Related papers: Cosmological data and indications for new physics

Cosmological Constraints from the Cosmic Microwave Background

Using an approximate likelihood method adapted to band--power estimates, we analyze the ensemble of first generation cosmic microwave background anisotropy experiments to deduce constraints over a six--dimensional parameter space describing…

Astrophysics · Physics 2011-05-23 M. Le Dour , M. Douspis , J. G. Bartlett , A. Blanchard

Has ACT measured radiative corrections to the tree-level Higgs-like inflation?

Starobinsky inflation and nonminimally coupled (NMC) Higgs inflation have been among the most favored models of the early Universe, as their predictions for the scalar spectral index $n_s$ and tensor-to-scalar ratio $r$ fall comfortably…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-26 Ioannis D. Gialamas , Alexandros Karam , Antonio Racioppi , Martti Raidal

Exploring the discrepancy between Planck PR3 and ACT DR4

We explore the scales and the extent of disagreement between $Planck$ PR3 and Atacama Cosmology Telescope (ACT) DR4 data. $Planck$ and ACT data have substantial overlap in the temperature anisotropy data between scales corresponding to…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-11 Dhiraj Kumar Hazra , Benjamin Beringue , Josquin Errard , Arman Shafieloo , George F. Smoot

The Atacama Cosmology Telescope (ACT): Beam Profiles and First SZ Cluster Maps

The Atacama Cosmology Telescope (ACT) is currently observing the cosmic microwave background with arcminute resolution at 148 GHz, 218 GHz, and 277 GHz. In this paper, we present ACT's first results. Data have been analyzed using a…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-23 A. D. Hincks , V. Acquaviva , P. Ade , P. Aguirre , M. Amiri , J. W. Appel , L. F. Barrientos , E. S. Battistelli , J. R. Bond , B. Brown , B. Burger , J. Chervenak , S. Das , M. J. Devlin , S. Dicker , W. B. Doriese , J. Dunkley , R. Dünner , T. Essinger-Hileman , R. P. Fisher , J. W. Fowler , A. Hajian , M. Halpern , M. Hasselfield , C. Hernández-Monteagudo , G. C. Hilton , M. Hilton , R. Hlozek , K. Huffenberger , D. Hughes , J. P. Hughes , L. Infante , K. D. Irwin , R. Jimenez , J. B. Juin , M. Kaul , J. Klein , A. Kosowsky , J. M. Lau , M. Limon , Y. -T. Lin , R. H. Lupton , T. Marriage , D. Marsden , K. Martocci , P. Mauskopf , F. Menanteau , K. Moodley , H. Moseley , C. B. Netterfield , M. D. Niemack , M. R. Nolta , L. A. Page , L. Parker , B. Partridge , H. Quintana , B. Reid , N. Sehgal , J. Sievers , D. N. Spergel , S. T. Staggs , O. Stryzak , D. Swetz , E. Switzer , R. Thornton , H. Trac , C. Tucker , L. Verde , R. Warne , G. Wilson , E. Wollack , Y. Zhao

The Atacama Cosmology Telescope: Cosmology from cross-correlations of unWISE galaxies and ACT DR6 CMB lensing

We present tomographic measurements of structure growth using cross-correlations of Atacama Cosmology Telescope (ACT) DR6 and Planck CMB lensing maps with the unWISE Blue and Green galaxy samples, which span the redshift ranges $0.2…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-13 Gerrit S. Farren , Alex Krolewski , Niall MacCrann , Simone Ferraro , Irene Abril-Cabezas , Rui An , Zachary Atkins , Nicholas Battaglia , J. Richard Bond , Erminia Calabrese , Steve K. Choi , Omar Darwish , Mark J. Devlin , Adriaan J. Duivenvoorden , Jo Dunkley , J. Colin Hill , Matt Hilton , Kevin M. Huffenberger , Joshua Kim , Thibaut Louis , Mathew S. Madhavacheril , Gabriela A. Marques , Kavilan Moodley , Lyman A. Page , Bruce Partridge , Frank J. Qu , Emmanuel Schaan , Neelima Sehgal , Blake D. Sherwin , Cristóbal Sifón , Suzanne T. Staggs , Alexander Van Engelen , Cristian Vargas , Lukas Wenzl , Martin White , Edward J. Wollack

The Atacama Cosmology Telescope: DR6 Power Spectrum Foreground Model and Validation

We discuss the model of astrophysical emission at millimeter wavelengths used to characterize foregrounds in the multi-frequency power spectra of the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6), expanding on Louis et al. (2025).…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-13 Benjamin Beringue , Kristen M. Surrao , J. Colin Hill , Zachary Atkins , Nicholas Battaglia , Boris Bolliet , Erminia Calabrese , Steve K. Choi , Susan E. Clark , Adriaan J. Duivenvoorden , Jo Dunkley , Serena Giardiello , Samuel Goldstein , Brandon S. Hensley , Renée Hložek , Hidde T. Jense , Darby Kramer , Adrien La Posta , Thibaut Louis , Yogesh Mehta , Kavilan Moodley , Sigurd Naess , Bruce Partridge , Frank J. Qu , Bernardita Ried Guachalla , Neelima Sehgal , Cristóbal Sifón , Suzanne T. Staggs , Hy Trac , Alexander Van Engelen , Edward J. Wollack

The Atacama Cosmology Telescope: A demonstration of CMB lensing measurement from daytime data

We present a cosmic microwave background (CMB) lensing power spectrum analysis using daytime data (11am-11pm UTC) gathered by the Atacama Cosmology Telescope (ACT) over the period 2017-2022 (ACT Data Release 6). This dataset is challenging…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-21 Irene Abril-Cabezas , Frank J. Qu , Joshua Kim , Mathew S. Madhavacheril , Karen Perez-Sarmiento , Zachary Atkins , Erminia Calabrese , Anthony Challinor , Mark J. Devlin , Adriaan J. Duivenvoorden , Jo Dunkley , Alexander van Engelen , Simone Ferraro , Emily Finson , Carlos Hervías-Caimapo , Matt Hilton , Arthur Kosowsky , Aleksandra Kusiak , Thibaut Louis , Niall MacCrann , Kavilan Moodley , Toshiya Namikawa , Sigurd Naess , Lyman A. Page , Adrien La Posta , Emmanuel Schaan , Neelima Sehgal , Blake D. Sherwin , Carlos E. Sierra , Cristóbal Sifón , Suzanne T. Staggs , Emilie Storer , Edward J. Wollack

Tightening constraints on primordial oscillations with latest ACT and SPT data

The oscillation feature in primordial power spectrum (PPS), a fingerprint of not only a wide class of models of inflation but new physics, is of significant theoretical interest, and can be imprinted on the cosmic microwave background…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-19 Ze-Yu Peng , Yun-Song Piao

A measurement of secondary cosmic microwave background anisotropies from the 2500-square-degree SPT-SZ survey

We present measurements of secondary cosmic microwave background (CMB) anisotropies and cosmic infrared background (CIB) fluctuations using data from the South Pole Telescope (SPT) covering the complete 2540 sq.deg. SPT-SZ survey area. Data…

Cosmology and Nongalactic Astrophysics · Physics 2015-02-06 E. M. George , C. L. Reichardt , K. A. Aird , B. A. Benson , L. E. Bleem , J. E. Carlstrom , C. L. Chang , H-M. Cho , T. M. Crawford , A. T. Crites , T. de Haan , M. A. Dobbs , J. Dudley , N. W. Halverson , N. L. Harrington , G. P. Holder , W. L. Holzapfel , Z. Hou , J. D. Hrubes , R. Keisler , L. Knox , A. T. Lee , E. M. Leitch , M. Lueker , D. Luong-Van , J. J. McMahon , J. Mehl , S. S. Meyer , M. Millea , L. M. Mocanu , J. J. Mohr , T. E. Montroy , S. Padin , T. Plagge , C. Pryke , J. E. Ruhl , K. K. Schaffer , L. Shaw , E. Shirokoff , H. G. Spieler , Z. Staniszewski , A. A. Stark , K. T. Story , A. van Engelen , K. Vanderlinde , J. D. Vieira , R. Williamson , O. Zahn

Constraint on inflation model from BICEP2 and WMAP 9-year data

Even though Planck data released in 2013 (P13) is not compatible with Background Imaging of Cosmic Extragalactic Polarization (B2) and some local cosmological observations, including Supernova Legacy Survey (SNLS) samples and $H_0$ prior…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-03 Cheng Cheng , Qing-Guo Huang

ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope

The six-meter Atacama Cosmology Telescope (ACT) in Chile was built to measure the cosmic microwave background (CMB) at arcminute angular scales. We are building a new polarization sensitive receiver for ACT (ACTPol). ACTPol will…

Instrumentation and Methods for Astrophysics · Physics 2010-11-11 M. D. Niemack , P. A. R. Ade , J. Aguirre , F. Barrientos , J. A. Beall , J. R. Bond , J. Britton , H. M. Cho , S. Das , M. J. Devlin , S. Dicker , J. Dunkley , R. Dunner , J. W. Fowler , A. Hajian , M. Halpern , M. Hasselfield , G. C. Hilton , M. Hilton , J. Hubmayr , J. P. Hughes , L. Infante , K. D. Irwin , N. Jarosik , J. Klein , A. Kosowsky , T. A. Marriage , J. McMahon , F. Menanteau , K. Moodley , J. P. Nibarger , M. R. Nolta , L. A. Page , B. Partridge , E. D. Reese , J. Sievers , D. N. Spergel , S. T. Staggs , R. Thornton , C. Tucker , E. Wollack , K. W. Yoon

Do JWST reionization (optical depth) puzzle, cosmological tensions, and CMB anomalies imply Harrison-Zel'dovich spectrum?

The James Webb Space Telescope (JWST) has observed massive galaxies at high redshifts, which implies an earlier epoch of reionization (EoR) compared with the cosmic microwave background (CMB) results. In this paper, based on \texttt{Planck…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-22 Hao-Hao Li , Xin-zhe Zhang , Taotao Qiu , Jun-Qing Xia

Cosmological Constraints from Sunyaev-Zel'dovich-Selected Clusters with X-ray Observations in the First 178 Square Degrees of the South Pole Telescope Survey

We use measurements from the South Pole Telescope (SPT) Sunyaev Zel'dovich (SZ) cluster survey in combination with X-ray measurements to constrain cosmological parameters. We present a statistical method that fits for the scaling relations…

Cosmology and Nongalactic Astrophysics · Physics 2013-02-06 B. A. Benson , T. de Haan , J. P. Dudley , C. L. Reichardt , K. A. Aird , K. Andersson , R. Armstrong , M. Bautz , M. Bayliss , G. Bazin , L. E. Bleem , M. Brodwin , J. E. Carlstrom , C. L. Chang , H. M. Cho , A. Clocchiatti , T. M. Crawford , A. T. Crites , S. Desai , M. A. Dobbs , R. J. Foley , W. R. Forman , E. M. George , M. D. Gladders , N. W. Halverson , F. W. High , G. P. Holder , W. L. Holzapfel , S. Hoover , J. D. Hrubes , C. Jones , M. Joy , R. Keisler , L. Knox , A. T. Lee , E. M. Leitch , J. Liu , M. Lueker , D. Luong-Van , A. Mantz , D. P. Marrone , M. McDonald , J. J. McMahon , J. Mehl , S. S. Meyer , L. Mocanu , J. J. Mohr , T. E. Montroy , S. S. Murray , T. Natoli , S. Padin , T. Plagge , C. Pryke , A. Rest , J. Ruel , J. E. Ruhl , B. R. Saliwanchik , A. Saro , K. K. Schaffer , L. Shaw , E. Shirokoff , J. Song , H. G. Spieler , B. Stalder , Z. Staniszewski , A. A. Stark , K. Story , C. W. Stubbs , R. Suhada , A. van Engelen , K. Vanderlinde , J. D. Vieira , A. Vikhlinin , R. Williamson , O. Zahn , A. Zenteno

Quasi-matter Bounce Cosmology in Light of Planck

We study quasi-matter bounce cosmology in light of Planck cosmic microwave background (CMB) angular anisotropy measurements along with the BICEP2/Keck Array data. We propose a new primordial scalar power spectrum by considering a linear…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-08 Mohammad Arab , Mohsen Khorasani

Interferometric Observations of the Cosmic Microwave Background Radiation

Radio interferometers are well suited to studies of both total intensity and polarized intensity fluctuations of the cosmic microwave background radiation, and they have been used successfully in measurements of both the primary and…

Astrophysics · Physics 2007-05-23 A. C. S. Readhead , T. J. Pearson

Particle Physics with the Cosmic Microwave Background with SPT-3G

The cosmic microwave background (CMB) encodes information about the content and evolution of the universe. The presence of light, weakly interacting particles impacts the expansion history of the early universe, which alters the temperature…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-20 J. S. Avva , P. A. R. Ade , Z. Ahmed , A. J. Anderson , K. Aylor , R. Basu Thakur , A. N. Bender , B. A. Benson , L. E. Bleem , S. Bocquet , L. Bryant , J. E. Carlstrom , F. W. Carter , T. W. Cecil , C. L. Chang , T. M. Crawford , A. Cukierman , T. de Haan , J. Ding , M. A. Dobbs , S. Dodelson , D. Dutcher , W. Everett , K. R. Ferguson , A. Foster , J. Gallicchio , A. E. Gambrel , R. W. Gardner , J. C. Groh , S. Guns , N. W. Halverson , A. H. Harke-Hosemann , N. L. Harrington , J. W. Henning , G. P. Holder , W. L. Holzapfel , D. Howe , N. Huang , K. D. Irwin , O. B. Jeong , M. Jonas , A. Jones , T. S. Khaire , L. Knox , A. M. Kofman , M. Korman , D. L. Kubik , S. Kuhlmann , C. -L. Kuo , A. T. Lee , A. E. Lowitz , S. S. Meyer , D. Michalik , J. Montgomery , A. Nadolski , T. Natoli , H. Nguyen , G. I. Noble , V. Novosad , S. Padin , Z. Pan , P. Paschos , J. Pearson , C. M. Posada , W. Quan , S. Raghunathan , A. Rahlin , C. L. Reichardt , D. Riebel , J. E. Ruhl , J. T. Sayre , E. Shirokoff , G. Smecher , J. A. Sobrin , A. A. Stark , J. Stephen , K. T. Story , A. Suzuki , K. L. Thompson , C. Tucker , K. Vanderlinde , J. D. Vieira , G. Wang , N. Whitehorn , W. L. K. Wu , V. Yefremenko , K. W. Yoon , M. R. Young

Cosmological implications of the MAXIMA-I high resolution Cosmic Microwave Background anisotropy measurement

We discuss the cosmological implications of the new constraints on the power spectrum of the Cosmic Microwave Background Anisotropy derived from a new high resolution analysis of the MAXIMA-1 measurement (Lee et al. 2001). The power…

Astrophysics · Physics 2009-11-06 R. Stompor , M. Abroe , P. Ade , A. Balbi , D. Barbosa , J. Bock , J. Borrill , A. Boscaleri , P. De Bernardis , P. G. Ferreira , S. Hanany , V. Hristov , A. H. Jaffe , A. T. Lee , E. Pascale , B. Rabii , P. L. Richards , G. F. Smoot , C. D. Winant , J. H. P. Wu

Planck 2018 results. VI. Cosmological parameters

We present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies. We find good consistency with the standard spatially-flat 6-parameter $\Lambda$CDM cosmology having a power-law spectrum of…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-10 Planck Collaboration , N. Aghanim , Y. Akrami , M. Ashdown , J. Aumont , C. Baccigalupi , M. Ballardini , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , R. Battye , K. Benabed , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , J. Carron , A. Challinor , H. C. Chiang , J. Chluba , L. P. L. Colombo , C. Combet , D. Contreras , B. P. Crill , F. Cuttaia , P. de Bernardis , G. de Zotti , J. Delabrouille , J. -M. Delouis , E. Di Valentino , J. M. Diego , O. Doré , M. Douspis , A. Ducout , X. Dupac , S. Dusini , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , Y. Fantaye , M. Farhang , J. Fergusson , R. Fernandez-Cobos , F. Finelli , F. Forastieri , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frolov , S. Galeotta , S. Galli , K. Ganga , R. T. Génova-Santos , M. Gerbino , T. Ghosh , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gruppuso , J. E. Gudmundsson , J. Hamann , W. Handley , F. K. Hansen , D. Herranz , S. R. Hildebrandt , E. Hivon , Z. Huang , A. H. Jaffe , W. C. Jones , A. Karakci , E. Keihänen , R. Keskitalo , K. Kiiveri , J. Kim , T. S. Kisner , L. Knox , N. Krachmalnicoff , M. Kunz , H. Kurki-Suonio , G. Lagache , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , M. Le Jeune , P. Lemos , J. Lesgourgues , F. Levrier , A. Lewis , M. Liguori , P. B. Lilje , M. Lilley , V. Lindholm , M. López-Caniego , P. M. Lubin , Y. -Z. Ma , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , A. Marcos-Caballero , M. Maris , P. G. Martin , M. Martinelli , E. Martínez-González , S. Matarrese , N. Mauri , J. D. McEwen , P. R. Meinhold , A. Melchiorri , A. Mennella , M. Migliaccio , M. Millea , S. Mitra , M. -A. Miville-Deschênes , D. Molinari , L. Montier , G. Morgante , A. Moss , P. Natoli , H. U. Nørgaard-Nielsen , L. Pagano , D. Paoletti , B. Partridge , G. Patanchon , H. V. Peiris , F. Perrotta , V. Pettorino , F. Piacentini , L. Polastri , G. Polenta , J. -L. Puget , J. P. Rachen , M. Reinecke , M. Remazeilles , A. Renzi , G. Rocha , C. Rosset , G. Roudier , J. A. Rubiño-Martín , B. Ruiz-Granados , L. Salvati , M. Sandri , M. Savelainen , D. Scott , E. P. S. Shellard , C. Sirignano , G. Sirri , L. D. Spencer , R. Sunyaev , A. -S. Suur-Uski , J. A. Tauber , D. Tavagnacco , M. Tenti , L. Toffolatti , M. Tomasi , T. Trombetti , L. Valenziano , J. Valiviita , B. Van Tent , L. Vibert , P. Vielva , F. Villa , N. Vittorio , B. D. Wandelt , I. K. Wehus , M. White , S. D. M. White , A. Zacchei , A. Zonca

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

We present new measurements of cosmic microwave background (CMB) lensing over $9400$ sq. deg. of the sky. These lensing measurements are derived from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) CMB dataset, which consists of…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-23 Frank J. Qu , Blake D. Sherwin , Mathew S. Madhavacheril , Dongwon Han , Kevin T. Crowley , Irene Abril-Cabezas , Peter A. R. Ade , Simone Aiola , Tommy Alford , Mandana Amiri , Stefania Amodeo , Rui An , Zachary Atkins , Jason E. Austermann , Nicholas Battaglia , Elia Stefano Battistelli , James A. Beall , Rachel Bean , Benjamin Beringue , Tanay Bhandarkar , Emily Biermann , Boris Bolliet , J Richard Bond , Hongbo Cai , Erminia Calabrese , Victoria Calafut , Valentina Capalbo , Felipe Carrero , Julien Carron , Anthony Challinor , Grace E. Chesmore , Hsiao-mei Cho , Steve K. Choi , Susan E. Clark , Rodrigo Córdova Rosado , Nicholas F. Cothard , Kevin Coughlin , William Coulton , Roohi Dalal , Omar Darwish , Mark J. Devlin , Simon Dicker , Peter Doze , Cody J. Duell , Shannon M. Duff , Adriaan J. Duivenvoorden , Jo Dunkley , Rolando Dünner , Valentina Fanfani , Max Fankhanel , Gerrit Farren , Simone Ferraro , Rodrigo Freundt , Brittany Fuzia , Patricio A. Gallardo , Xavier Garrido , Vera Gluscevic , Joseph E. Golec , Yilun Guan , Mark Halpern , Ian Harrison , Matthew Hasselfield , Erin Healy , Shawn Henderson , Brandon Hensley , Carlos Hervías-Caimapo , J. Colin Hill , Gene C. Hilton , Matt Hilton , Adam D. Hincks , Renée Hložek , Shuay-Pwu Patty Ho , Zachary B. Huber , Johannes Hubmayr , Kevin M. Huffenberger , John P. Hughes , Kent Irwin , Giovanni Isopi , Hidde T. Jense , Ben Keller , Joshua Kim , Kenda Knowles , Brian J. Koopman , Arthur Kosowsky , Darby Kramer , Aleksandra Kusiak , Adrien La Posta , Alex Lague , Victoria Lakey , Eunseong Lee , Zack Li , Yaqiong Li , Michele Limon , Martine Lokken , Thibaut Louis , Marius Lungu , Niall MacCrann , Amanda MacInnis , Diego Maldonado , Felipe Maldonado , Maya Mallaby-Kay , Gabriela A. Marques , Jeff McMahon , Yogesh Mehta , Felipe Menanteau , Kavilan Moodley , Thomas W. Morris , Tony Mroczkowski , Sigurd Naess , Toshiya Namikawa , Federico Nati , Laura Newburgh , Andrina Nicola , Michael D. Niemack , Michael R. Nolta , John Orlowski-Scherer , Lyman A. Page , Shivam Pandey , Bruce Partridge , Heather Prince , Roberto Puddu , Federico Radiconi , Naomi Robertson , Felipe Rojas , Tai Sakuma , Maria Salatino , Emmanuel Schaan , Benjamin L. Schmitt , Neelima Sehgal , Shabbir Shaikh , Carlos Sierra , Jon Sievers , Cristóbal Sifón , Sara Simon , Rita Sonka , David N. Spergel , Suzanne T. Staggs , Emilie Storer , Eric R. Switzer , Niklas Tampier , Robert Thornton , Hy Trac , Jesse Treu , Carole Tucker , Joel Ulluom , Leila R. Vale , Alexander Van Engelen , Jeff Van Lanen , Joshiwa van Marrewijk , Cristian Vargas , Eve M. Vavagiakis , Kasey Wagoner , Yuhan Wang , Lukas Wenzl , Edward J. Wollack , Zhilei Xu , Fernando Zago , Kaiwen Zhang

Current small-scale CMB constraints to axion-like early dark energy

The SPT-3G 2018 TT/TE/EE cosmic microwave background (CMB) data set (temperature and polarization) is used to place constraints on an axion-like model of early dark energy (EDE). These data do not favor axion-like EDE and place an upper…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-08 Tristan L. Smith , Vivian Poulin