Related papers: The Atacama Cosmology Telescope: DR6 Power Spectra…

Evidence for dark energy from the cosmic microwave background alone using the Atacama Cosmology Telescope lensing measurements

For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with $w=-1$ dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-02 Blake D. Sherwin , Joanna Dunkley , Sudeep Das , John W. Appel , J. Richard Bond , C. Sofia Carvalho , Mark J. Devlin , Rolando Dunner , Thomas Essinger-Hileman , Joseph W. Fowler , Amir Hajian , Mark Halpern , Matthew Hasselfield , Adam D. Hincks , Renee Hlozek , John P. Hughes , Kent D. Irwin , Jeff Klein , Arthur Kosowsky , Tobias A. Marriage , Danica Marsden , Kavilan Moodley , Felipe Menanteau , Michael D. Niemack , Michael R. Nolta , Lyman A. Page , Lucas Parker , Erik D. Reese , Benjamin L. Schmitt , Neelima Sehgal , Jon Sievers , David N. Spergel , Suzanne T. Staggs , Daniel S. Swetz , Eric R. Switzer , Robert Thornton , Katerina Visnjic , Ed Wollack

Multiprobe constraints on early and late time dark energy

We perform a multiprobe analysis combining cosmic microwave background (CMB) data from Planck and the Atacama Cosmology Telescope (ACT), ACT CMB lensing, and large-scale structure (LSS) measurements from the Dark Energy Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-08 Alexander Reeves , Simone Ferraro , Andrina Nicola , Alexandre Refregier

The Atacama Cosmology Telescope: Delensed Power Spectra and Parameters

We present LCDM cosmological parameter constraints obtained from delensed microwave background power spectra. Lensing maps from a subset of DR4 data from the Atacama Cosmology Telescope (ACT) are used to undo the lensing effect in ACT…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-18 Dongwon Han , Neelima Sehgal , Amanda MacInnis , Alexander van Engelen , Blake D. Sherwin , Mathew S. Madhavacheril , Simone Aiola , Nicholas Battaglia , James A. Beall , Daniel T. Becker , Erminia Calabrese , Steve K. Choi , Omar Darwish , Edward V. Denison , Mark J. Devlin , Jo Dunkley , Simone Ferraro , Anna E. Fox , Matthew Hasselfield , J. Colin Hill , Gene C. Hilton , Matt Hilton , Renée Hložek , Johannes Hubmayr , John P. Hughes , Arthur Kosowsky , Jeff Van Lanen , Thibaut Louis , Kavilan Moodley , Sigurd Naess , Toshiya Namikawa , Federico Nati , John P. Nibarger , Michael D. Niemack , Lyman A. Page , Bruce Partridge , Frank J. Qu , Alessandro Schillaci , David N. Spergel , Suzanne Staggs , Emilie Storer , Edward J. Wollack

The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters

We present the temperature and polarization angular power spectra measured by the Atacama Cosmology Telescope Polarimeter (ACTPol). We analyze night-time data collected during 2013-14 using two detector arrays at 149 GHz, from 548 deg$^2$…

Cosmology and Nongalactic Astrophysics · Physics 2017-06-28 Thibaut Louis , Emily Grace , Matthew Hasselfield , Marius Lungu , Loïc Maurin , Graeme E. Addison , Peter A. R. Ade , Simone Aiola , Rupert Allison , Mandana Amiri , Elio Angile , Nicholas Battaglia , James A. Beall , Francesco de Bernardis , J. Richard Bond , Joe Britton , Erminia Calabrese , Hsiao-mei Cho , Steve K. Choi , Kevin Coughlin , Devin Crichton , Kevin Crowley , Rahul Datta , Mark J. Devlin , Simon R. Dicker , Joanna Dunkley , Rolando Dünner , Simone Ferraro , Anna E. Fox , Patricio Gallardo , Megan Gralla , Mark Halpern , Shawn Henderson , J. Colin Hill , Gene C. Hilton , Matt Hilton , Adam D. Hincks , Renée Hlozek , S. P. Patty Ho , Zhiqi Huang , Johannes Hubmayr , Kevin M. Huffenberger , John P. Hughes , Leopoldo Infante , Kent Irwin , Simon Muya Kasanda , Jeff Klein , Brian Koopman , Arthur Kosowsky , Dale Li , Mathew Madhavacheril , Tobias A. Marriage , Jeff McMahon , Felipe Menanteau , Kavilan Moodley , Charles Munson , Sigurd Naess , Federico Nati , Laura Newburgh , John Nibarger , Michael D. Niemack , Michael R. Nolta , Carolina Nuñez , Lyman A. Page , Christine Pappas , Bruce Partridge , Felipe Rojas , Emmanuel Schaan , Benjamin L. Schmitt , Neelima Sehgal , Blake D. Sherwin , Jon Sievers , Sara Simon , David N. Spergel , Suzanne T. Staggs , Eric R. Switzer , Robert Thornton , Hy Trac , Jesse Treu , Carole Tucker , Alexander Van Engelen , Jonathan T. Ward , Edward J. Wollack

Planck 2015 constraints on the non-flat $\Lambda$CDM inflation model

We study Planck 2015 cosmic microwave background (CMB) anisotropy data using the energy density inhomogeneity power spectrum generated by quantum fluctuations during an early epoch of inflation in the non-flat $\Lambda$CDM model. Unlike…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-19 Junpei Ooba , Bharat Ratra , Naoshi Sugiyama

The Atacama Cosmology Telescope: Cosmological parameters from three seasons of data

We present constraints on cosmological and astrophysical parameters from high-resolution microwave background maps at 148 GHz and 218 GHz made by the Atacama Cosmology Telescope (ACT) in three seasons of observations from 2008 to 2010. A…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Jonathan L. Sievers , Renée A. Hlozek , Michael R. Nolta , Viviana Acquaviva , Graeme E. Addison , Peter A. R. Ade , Paula Aguirre , Mandana Amiri , John William Appel , L. Felipe Barrientos , Elia S. Battistelli , Nick Battaglia , J. Richard Bond , Ben Brown , Bryce Burger , Erminia Calabrese , Jay Chervenak , Devin Crichton , Sudeep Das , Mark J. Devlin , Simon R. Dicker , W. Bertrand Doriese , Joanna Dunkley , Rolando Dünner , Thomas Essinger-Hileman , David Faber , Ryan P. Fisher , Joseph W. Fowler , Patricio Gallardo , Michael S. Gordon , Megan B. Gralla , Amir Hajian , Mark Halpern , Matthew Hasselfield , Carlos Hernández-Monteagudo , J. Colin Hill , Gene C. Hilton , Matt Hilton , Adam D. Hincks , Dave Holtz , Kevin M. Huffenberger , David H. Hughes , John P. Hughes , Leopoldo Infante , Kent D. Irwin , David R. Jacobson , Brittany Johnstone , Jean Baptiste Juin , Madhuri Kaul , Jeff Klein , Arthur Kosowsky , Judy M Lau , Michele Limon , Yen-Ting Lin , Thibaut Louis , Robert H. Lupton , Tobias A. Marriage , Danica Marsden , Krista Martocci , Phil Mauskopf , Michael McLaren , Felipe Menanteau , Kavilan Moodley , Harvey Moseley , Calvin B Netterfield , Michael D. Niemack , Lyman A. Page , William A. Page , Lucas Parker , Bruce Partridge , Reed Plimpton , Hernan Quintana , Erik D. Reese , Beth Reid , Felipe Rojas , Neelima Sehgal , Blake D. Sherwin , Benjamin L. Schmitt , David N. Spergel , Suzanne T. Staggs , Omelan Stryzak , Daniel S. Swetz , Eric R. Switzer , Robert Thornton , Hy Trac , Carole Tucker , Masao Uehara , Katerina Visnjic , Ryan Warne , Grant Wilson , Ed Wollack , Yue Zhao , Caroline Zunckel

Quantifying the global "CMB tension" between the Atacama Cosmology Telescope and the Planck satellite in extended models of cosmology

We study the global agreement between the most recent observations of the Cosmic Microwave Background temperature and polarization anisotropies angular power spectra released by the Atacama Cosmology Telescope and the Planck satellite in…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-02 Eleonora Di Valentino , William Giarè , Alessandro Melchiorri , Joseph Silk

Health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments

We present an updated data-analysis comparison of the most recent observations of the Cosmic Microwave Background temperature anisotropies and polarization angular power spectra released by four different experiments: the Planck satellite…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-15 Eleonora Di Valentino , William Giarè , Alessandro Melchiorri , Joseph Silk

Tickling the CMB damping tail: scrutinizing the tension between the ACT and SPT experiments

The Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT) have recently provided new, very precise measurements of the cosmic microwave background (CMB) anisotropy damping tail. The values of the cosmological parameters…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-09 Eleonora Di Valentino , Silvia Galli , Massimiliano Lattanzi , Alessandro Melchiorri , Paolo Natoli , Luca Pagano , Najla Said

Cosmological data and indications for new physics

Data from the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT), combined with the nine-year data release from the WMAP satellite, provide very precise measurements of the cosmic microwave background (CMB) angular…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Micol Benetti , Martina Gerbino , William H. Kinney , Edward W. Kolb , Massimiliano Lattanzi , Alessandro Melchiorri , Luca Pagano , Antonio Riotto

Improved Measurement of the Angular Power Spectrum of Temperature Anisotropy in the CMB from Two New Analyses of BOOMERANG Observations

We report the most complete analysis to date of observations of the Cosmic Microwave Background (CMB) obtained during the 1998 flight of BOOMERANG. We use two quite different methods to determine the angular power spectrum of the CMB in 20…

Astrophysics · Physics 2009-11-07 J. E. Ruhl , P. A. R. Ade , J. J. Bock , J. R. Bond , J. Borrill , A. Boscaleri , C. R. Contaldi , B. P. Crill , P. de Bernardis , G. De Troia , K. Ganga , M. Giacometti , E. Hivon , V. V. Hristov , A. Iacoangeli , A. H. Jaffe , W. C. Jones , A. E. Lange , S. Masi , P. Mason , P. D. Mauskopf , A. Melchiorri , T. Montroy , C. B. Netterfield , E. Pascale , F. Piacentini , D. Pogosyan , G. Polenta , S. Prunet , G. Romeo

SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field

We present measurements of the temperature and E-mode polarization angular power spectra of the cosmic microwave background (CMB) from observations of 4% of the sky with SPT-3G, the current camera on the South Pole Telescope (SPT). The maps…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-02 E. Camphuis , W. Quan , L. Balkenhol , A. R. Khalife , F. Ge , F. Guidi , N. Huang , G. P. Lynch , Y. Omori , C. Trendafilova , A. J. Anderson , B. Ansarinejad , M. Archipley , P. S. Barry , K. Benabed , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , F. R. Bouchet , L. Bryant , M. G. Campitiello , J. E. Carlstrom , C. L. Chang , P. Chaubal , P. M. Chichura , A. Chokshi , T. -L. Chou , A. Coerver , T. M. Crawford , C. Daley , T. de Haan , K. R. Dibert , M. A. Dobbs , M. Doohan , A. Doussot , D. Dutcher , W. Everett , C. Feng , K. R. Ferguson , K. Fichman , A. Foster , S. Galli , A. E. Gambrel , R. W. Gardner , N. Goeckner-Wald , R. Gualtieri , S. Guns , N. W. Halverson , E. Hivon , G. P. Holder , W. L. Holzapfel , J. C. Hood , A. Hryciuk , F. Kéruzoré , L. Knox , M. Korman , K. Kornoelje , C. -L. Kuo , K. Levy , A. E. Lowitz , C. Lu , A. Maniyar , E. S. Martsen , F. Menanteau , M. Millea , J. Montgomery , Y. Nakato , T. Natoli , G. I. Noble , A. Ouellette , Z. Pan , P. Paschos , K. A. Phadke , A. W. Pollak , K. Prabhu , S. Raghunathan , M. Rahimi , A. Rahlin , C. L. Reichardt , M. Rouble , J. E. Ruhl , E. Schiappucci , A. Simpson , J. A. Sobrin , A. A. Stark , J. Stephen , C. Tandoi , B. Thorne , C. Umilta , J. D. Vieira , A. Vitrier , Y. Wan , N. Whitehorn , W. L. K. Wu , M. R. Young , J. A. Zebrowski

DASI First Results: A Measurement of the Cosmic Microwave Background Angular Power Spectrum

We present measurements of anisotropy in the Cosmic Microwave Background (CMB) from the first season of observations with the Degree Angular Scale Interferometer (DASI). The instrument was deployed at the South Pole in the austral summer…

Astrophysics · Physics 2009-11-06 N. W. Halverson , E. M. Leitch , C. Pryke , J. Kovac , J. E. Carlstrom , W. L. Holzapfel , M. Dragovan , J. K. Cartwright , B. S. Mason , S. Padin , T. J. Pearson , M. C. Shepherd , A. C. S. Readhead

Implications for cosmology from Ground-based Cosmic Microwave Background observations

Cosmic Microwave Background (CMB) anisotropy encodes a lot of information about our Universe. In this paper we take the ground-based CMB observations (GCMB), including the South Pole Telescope (SPT), SPTpol and the Atacama Cosmology…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-01 Ke Wang , Qing-Guo Huang

The Atacama Cosmology Telescope: High-resolution component-separated maps across one-third of the sky

Observations of the millimeter sky contain valuable information on a number of signals, including the blackbody cosmic microwave background (CMB), Galactic emissions, and the Compton-$y$ distortion due to the thermal Sunyaev-Zel'dovich…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-06 William R. Coulton , Mathew S. Madhavacheril , Adriaan J. Duivenvoorden , J. Colin Hill , 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 , Grace E. Chesmore , Hsiao-mei Cho , Steve K. Choi , Susan E. Clark , Rodrigo Córdova Rosado , Nicholas F. Cothard , Kevin Coughlin , Kevin T. Crowley , Mark J. Devlin , Simon Dicker , Peter Doze , Cody J. Duell , Shannon M. Duff , Jo Dunkley , Rolando Dünner , Valentina Fanfani , Max Fankhanel , Gerrit Farren , Simone Ferraro , Rodrigo Freundt , Brittany Fuzia , Patricio A. Gallardo , Xavier Garrido , Jahmour Givans , Vera Gluscevic , Joseph E. Golec , Yilun Guan , Mark Halpern , Dongwon Han , Matthew Hasselfield , Erin Healy , Shawn Henderson , Brandon Hensley , Carlos Hervías-Caimapo , 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 , 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 , Joshiwa van Marrewijk , Fiona McCarthy , 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 , Frank J. Qu , Federico Radiconi , Naomi Robertson , Felipe Rojas , Tai Sakuma , Maria Salatino , Emmanuel Schaan , Benjamin L. Schmitt , Neelima Sehgal , Shabbir Shaikh , Blake D. Sherwin , 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 Ullom , Leila R. Vale , Alexander Van Engelen , Jeff Van Lanen , Cristian Vargas , Eve M. Vavagiakis , Kasey Wagoner , Yuhan Wang , Lukas Wenzl , Edward J. Wollack , Zhilei Xu , Fernando Zago , Kaiwen Zheng

The Atacama Cosmology Telescope: Lensing of CMB Temperature and Polarization Derived from Cosmic Infrared Background Cross-Correlation

We present a measurement of the gravitational lensing of the Cosmic Microwave Background (CMB) temperature and polarization fields obtained by cross-correlating the reconstructed convergence signal from the first season of ACTPol data at…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-06 Alexander van Engelen , Blake D. Sherwin , Neelima Sehgal , Graeme E. Addison , Rupert Allison , Nick Battaglia , Francesco de Bernardis , Erminia Calabrese , Kevin Coughlin , Devin Crichton , J. Richard Bond , Rahul Datta , Rolando Dunner , Joanna Dunkley , Emily Grace , Megan Gralla , Amir Hajian , Matthew Hasselfield , Shawn Henderson , J. Colin Hill , Matt Hilton , Adam D. Hincks , Renée Hlozek , Kevin M. Huffenberger , John P. Hughes , Brian Koopman , Arthur Kosowsky , Thibaut Louis , Marius Lungu , Mathew Madhavacheril , Loic Maurin , Jeff McMahon , Kavilan Moodley , Charles Munson , Sigurd Naess , Federico Nati , Laura Newburgh , Michael D. Niemack , Mike Nolta , Lyman A. Page , Bruce Partridge , Christine Pappas , Benjamin L. Schmitt , Jonathan L. Sievers , Sara Simon , David N. Spergel , Suzanne T. Staggs , Eric R. Switzer , Jonathan T. Ward , Edward J. Wollack

A Measurement of the Cosmic Microwave Background Damping Tail from the 2500-square-degree SPT-SZ survey

We present a measurement of the cosmic microwave background (CMB) temperature power spectrum using data from the recently completed South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. This measurement is made from observations of 2540…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 K. T. Story , C. L. Reichardt , Z. Hou , R. Keisler , 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 , B. Follin , E. M. George , N. W. Halverson , G. P. Holder , W. L. Holzapfel , S. Hoover , J. D. Hrubes , M. Joy , L. Knox , A. T. Lee , E. M. Leitch , M. Lueker , D. Luong-Van , J. J. McMahon , J. Mehl , S. S. Meyer , M. Millea , J. J. Mohr , T. E. Montroy , S. Padin , T. Plagge , C. Pryke , J. E. Ruhl , J. T. Sayre , K. K. Schaffer , L. Shaw , E. Shirokoff , H. G. Spieler , Z. Staniszewski , A. A. Stark , A. van Engelen , K. Vanderlinde , J. D. Vieira , R. Williamson , O. Zahn

A measurement of secondary cosmic microwave background anisotropies with two years of South Pole Telescope observations

We present the first three-frequency South Pole Telescope (SPT) cosmic microwave background (CMB) power spectra. The band powers presented here cover angular scales 2000 < ell < 9400 in frequency bands centered at 95, 150, and 220 GHz. At…

Cosmology and Nongalactic Astrophysics · Physics 2012-07-30 C. L. Reichardt , L. Shaw , O. Zahn , 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 , E. M. George , N. W. Halverson , G. P. Holder , W. L. Holzapfel , S. Hoover , Z. Hou , J. D. Hrubes , M. Joy , 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 , J. J. Mohr , T. E. Montroy , T. Natoli , S. Padin , T. Plagge , C. Pryke , J. E. Ruhl , K. K. Schaffer , E. Shirokoff , H. G. Spieler , Z. Staniszewski , A. A. Stark , K. Story , A. van Engelen , K. Vanderlinde , J. D. Vieira , R. Williamson

The CMB temperature power spectrum from an improved analysis of the Archeops data

We present improved results on the measurement of the angular power spectrum of the Cosmic Microwave Background (CMB) temperature anisotropies using the data from the last Archeops flight. This refined analysis is obtained by using the 6…

Astrophysics · Physics 2009-11-10 M. Tristram , G. Patanchon , J. F. Macias-Perez , P. Ade , A. Amblard , R. Ansari , E. Aubourg , A. Benoit , J. -Ph. Bernard , A. Blanchard , J. J. Bock , F. R. Bouchet , A. Bourrachot , P. Camus , J. -F. Cardoso , F. Couchot , P. de Bernardis , J. Delabrouille , F. -X. Desert , M. Douspis , L. Dumoulin , Ph. Filliatre , P. Fosalba , M. Giard , Y. Giraud-Heraud , R. Gispert , L. Guglielmi , J. -Ch. Hamilton , S. Hanany , S. Henrot-Versille , J. Kaplan , G. Lagache , J. -M. Lamarre , A. E. Lange , K. Madet , B. Maffei , Ch. Magneville , S. Masi , F. Mayet , F. Nati , O. Perdereau , S. Plaszczynski , M. Piat , N. Ponthieu , S. Prunet , C. Renault , C. Rosset , D. Santos , D. Vibert , D. Yvon

Relieving tensions related to the lensing of CMB temperature power spectra

The angular power spectra of the cosmic microwave background (CMB) temperature anisotropies reconstructed from Planck data seem to present too much gravitational lensing distortion. This is quantified by the control parameter $A_L$ that…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-18 F. Couchot , S. Henrot-Versillé , O. Perdereau , S. Plaszczynski , B. Rouillé d'Orfeuil , M. Spinelli , M. Tristram