The Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and Its Implications for Structure Growth

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dc.contributor.authorQu, Frank
dc.contributor.authorSherwin, Blake D.
dc.contributor.authorMadhavacheril, Mathew S.
dc.contributor.authorHan, Dongwon
dc.contributor.authorCrowley, Kevin T.
dc.contributor.authorAbril-Cabezas, Irene
dc.contributor.authorAde, Peter A. R.
dc.contributor.authorAiola, Simone
dc.contributor.authorAlford, Tommy
dc.contributor.authorAmiri, Mandana
dc.contributor.authorAmodeo, Stefania
dc.contributor.authorAn, Rui
dc.contributor.authorAtkins, Zachary
dc.contributor.authorAustermann, Jason E.
dc.contributor.authorBattaglia, Nicholas
dc.contributor.authorBattistelli, Elia Stefano
dc.contributor.authorBeall, James A.
dc.contributor.authorBean, Rachel
dc.contributor.authorBeringue, Benjamin
dc.contributor.authorBhandarkar, Tanay
dc.contributor.authorBiermann, Emily
dc.contributor.authorBolliet, Boris
dc.contributor.authorBond, J. Richard
dc.contributor.authorCai, Hongbo
dc.contributor.authorCalabrese, Erminia
dc.contributor.authorCalafut, Victoria
dc.contributor.authorCapalbo, Valentina
dc.contributor.authorCarrero, Felipe
dc.contributor.authorCarron, Julien
dc.contributor.authorChallinor, Anthony
dc.contributor.authorChesmore, Grace E.
dc.contributor.authorCho, Hsiao-Mei
dc.contributor.authorChoi, Steve K.
dc.contributor.authorClark, Susan E.
dc.contributor.authorRosado, Rodrigo Cordova
dc.contributor.authorCothard, Nicholas F.
dc.contributor.authorCoughlin, Kevin
dc.contributor.authorCoulton, William
dc.contributor.authorDalal, Roohi
dc.contributor.authorDarwish, Omar
dc.contributor.authorDevlin, Mark J.
dc.contributor.authorDicker, Simon
dc.contributor.authorDoze, Peter
dc.contributor.authorDuell, Cody J.
dc.contributor.authorDuff, Shannon M.
dc.contributor.authorDuivenvoorden, Adriaan J.
dc.contributor.authorDunkley, Jo
dc.contributor.authorDunner, Rolando
dc.contributor.authorFanfani, Valentina
dc.contributor.authorFankhanel, Max
dc.contributor.authorFarren, Gerrit
dc.contributor.authorFerraro, Simone
dc.contributor.authorFreundt, Rodrigo
dc.contributor.authorFuzia, Brittany
dc.contributor.authorGallardo, Patricio A.
dc.contributor.authorGarrido, Xavier
dc.contributor.authorGluscevic, Vera
dc.contributor.authorGolec, Joseph E.
dc.contributor.authorGuan, Yilun
dc.contributor.authorHalpern, Mark
dc.contributor.authorHarrison, Ian
dc.contributor.authorHasselfield, Matthew
dc.contributor.authorHealy, Erin
dc.contributor.authorHenderson, Shawn
dc.contributor.authorHensley, Brandon
dc.contributor.authorHervias-Caimapo, Carlos
dc.contributor.authorHill, J. Colin
dc.contributor.authorHilton, Gene C.
dc.contributor.authorHilton, Matt
dc.contributor.authorHincks, Adam D.
dc.contributor.authorHlozek, Renee
dc.contributor.authorHo, Shuay-Pwu Patty
dc.contributor.authorHuber, Zachary B.
dc.contributor.authorHubmayr, Johannes
dc.contributor.authorHuffenberger, Kevin M.
dc.contributor.authorHughes, John P.
dc.contributor.authorIrwin, Kent
dc.contributor.authorIsopi, Giovanni
dc.contributor.authorJense, Hidde T.
dc.contributor.authorKeller, Ben
dc.contributor.authorKim, Joshua
dc.contributor.authorKnowles, Kenda
dc.contributor.authorKoopman, Brian J.
dc.contributor.authorKosowsky, Arthur
dc.contributor.authorKramer, Darby
dc.contributor.authorKusiak, Aleksandra
dc.contributor.authorLa Posta, Adrien
dc.contributor.authorLague, Alex
dc.contributor.authorLakey, Victoria
dc.contributor.authorLee, Eunseong
dc.contributor.authorLi, Zack
dc.contributor.authorLi, Yaqiong
dc.contributor.authorLimon, Michele
dc.contributor.authorLokken, Martine
dc.contributor.authorLouis, Thibaut
dc.contributor.authorLungu, Marius
dc.contributor.authorMacCrann, Niall
dc.contributor.authorMacInnis, Amanda
dc.contributor.authorMaldonado, Diego
dc.contributor.authorMaldonado, Felipe
dc.contributor.authorMallaby-Kay, Maya
dc.contributor.authorMarques, Gabriela A.
dc.contributor.authorMcMahon, Jeff
dc.contributor.authorMehta, Yogesh
dc.contributor.authorMenanteau, Felipe
dc.contributor.authorMoodley, Kavilan
dc.contributor.authorMorris, Thomas W.
dc.contributor.authorMroczkowski, Tony
dc.contributor.authorNaess, Sigurd
dc.contributor.authorNamikawa, Toshiya
dc.contributor.authorNati, Federico
dc.contributor.authorNewburgh, Laura
dc.contributor.authorNicola, Andrina
dc.contributor.authorNiemack, Michael D.
dc.contributor.authorNolta, Michael R.
dc.contributor.authorOrlowski-Scherer, John
dc.contributor.authorPage, Lyman A.
dc.contributor.authorPandey, Shivam
dc.contributor.authorPartridge, Bruce
dc.contributor.authorPrince, Heather
dc.contributor.authorPuddu, Roberto
dc.contributor.authorRadiconi, Federico
dc.contributor.authorRobertson, Naomi
dc.contributor.authorRojas, Felipe
dc.contributor.authorSakuma, Tai
dc.contributor.authorSalatino, Maria
dc.contributor.authorSchaan, Emmanuel
dc.contributor.authorSchmitt, Benjamin L.
dc.contributor.authorSehgal, Neelima
dc.contributor.authorShaikh, Shabbir
dc.contributor.authorSierra, Carlos
dc.contributor.authorSievers, Jon
dc.contributor.authorSifon, Cristobal
dc.contributor.authorSimon, Sara
dc.contributor.authorSonka, Rita
dc.contributor.authorSpergel, David N.
dc.contributor.authorStaggs, Suzanne T.
dc.contributor.authorStorer, Emilie
dc.contributor.authorSwitzer, Eric R.
dc.contributor.authorTampier, Niklas
dc.contributor.authorThornton, Robert
dc.contributor.authorTrac, Hy
dc.contributor.authorTreu, Jesse
dc.contributor.authorTucker, Carole
dc.contributor.authorUllom, Joel
dc.contributor.authorVale, Leila R.
dc.contributor.authorVan Engelen, Alexander
dc.contributor.authorVan Lanen, Jeff
dc.contributor.authorvan Marrewijk, Joshiwa
dc.contributor.authorVargas, Cristian
dc.contributor.authorVavagiakis, Eve M.
dc.contributor.authorWagoner, Kasey
dc.contributor.authorWang, Yuhan
dc.contributor.authorWenzl, Lukas
dc.contributor.authorWollack, Edward J.
dc.contributor.authorXu, Zhilei
dc.contributor.authorZago, Fernando
dc.contributor.authorZheng, Kaiwen
dc.date.accessioned2025-01-20T17:07:34Z
dc.date.available2025-01-20T17:07:34Z
dc.date.issued2024
dc.description.abstractWe present new measurements of cosmic microwave background (CMB) lensing over 9400 deg2 of the sky. These lensing measurements are derived from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) CMB data set, which consists of five seasons of ACT CMB temperature and polarization observations. We determine the amplitude of the CMB lensing power spectrum at 2.3% precision (43 sigma significance) using a novel pipeline that minimizes sensitivity to foregrounds and to noise properties. To ensure that our results are robust, we analyze an extensive set of null tests, consistency tests, and systematic error estimates and employ a blinded analysis framework. Our CMB lensing power spectrum measurement provides constraints on the amplitude of cosmic structure that do not depend on Planck or galaxy survey data, thus giving independent information about large-scale structure growth and potential tensions in structure measurements. The baseline spectrum is well fit by a lensing amplitude of A lens = 1.013 +/- 0.023 relative to the Planck 2018 CMB power spectra best-fit Lambda CDM model and A lens = 1.005 +/- 0.023 relative to the ACT DR4 + WMAP best-fit model. From our lensing power spectrum measurement, we derive constraints on the parameter combination S8CMBL equivalent to sigma 8 omega m/0.30.25 of S8CMBL=0.818 +/- 0.022 from ACT DR6 CMB lensing alone and S8CMBL=0.813 +/- 0.018 when combining ACT DR6 and Planck NPIPE CMB lensing power spectra. These results are in excellent agreement with Lambda CDM model constraints from Planck or ACT DR4 + WMAP CMB power spectrum measurements. Our lensing measurements from redshifts z similar to 0.5-5 are thus fully consistent with Lambda CDM structure growth predictions based on CMB anisotropies probing primarily z similar to 1100. We find no evidence for a suppression of the amplitude of cosmic structure at low redshifts.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/acfe06
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/acfe06
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90871
dc.identifier.wosidWOS:001184986700001
dc.issue.numero2
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.titleThe Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and Its Implications for Structure Growth
dc.typeartículo
dc.volumen962
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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