The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes
I Abril-Cabezas, S Adachi, P Ade, AE Adler, P Agrawal, J Aguirre, S Aiola, T Alford, A Ali, D Alonso, MA Alvarez, R An, M Aravena, K Arnold, P Ashton, F Astori, Z Atkins, J Austermann, S Azzoni, C Baccigalupi, D Baker, R Balafendiev, AB Lizancos, D Barron, P Barry, J Bartlett, A Basyrov, N Battaglia, ES Battistelli, R Battye, A Bayer, A Bazarko, JA Beall, R Bean, D Beck, S Beckman, J Begin, A Beheshti, B Beringue, T Bhandarkar, S Bhimani, F Bianchini, E Biermann, M Billi, S Biquard, B Bixler, L Bizzarri, S Boada, D Boettger, B Bolliet, JR Bond, J Borrill, J Borrow, C Braithwaite, TLR Brien, ML Brown, SM Bruno, S Bryan, R Bustos, H Cai, E Calabrese, V Calafut, FM Carl, A Carones, J Carron, A Challinor, E Chamberlain, P Chanial, N Chen, K Cheung, B Chiang, Y Chinone, J Chluba, HS Cho, SK Choi, M Chu, J Clancy, SE Clark, P Clarke, J Cleary, DL Clements, J Connors, C Contaldi, G Coppi, L Corbett, NF Cothard, W Coulton, D Crichton, KD Crowley, KT Crowley, A Cukierman, JM D'Ewart, N Dachlythra, O Darwish, R Datta, S Day-Weiss, T de Haan, S Desai, M Devlin, L Di Mascolo, S Dicker, K Ding, C Doux, P Dow, S Doyle, CJ Duell, SM Duff, AJ Duivenvoorden, J Dunkley, M Duparc, D Dutcher, R Dünner, M Edenton, HE Bouhargani, CE Villagra, J Errard, G Fabbian, V Fanfani, FF Khouzani, GS Farren, J Fergusson, S Ferraro, R Flauger, M Forconi, A Foster, K Freese, JC Frisch, A Frolov, G Fuller, N Galitzki, PA Gallardo, G Galloni, JTG Ghersi, K Ganga, X Garrido, E Gawiser, M Gerbino, R Gerras, S Giardiello, A Gill, V Gilles, U Giri, E Gleave, V Gluscevic, N Goeckner-Wald, S Goldstein, JE Golec, S Gordon, M Gralla, S Gratton, D Green, JC Groh, C Groppi, S Grubb, Y Guan, N Gupta, JE Gudmundsson, B Hadzhiyska, S Hagstotz, P Hargrave, S Haridas, K Harrington, I Harrison, M Hasegawa, M Hasselfield, V Haynes, M Hazumi, A He, E Healy, SW Henderson, BS Hensley, E Hertig, C Hervías-Caimapo, M Higuchi, CA Hill, JC Hill, M Hilton, AD Hincks, G Hinshaw, R Hložek, AYQ Ho, S Ho, SP Ho, TD Hoang, J Hoh, J Holder, J Hood, E Hornecker, AL Hornsby, SC Hotinli, Z Huang, ZB Huber, J Hubmayr, K Huffenberger, A Hughes, JP Hughes, AI Lonappan, M Ikape, K Inaba, K Irwin, J Iuliano, AH Jaffe, B Jain, D Jain, HT Jense, O Jeong, A Johnson, BR Johnson, M Johnson, ME Jones, N Joshi, B Jost, W Kabalan, V Kabra, D Kaneko, J Kania, ED Karpel, Y Kasai, N Katayama, B Keating, B Keller, R Keskitalo, AA Khatua, J Kim, T Kisner, K Kiuchi, K Knowles, AM Kofman, Y Koizumi, BJ Koopman, A Kosowsky, R Kou, N Krachmalnicoff, D Kramer, A Krishak, A Krolewski, A Kusaka, A Kusiak, Y Kvasiuk, P La Plante, A La Posta, A Laguë, A Lai, J Lashner, M Lattanzi, A Lee, E Lee, J Leech, L Legrand, C Lessler, JS Leung, A Lewis, Y Li, Z Li, M Limon, L Lin, E Linder, M Link, J Liu, Y Liu, J Lloyd, J Lonergan, T Louis, T Lucas, M Ludlam, M Lungu, M Lyons, N MacCrann, A MacInnis, M Madhavacheril, D Mak, F Maldonado, M Mallaby-Kay, A Manduca, A Mangu, H Mani, AS Maniyar, GA Marques, P Masson, J Mates, J Mathewson, T Matsumura, P Mauskopf, A May, N McCallum, H McCarrick, F McCarthy, M McCrackan, M McCulloch, J McMahon, PD Meerburg, Y Mehta, J Melin, E Meulbroek, J Meyers, A Middleton, Y Miki, A Miller, M Mirmelstein, Y Mizozoe, B Mohammadian, G Montefalcone, K Moodley, J Moore, T Morris, M Morshed, T Morton, E Moser, T Mroczkowski, M Murata, J Myers, M Münchmeyer, S Naess, H Nakata, T Namikawa, M Nashimoto, F Nati, P Natoli, M Negrello, SK Nerval, L Newburgh, DV Nguyen, A Nicola, MD Niemack, H Nishino, Y Nishinomiya, A Novelli, S O'Neill, N Okumoto, A Orlando, J Orlowski-Scherer, L Pagano, LA Page, S Pandey, A Papageorgiou, I Paraskevakos, B Partridge, D Patel, R Patki, SP Korte, M Peel, KP Sarmiento, F Perrotta, P Phakathi, L Piccirillo, E Pierpaoli, T Pinsonneault-Marotte, G Pisano, J Pitocco, D Poletti, C Popik, B Prasad, R Puddu, G Puglisi, FJ Qu, F Rahman, MJ Randall, C Ranucci, C Raum, R Reeves, CL Reichardt, M Remazeilles, X Ren, Y Rephaeli, D Riechers, BR Guachalla, A Rizzieri, J Robe, MF Robertson, N Robertson, K Rogers, F Rojas, A Romero, E Rosenberg, A Rotti, S Rowe, A Roy, S Sadeh, N Sailer, K Sakaguri, T Sakuma, Y Sakurai, M Salatino, GH Sanders, D Sasaki, MS Rao, TP Satterthwaite, LJ Saunders, L Scalcinati, E Schaan, B Schmitt, M Schmittfull, N Sehgal, J Seibert, Y Seino, U Seljak, S Shaikh, E Shaw, P Shellard, B Sherwin, M Shimon, JE Shroyer, C Sierra, J Sievers, C Sifón, P Sikhosana, M Silva-Feaver, SM Simon, A Sinclair, K Smith, W Sohn, X Song, RF Sonka, T Souverin, J Spisak, ST Staggs, G Stein, JR Stevens, R Stompor, E Storer, R Sudiwala, Y Sueno, J Sugiyama, P Suman, KM Surrao, S Sutariya, A Suzuki, J Suzuki, O Tajima, R Takaku, S Takakura, A Takeuchi, I Tansieri, AC Taylor, G Teply, T Terasaki, A Thomas, DB Thomas, R Thornton, P Timbie, H Trac, T Tsan, ETK Sang, C Tucker, J Ullom, L Vacher, L Vale, A van Engelen, J Van Lanen, J van Marrewijk, DD Van Winkle, C Vargas, EM Vavagiakis, I Veenendaal, C Vergès, AV Aguilar, M Vissers, M Viña, K Wagoner, S Walker, L Walters, Y Wang, B Westbrook, J Williams, P Williams, J Wilson, H Winch, EJ Wollack, K Wolz, J Wong, Z Xu, K Yamada, E Young, B Yu, C Yu, G Zagatti, M Zannoni, W Zhang, K Zheng, N Zhu, A Zonca, I Zubeldia, TSO collaboration
– Journal of Cosmology and Astroparticle Physics
(2026)
2026,
Unified and Consistent Structure Growth Measurements from Joint ACT, SPT, and Planck CMB Lensing
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– Phys Rev Lett
(2026)
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The Atacama Cosmology Telescope: high-redshift measurement of structure growth from the cross-correlation of Quaia quasars and CMB lensing from ACT DR6 and Planck PR4
CE Villagra, G Farren, G Fabbian, B Bolliet, I Abril-Cabezas, D Alonso, A Challinor, J Dunkley, J Kim, N MacCrann, F McCarthy, K Moodley, FJ Qu, B Sherwin, C Sifón, A van Engelen, EJ Wollack
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
An iterative CMB lensing estimator minimizing instrumental noise bias
L Legrand, B Sherwin, A Challinor, J Carron, GS Farren
– Physical Review D
(2025)
112,
The Atacama Cosmology Telescope: A demonstration of CMB lensing measurement from daytime data
I Abril-Cabezas, FJ Qu, J Kim, MS Madhavacheril, K Perez-Sarmiento, Z Atkins, E Calabrese, A Challinor, MJ Devlin, AJ Duivenvoorden, J Dunkley, AV Engelen, S Ferraro, E Finson, C Hervías-Caimapo, M Hilton, A Kosowsky, A Kusiak, T Louis, N MacCrann, K Moodley, T Namikawa, S Naess, LA Page, AL Posta, E Schaan, N Sehgal, BD Sherwin, CE Sierra, C Sifón, ST Staggs, E Storer, EJ Wollack
(2025)
A halo model of extragalactic contamination to CMB lensing, delensing, and cross-correlations
AB Lizancos, W Coulton, A Challinor, BD Sherwin, Y Mehta
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
Extracting cosmological information from the abundance of galaxy clusters with simulation-based inference
Í Zubeldia, B Bolliet, A Challinor, W Handley
– Physical Review D
(2025)
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The Simons Observatory: science goals and forecasts for the enhanced Large Aperture Telescope
M Abitbol, I Abril-Cabezas, S Adachi, P Ade, AE Adler, P Agrawal, J Aguirre, Z Ahmed, S Aiola, T Alford, A Ali, D Alonso, MA Alvarez, R An, K Arnold, P Ashton, Z Atkins, J Austermann, S Azzoni, C Baccigalupi, AB Lizancos, D Barron, P Barry, J Bartlett, N Battaglia, R Battye, E Baxter, A Bazarko, JA Beall, R Bean, D Beck, S Beckman, J Begin, A Beheshti, B Beringue, T Bhandarkar, S Bhimani, F Bianchini, E Biermann, S Biquard, B Bixler, S Boada, D Boettger, B Bolliet, JR Bond, J Borrill, J Borrow, C Braithwaite, TLR Brien, ML Brown, SM Bruno, S Bryan, R Bustos, H Cai, E Calabrese, V Calafut, FM Carl, A Carones, J Carron, A Challinor, P Chanial, N Chen, K Cheung, B Chiang, Y Chinone, J Chluba, HS Cho, SK Choi, M Chu, J Clancy, SE Clark, P Clarke, J Cleary, DL Clements, J Connors, C Contaldi, G Coppi, L Corbett, NF Cothard, W Coulton, KD Crowley, KT Crowley, A Cukierman, JM D'Ewart, K Dachlythra, R Datta, S Day-Weiss, T de Haan, M Devlin, L Di Mascolo, S Dicker, B Dober, C Doux, P Dow, S Doyle, CJ Duell, SM Duff, AJ Duivenvoorden, J Dunkley, D Dutcher, R Dünner, M Edenton, HE Bouhargani, J Errard, G Fabbian, V Fanfani, GS Farren, J Fergusson, S Ferraro, R Flauger, A Foster, K Freese, JC Frisch, A Frolov, G Fuller, N Galitzki, PA Gallardo, JTG Ghersi, K Ganga, J Gao, X Garrido, E Gawiser, M Gerbino, R Gerras, S Giardiello, A Gill, V Gilles, U Giri, E Gleave, V Gluscevic, N Goeckner-Wald, JE Golec, S Gordon, M Gralla, S Gratton, D Green, JC Groh, C Groppi, Y Guan, N Gupta, JE Gudmundsson, S Hagstotz, P Hargrave, S Haridas, K Harrington, I Harrison, M Hasegawa, M Hasselfield, V Haynes, M Hazumi, A He, E Healy, SW Henderson, BS Hensley, E Hertig, C Hervías-Caimapo, M Higuchi, CA Hill, JC Hill, G Hilton, M Hilton, AD Hincks, G Hinshaw, R Hložek, AYQ Ho, S Ho, SP Ho, TD Hoang, J Hoh, E Hornecker, AL Hornsby, SC Hotinli, Z Huang, ZB Huber, J Hubmayr, K Huffenberger, JP Hughes, AI Lonappan, M Ikape, K Irwin, J Iuliano, AH Jaffe, B Jain, HT Jense, O Jeong, A Johnson, BR Johnson, M Johnson, M Jones, B Jost, D Kaneko, ED Karpel, Y Kasai, N Katayama, B Keating, B Keller, R Keskitalo, J Kim, T Kisner, K Kiuchi, J Klein, K Knowles, AM Kofman, BJ Koopman, A Kosowsky, R Kou, N Krachmalnicoff, D Kramer, A Krishak, A Krolewski, A Kusaka, A Kusiak, P La Plante, A La Posta, A Laguë, J Lashner, M Lattanzi, A Lee, E Lee, J Leech, C Lessler, JS Leung, A Lewis, Y Li, Z Li, M Limon, L Lin, M Link, J Liu, Y Liu, J Lonergan, T Louis, T Lucas, M Ludlam, M Lungu, M Lyons, N MacCrann, A MacInnis, M Madhavacheril, D Mak, F Maldonado, M Mallaby-Kay, A Manduca, A Mangu, H Mani, AS Maniyar, GA Marques, J Mates, T Matsumura, P Mauskopf, A May, N McCallum, H McCarrick, F McCarthy, M McCulloch, J McMahon, PD Meerburg, Y Mehta, J Melin, J Meyers, A Middleton, A Miller, M Mirmelstein, K Moodley, J Moore, M Morshed, T Morton, E Moser, T Mroczkowski, M Murata, M Münchmeyer, S Naess, H Nakata, T Namikawa, M Nashimoto, F Nati, P Natoli, M Negrello, SK Nerval, L Newburgh, DV Nguyen, A Nicola, MD Niemack, H Nishino, Y Nishinomiya, A Orlando, J Orlowski-Scherer, L Pagano, LA Page, S Pandey, A Papageorgiou, I Paraskevakos, B Partridge, R Patki, M Peel, KP Sarmiento, F Perrotta, P Phakathi, L Piccirillo, E Pierpaoli, T Pinsonneault-Marotte, G Pisano, D Poletti, R Puddu, G Puglisi, FJ Qu, MJ Randall, C Ranucci, C Raum, R Reeves, CL Reichardt, M Remazeilles, Y Rephaeli, D Riechers, J Robe, MF Robertson, N Robertson, K Rogers, F Rojas, A Romero, E Rosenberg, A Rotti, S Rowe, A Roy, S Sadeh, N Sailer, K Sakaguri, T Sakuma, Y Sakurai, M Salatino, GH Sanders, D Sasaki, MS Rao, TP Satterthwaite, L Saunders, L Scalcinati, E Schaan, B Schmitt, M Schmittfull, N Sehgal, J Seibert, Y Seino, U Seljak, S Shaikh, E Shaw, P Shellard, B Sherwin, M Shimon, JE Shroyer, C Sierra, J Sievers, C Sifón, P Sikhosana, M Silva-Feaver, SM Simon, A Sinclair, K Smith, W Sohn, X Song, RF Sonka, D Spergel, J Spisak, ST Staggs, G Stein, JR Stevens, R Stompor, E Storer, R Sudiwala, J Sugiyama, KM Surrao, S Sutariya, A Suzuki, J Suzuki, O Tajima, S Takakura, A Takeuchi, I Tansieri, AC Taylor, G Teply, T Terasaki, A Thomas, DB Thomas, R Thornton, H Trac, T Tsan, ETK Sang, C Tucker, J Ullom, L Vacher, L Vale, A van Engelen, J Van Lanen, J van Marrewijk, DD Van Winkle, C Vargas, EM Vavagiakis, I Veenendaal, C Vergès, M Vissers, M Viña, K Wagoner, S Walker, L Walters, Y Wang, B Westbrook, J Williams, P Williams, H Winch, EJ Wollack, K Wolz, J Wong, Z Xu, K Yamada, E Young, B Yu, C Yu, M Zannoni, K Zheng, N Zhu, A Zonca, I Zubeldia, TSO collaboration
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
Filtering in CMB data analysis with application to ACT DR4 and Planck observations
E Rosenberg, S Gratton, A Challinor
– Physical Review D
(2025)
112,
The Atacama Cosmology Telescope: High-redshift measurement of structure growth from the cross-correlation of Quaia quasars and CMB lensing from ACT DR6 and $\textit{Planck}$ PR4
CE Villagra, G Farren, G Fabbian, B Bolliet, I Abril-Cabezas, D Alonso, A Challinor, J Dunkley, J Kim, N MacCrann, F McCarthy, K Moodley, FJ Qu, B Sherwin, C Sifon, AV Engelen, EJ Wollack
(2025)
