The Atacama Cosmology Telescope: DR6 maps

Naess, Sigurd, Guan, Yilun, Duivenvoorden, Adriaan J., Hasselfield, Matthew, Wang, Yuhan, Abril-Cabezas, Irene, Addison, Graeme E., Ade, Peter A.R. ORCID: https://orcid.org/0000-0002-5127-0401, Aiola, Simone, Alford, Tommy, Alonso, David, Amiri, Mandana, An, Rui, Atkins, Zachary, Austermann, Jason E., Barbavara, Eleonora, Battaglia, Nicholas, Battistelli, Elia Stefano, Beall, James A., Bean, Rachel, Beheshti, Ali, Beringue, Benjamin, Bhandarkar, Tanay, Biermann, Emily, Bolliet, Boris, Bond, J Richard, Calabrese, Erminia ORCID: https://orcid.org/0000-0003-0837-0068, Capalbo, Valentina, Carrero, Felipe, Chen, Stephen, Chesmore, Grace, Cho, Hsiao-mei, Choi, Steve K., Clark, Susan E., Rosado, Rodrigo Cordova, Cothard, Nicholas F., Coughlin, Kevin, Coulton, William, Crichton, Devin, Crowley, Kevin T., Devlin, Mark J., Dicker, Simon, Duell, Cody J., Duff, Shannon M., Dunkley, Jo, Dunner, Rolando, Embil Villagra, Carmen, Fankhanel, Max, Farren, Gerrit S., Ferraro, Simone, Foster, Allen, Freundt, Rodrigo, Fuzia, Brittany, Gallardo, Patricio A., Garrido, Xavier, Giardiello, Serena, Gill, Ajay, Givans, Jahmour, Gluscevic, Vera, Golec, Joseph E., Gong, Yulin, Halpern, Mark, Harrison, Ian ORCID: https://orcid.org/0000-0002-4437-0770, Healy, Erin, Henderson, Shawn, Hensley, Brandon, Hervías-Caimapo, Carlos, Hill, J. Colin, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hložek, Renée, Ho, Shuay-Pwu Patty, Hood, John, Hornecker, Erika, Huber, Zachary B., Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Ikape, Margaret, Irwin, Kent, Isopi, Giovanni, Jense, Hidde T., Joshi, Neha, Keller, Ben, Kim, Joshua, Knowles, Kenda, Koopman, Brian J., Kosowsky, Arthur, Kramer, Darby, Kusiak, Aleksandra, La Posta, Adrien, Laguë, Alex, Lakey, Victoria, Lee, Eunseong, Li, Yaqiong, Li, Zack, Limon, Michele, Lokken, Martine, Louis, Thibaut, Lungu, Marius, MacCrann, Niall, MacInnis, Amanda, Madhavacheril, Mathew S., Maldonado, Diego, Maldonado, Felipe, Mallaby-Kay, Maya, Marques, Gabriela A., van Marrewijk, Joshiwa, McCarthy, Fiona, McMahon, Jeff, Mehta, Yogesh, Menanteau, Felipe, Moodley, Kavilan, Morris, Thomas W., Mroczkowski, Tony, Namikawa, Toshiya, Nati, Federico, Nerval, Simran K., Newburgh, Laura, Nicola, Andrina, Niemack, Michael D., Nolta, Michael R., Orlowski-Scherer, John, Page, Lyman A., Pandey, Shivam, Partridge, Bruce, Perez Sarmiento, Karen, Prince, Heather, Puddu, Roberto, Qu, Frank J., Ragavan, Damien C., Ried Guachalla, Bernardita, Rogers, Keir K., Rojas, Felipe, Sakuma, Tai, Schaan, Emmanuel, Schmitt, Benjamin L., Sehgal, Neelima, Shaikh, Shabbir, Sherwin, Blake D., Sierra, Carlos, Sievers, Jon, Sifón, Cristóbal, Simon, Sara, Sonka, Rita, London, Alexander Spencer, Spergel, David N., Staggs, Suzanne T., Storer, Emilie, Surrao, Kristen, Switzer, Eric R., Tampier, Niklas, Thornton, Robert, Trac, Hy, Tucker, Carole ORCID: https://orcid.org/0000-0002-1851-3918, Ullom, Joel, Vale, Leila R., Van Engelen, Alexander, Van Lanen, Jeff, Vargas, Cristian, Vavagiakis, Eve M., Wagoner, Kasey, Wenzl, Lukas, Wollack, Edward J., Zheng, Kaiwen and The Atacama Cosmology Telescope collaboration, . 2025. The Atacama Cosmology Telescope: DR6 maps. Journal of Cosmology and Astroparticle Physics 2025 (11) , 061. 10.1088/1475-7516/2025/11/061

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Abstract

We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three frequency bands centered on 98, 150 and 220 GHz. The maps are based on data collected with the AdvancedACT camera over the period 2017–2022 and cover 19,000 square degrees with a median combined depth of 10 μK arcmin. We describe the instrument, mapmaking and map properties and illustrate them with a number of figures and tables. The ACT DR6 maps and derived products are available on LAMBDA at https://lambda.gsfc.nasa.gov/product/act/actadv_prod_table.html. We also provide an interactive web atlas at https://phy-act1.princeton.edu/public/snaess/actpol/dr6/atlas and HiPS data sets in Aladin (e.g. https://alasky.cds.unistra.fr/ACT/DR4DR6/color_CMB).

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Additional Information:	License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/, Type: cc-by
Publisher:	IOP Publishing
Date of Acceptance:	25 August 2025
Last Modified:	27 Nov 2025 09:56
URI:	https://orca.cardiff.ac.uk/id/eprint/182698

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