-0002-4900-805X)
- S. Allam (ORCID: https://orcid.org/0000-0002-7069-7857)
- J. L. Marshall (ORCID: https://orcid.org/0000-0003-0710-9474)
- L. N. da Costa (ORCID: https://orcid.org/0000-0002-7731-277X)
- M. R. Smith (ORCID: https://orcid.org/0000-0002-3321-1432)
- Simone Aiola (ORCID: https://orcid.org/0000-0002-1035-1854)
- Martine Lokken (ORCID: https://orcid.org/0000-0001-5917-955X)
- M. Halpern (ORCID: https://orcid.org/0000-0002-1760-0868)
- J. Frieman (ORCID: https://orcid.org/0000-0003-4079-3263)
- D. Gruen (ORCID: https://orcid.org/0000-0003-3270-7644)
- S. Ferraro (ORCID: https://orcid.org/0000-0003-2658-297X)
- Kavilan Moodley
- Jo Dunkley (ORCID: https://orcid.org/0000-0002-7450-2586)
- Amandeep K. Gill (ORCID: https://orcid.org/0000-0002-4252-7682)
- A. A. Plazas (ORCID: https://orcid.org/0000-0002-2598-0514)
- jeannette mcmahon
- Eve M. Vavagiakis (ORCID: https://orcid.org/0000-0002-2105-7589)
- E. Suchyta (ORCID: https://orcid.org/0000-0002-7047-9358)
- A. Porredon (ORCID: https://orcid.org/0000-0002-2762-2024)
- Michael D. Niemack (ORCID: https://orcid.org/0000-0001-7125-3580)
- E. Sánchez (ORCID: https://orcid.org/0009-0002-8310-4173)
- Neta A. Bahcall (ORCID: https://orcid.org/0000-0002-8226-9825)
- Michelle Devlin (ORCID: https://orcid.org/0000-0003-2194-2534)
- Andrina Nicola (ORCID: https://orcid.org/0000-0003-2792-6252)
- Brian J. Koopman (ORCID: https://orcid.org/0000-0003-0744-2808)
- Patricio A. Gallardo (ORCID: https://orcid.org/0000-0001-9731-3617)
- J. Carretero (ORCID: https://orcid.org/0000-0002-3130-0204)
- E. S. Rykoff (ORCID: https://orcid.org/0000-0001-9376-3135)
- Matt Hilton (ORCID: https://orcid.org/0000-0002-8490-8117)
- D. J. James (ORCID: https://orcid.org/0000-0001-5160-4486)
- John Orlowski-Scherer (ORCID: https://orcid.org/0000-0003-1842-8104)
- Damien C. Ragavan
- Maria Estér Pereira (ORCID: https://orcid.org/0000-0003-3987-8032)
- Lyman A. Page (ORCID: https://orcid.org/0000-0002-9828-3525)
- Hironao Miyatake (ORCID: https://orcid.org/0000-0001-7964-9766)
- John P. Hughes (ORCID: https://orcid.org/0000-0002-8816-6800)
- Mathew S. Madhavacheril (ORCID: https://orcid.org/0000-0001-6740-5350)
- Frank J. Qu
- Adriaan J. Duivenvoorden (ORCID: https://orcid.org/0000-0003-2856-2382)
- Suzanne T. Staggs (ORCID: https://orcid.org/0000-0002-7020-7301)
- Íñigo Zubeldía (ORCID: https://orcid.org/0000-0002-1879-4289)
- J. Weller (ORCID: https://orcid.org/0000-0002-8282-2010)
- J. Mena-Fernández (ORCID: https://orcid.org/0000-0001-9497-7266)
- Matthew Hasselfield (ORCID: https://orcid.org/0000-0002-2408-9201)
- A. Carnero Rosell (ORCID: https://orcid.org/0000-0003-3044-5150)
- Arthur Kosowsky (ORCID: https://orcid.org/0000-0002-3734-331X)
- J. De Vicente (ORCID: https://orcid.org/0000-0001-8318-6813)
- Steve K. Choi (ORCID: https://orcid.org/0000-0002-9113-7058)
- K. M. Huffenberger (ORCID: https://orcid.org/0000-0001-7109-0099)
- Will Coulton
- R. A. Gruendl (ORCID: https://orcid.org/0000-0002-4588-6517)
- Erminia Calabrese (ORCID: https://orcid.org/0000-0003-0837-0068)
- J. J. Mohr (ORCID: https://orcid.org/0000-0002-6875-2087)
- Cristobál Sifón (ORCID: https://orcid.org/0000-0002-8149-1352)
- David Bacon (ORCID: https://orcid.org/0000-0002-2562-8537)
- F. Nati (ORCID: https://orcid.org/0000-0002-8307-5088)
- T. M. Davis (ORCID: https://orcid.org/0000-0002-4213-8783)
- R. L. C. Ogando (ORCID: https://orcid.org/0000-0003-2120-1154)
- Carles Sierra (ORCID: https://orcid.org/0000-0003-0839-6233)
- Tony Mroczkowski (ORCID: https://orcid.org/0000-0003-3816-5372)
- M. E. C. Swanson (ORCID: https://orcid.org/0000-0002-1488-8552)
- Adam D. Hincks (ORCID: https://orcid.org/0000-0003-1690-6678)
- Masamune Oguri (ORCID: https://orcid.org/0000-0003-3484-399X)
- David H. Brooks (ORCID: https://orcid.org/0000-0002-2189-9313)
- S. Desai (ORCID: https://orcid.org/0000-0002-0466-3288)
- F. Andrade-Oliveira (ORCID: https://orcid.org/0000-0003-0171-6900)
- Nicholas Battaglia (ORCID: https://orcid.org/0000-0001-5846-0411)
- M. Aguena (ORCID: https://orcid.org/0000-0001-5679-6747)
- J. Colin Hill (ORCID: https://orcid.org/0000-0002-9539-0835)
- M. Costanzi (ORCID: https://orcid.org/0000-0001-8158-1449)
- D. L. Tucker (ORCID: https://orcid.org/0000-0001-7211-5729)
- Edward J. Wollack (ORCID: https://orcid.org/0000-0002-7567-4451)
- Simon Dicker (ORCID: https://orcid.org/0000-0002-1940-4289)
- I. Sevilla-Noarbe (ORCID: https://orcid.org/0000-0002-1831-1953)
- S. Samuroff (ORCID: https://orcid.org/0000-0001-7147-8843)
- Johannes Hubmayr (ORCID: https://orcid.org/0000-0002-2781-9302)
- Bernardita Ried Guachalla (ORCID: https://orcid.org/0000-0002-0418-6258)
- Eunjung Lee (ORCID: https://orcid.org/0000-0001-9989-3555)
- Yan Lin (ORCID: https://orcid.org/0000-0002-0854-899X)
- Matthias Klein (ORCID: https://orcid.org/0000-0002-8248-4488)
- Cristian Vargas (ORCID: https://orcid.org/0000-0001-5327-1400)
- K Honscheid
- R Miquel
- P. Doel
- Bruce Partridge
- A. K. Romer
- N. Weaverdyck
- B Flaugher
- J. Richard Bond (ORCID: https://orcid.org/0000-0003-2358-9949)
- M. Gatti (ORCID: https://orcid.org/0000-0001-6134-8797)
Institutions
- Laboratoire de Physique Subatomique et de Cosmologie (FR)
Publication Details
- Journal
- The Open Journal of Astrophysics
- Published
- 2026-01-27
- DOI
- https://doi.org/10.33232/001c.155863
- Citations
- 1
- Primary Topic
- Astronomy and Astrophysical Research
- Type
- article
- Field-Weighted Citation Impact
- 27.62