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The Cosmology Large Angular Scale Surveyor consists of four instruments performing a CMB polarization survey. Currently, the 40 GHz and first 90 GHz instruments are deployed and observing, with the second 90 GHz and a multichroic 150/220…
Instrumentation and Methods for Astrophysics · Physics
2018-07-25
Jeffrey Iuliano , Joseph Eimer , Lucas Parker , Gary Rhoades , Aamir Ali , John W. Appel , Charles Bennett , Michael Brewer , Ricardo Bustos , David Chuss , Joseph Cleary , Jullianna Couto , Sumit Dahal , Kevin Denis , Rolando Dünner , Thomas Essinger-Hileman , Pedro Fluxa , Mark Halpern , Kathleen Harrington , Kyle Helson , Gene Hilton , Gary Hinshaw , Johannes Hubmayr , John Karakla , Tobias Marriage , Nathan Miller , Jeffrey John McMahon , Carolina Nuñez , Ivan Padilla , Gonzalo Palma , Matthew Petroff , Bastian Pradenas Márquez , Rodrigo Reeves , Carl Reintsema , Karwan Rostem , Deniz Augusto Nunes Valle , Trevor Van Engelhoven , Bingjie Wang , Qinan Wang , Duncan Watts , Jenet Weiland , Edward J. Wollack , Zhilei Xu , Ziang Yan , Lingzhen Zeng
We present measurements of large-scale cosmic microwave background (CMB) E-mode polarization from the Cosmology Large Angular Scale Surveyor (CLASS) 90 GHz data. Using 115 det-yr of observations collected through 2024 with a variable-delay…
Cosmology and Nongalactic Astrophysics · Physics
2025-06-09
Yunyang Li , Joseph Eimer , John Appel , Charles Bennett , Michael Brewer , Sarah Marie Bruno , Ricardo Bustos , Carol Chan , David Chuss , Joseph Cleary , Sumit Dahal , Rahul Datta , Jullianna Denes Couto , Kevin Denis , Rolando Dunner , Thomas Essinger-Hileman , Kathleen Harrington , Kyle Helson , Johannes Hubmayr , Jeffrey Iuliano , John Karakla , Tobias Marriage , Nathan Miller , Carolina Morales Perez , Lucas Parker , Matthew Petroff , Rodrigo Reeves , Karwan Rostem , Caleigh Ryan , Rui Shi , Koji Shukawa , Deniz Valle , Duncan Watts , J. Weiland , Edward Wollack , Zhilei Xu , Lingzhen Zeng
The dynamic atmosphere imposes challenges to ground-based cosmic microwave background observation, especially for measurements on large angular scales. The hydrometeors in the atmosphere, mostly in the form of clouds, scatter the ambient…
Instrumentation and Methods for Astrophysics · Physics
2023-09-15
Yunyang Li , John W. Appel , Charles L. Bennett , Ricardo Bustos , David T. Chuss , Joseph Cleary , Jullianna Denes Couto , Sumit Dahal , Rahul Datta , Rolando Dünner , Joseph R. Eimer , Thomas Essinger-Hileman , Kathleen Harrington , Jeffrey Iuliano , Tobias A. Marriage , Matthew A. Petroff , Rodrigo A. Reeves , Karwan Rostem , Rui Shi , Deniz A. N. Valle , Duncan J. Watts , Oliver F. Wolff , Edward J. Wollack , Zhilei Xu
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
We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg$^2$ of the 2013-2016 survey, which covers $>$15000 deg$^2$ at 98 and 150 GHz. For this analysis we…
Cosmology and Nongalactic Astrophysics · Physics
2021-11-18
Steve K. Choi , Matthew Hasselfield , Shuay-Pwu Patty Ho , Brian Koopman , Marius Lungu , Maximilian H. Abitbol , Graeme E. Addison , Peter A. R. Ade , Simone Aiola , David Alonso , Mandana Amiri , Stefania Amodeo , Elio Angile , Jason E. Austermann , Taylor Baildon , Nick Battaglia , James A. Beall , Rachel Bean , Daniel T. Becker , J Richard Bond , Sarah Marie Bruno , Erminia Calabrese , Victoria Calafut , Luis E. Campusano , Felipe Carrero , Grace E. Chesmore , Hsiao-mei Cho , Susan E. Clark , Nicholas F. Cothard , Devin Crichton , Kevin T. Crowley , Omar Darwish , Rahul Datta , Edward V. Denison , Mark J. Devlin , Cody J. Duell , Shannon M. Duff , Adriaan J. Duivenvoorden , Jo Dunkley , Rolando Dünner , Thomas Essinger-Hileman , Max Fankhanel , Simone Ferraro , Anna E. Fox , Brittany Fuzia , Patricio A. Gallardo , Vera Gluscevic , Joseph E. Golec , Emily Grace , Megan Gralla , Yilun Guan , Kirsten Hall , Mark Halpern , Dongwon Han , Peter Hargrave , Shawn Henderson , Brandon Hensley , J. Colin Hill , Gene C. Hilton , Matt Hilton , Adam D. Hincks , Renée Hložek , Johannes Hubmayr , Kevin M. Huffenberger , John P. Hughes , Leopoldo Infante , Kent Irwin , Rebecca Jackson , Jeff Klein , Kenda Knowles , Arthur Kosowsky , Victoria Lakey , Dale Li , Yaqiong Li , Zack Li , Martine Lokken , Thibaut Louis , Amanda MacInnis , Mathew Madhavacheril , Felipe Maldonado , Maya Mallaby-Kay , Danica Marsden , Loïc Maurin , Jeff McMahon , Felipe Menanteau , Kavilan Moodley , Tim Morton , Sigurd Naess , Toshiya Namikawa , Federico Nati , Laura Newburgh , John P. Nibarger , Andrina Nicola , Michael D. Niemack , Michael R. Nolta , John Orlowski-Sherer , Lyman A. Page , Christine G. Pappas , Bruce Partridge , Phumlani Phakathi , Heather Prince , Roberto Puddu , Frank J. Qu , Jesus Rivera , Naomi Robertson , Felipe Rojas , Maria Salatino , Emmanuel Schaan , Alessandro Schillaci , Benjamin L. Schmitt , Neelima Sehgal , Blake D. Sherwin , Carlos Sierra , Jon Sievers , Cristobal Sifon , Precious Sikhosana , Sara Simon , David N. Spergel , Suzanne T. Staggs , Jason Stevens , Emilie Storer , Dhaneshwar D. Sunder , Eric R. Switzer , Ben Thorne , Robert Thornton , Hy Trac , Jesse Treu , Carole Tucker , Leila R. Vale , Alexander Van Engelen , Jeff Van Lanen , Eve M. Vavagiakis , Kasey Wagoner , Yuhan Wang , Jonathan T. Ward , Edward J. Wollack , Zhilei Xu , Fernando Zago , Ningfeng Zhu
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
The Atacama B-mode Search (ABS) is an experiment designed to measure cosmic microwave background (CMB) polarization at large angular scales ($\ell>40$). It operated from the ACT site at 5190~m elevation in northern Chile at 145 GHz with a…
Cosmology and Nongalactic Astrophysics · Physics
2018-09-19
Akito Kusaka , John Appel , Thomas Essinger-Hileman , James A. Beall , Luis E. Campusano , Hsiao-Mei Cho , Steve K. Choi , Kevin Crowley , Joseph W. Fowler , Patricio Gallardo , Matthew Hasselfield , Gene Hilton , Shuay-Pwu P. Ho , Kent Irwin , Norman Jarosik , Michael D. Niemack , Glen W. Nixon , Michael Nolta , Lyman A. Page , Gonzalo A. Palma , Lucas Parker , Srinivasan Raghunathan , Carl D. Reintsema , Jonathan Sievers , Sara M. Simon , Suzanne T. Staggs , Katerina Visnjic , Ki-Won Yoon
We present the temperature power spectra of the cosmic microwave background (CMB) derived from the three seasons of data from the Atacama Cosmology Telescope (ACT) at 148 GHz and 218 GHz, as well as the cross-frequency spectrum between the…
Cosmology and Nongalactic Astrophysics · Physics
2015-06-12
Sudeep Das , Thibaut Louis , Michael R. Nolta , Graeme E. Addison , Elia S. Battistelli , J Richard Bond , Erminia Calabrese , Devin Crichton Mark J. Devlin , Simon Dicker , Joanna Dunkley , Rolando Dünner , Joseph W. Fowler , Megan Gralla , Amir Hajian , Mark Halpern , Matthew Hasselfield , Matt Hilton , Adam D. Hincks , Renée Hlozek , Kevin M. Huffenberger , John P. Hughes , Kent D. Irwin , Arthur Kosowsky , Robert H. Lupton , Tobias A. Marriage , Danica Marsden , Felipe Menanteau , Kavilan Moodley , Michael D. Niemack , Lyman A. Page , Bruce Partridge , Erik D. Reese , Benjamin L. Schmitt , Neelima Sehgal , Blake D. Sherwin , Jonathan L. Sievers , David N. Spergel , Suzanne T. Staggs , Daniel S. Swetz , Eric R. Switzer , Robert Thornton , Hy Trac , Ed Wollack
We report a measurement of the power spectrum of cosmic microwave background (CMB) lensing from two seasons of Atacama Cosmology Telescope Polarimeter (ACTPol) CMB data. The CMB lensing power spectrum is extracted from both temperature and…
Cosmology and Nongalactic Astrophysics · Physics
2017-06-28
Blake D. Sherwin , Alexander van Engelen , Neelima Sehgal , Mathew Madhavacheril , Graeme E. Addison , Simone Aiola , Rupert Allison , Nicholas Battaglia , James A. Beall , Daniel T. Becker , J. Richard Bond , Erminia Calabrese , Rahul Datta , Mark J. Devlin , Rolando Dunner , Joanna Dunkley , Anna E. Fox , Patricio Gallardo , Mark Halpern , Matthew Hasselfield , Shawn Henderson , J. Colin Hill , Gene C. Hilton , Johannes Hubmayr , John P. Hughes , Adam D. Hincks , Renee Hlozek , Kevin M. Huffenberger , Brian Koopman , Arthur Kosowsky , Thibaut Louis , Loic Maurin , Jeff McMahon , Kavilan Moodley , Sigurd Naess , Federico Nati , Laura Newburgh , Michael D. Niemack , Lyman A. Page , Jonathan Sievers , David N. Spergel , Suzanne T. Staggs , Robert J. Thornton , Jeff Van Lanen , Eve Vavagiakis , Edward J. Wollack
We describe the objectives, design and predicted performance of Clover, which is a ground-based experiment to measure the faint ``B-mode'' polarisation pattern in the cosmic microwave background (CMB). To achieve this goal, clover will make…
Astrophysics · Physics
2008-06-03
C. E. North , B. R. Johnson , P. A. R. Ade , M. D. Audley , C. Baines , R. A. Battye , M. L. Brown , P. Cabella , P. G. Calisse , A. D. Challinor , W. D. Duncan , P. G. Ferreira , W. K. Gear , D. Glowacka , D. J. Goldie , P. K. Grimes , M. Halpern , V. Haynes , G. C. Hilton , K. D. Irwin , M. E. Jones , A. N. Lasenby , P. J. Leahy , J. Leech , B. Maffei , P. Mauskopf , S. J. Melhuish , D. O'Dea , S. M. Parsley , L. Piccirillo , G. Pisano , C. D. Reintsema , G. Savini , R. Sudiwala , D. Sutton , A. C. Taylor , G. Teleberg , D. Titterington , V. Tsaneva , C. Tucker , R. Watson , S. Withington , G. Yassin , J. Zhang
The lensing power spectrum from cosmic microwave background (CMB) temperature maps will be measured with unprecedented precision with upcoming experiments, including upgrades to ACT and SPT. Achieving significant improvements in…
Cosmology and Nongalactic Astrophysics · Physics
2015-06-17
A. van Engelen , S. Bhattacharya , N. Sehgal , G. P. Holder , O. Zahn , D. Nagai
We present the most significant measurement of the cosmic microwave background (CMB) lensing potential to date (at a level of 40 sigma), using temperature and polarization data from the Planck 2015 full-mission release. Using a…
Cosmology and Nongalactic Astrophysics · Physics
2016-09-23
Planck Collaboration , P. A. R. Ade , N. Aghanim , M. Arnaud , M. Ashdown , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , N. Bartolo , S. Basak , E. Battaner , K. Benabed , A. Benoît , A. Benoit-Lévy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , A. Catalano , A. Challinor , A. Chamballu , H. C. Chiang , P. R. Christensen , S. Church , D. L. Clements , S. Colombi , L. P. L. Colombo , C. Combet , F. Couchot , A. Coulais , B. P. Crill , A. Curto , F. Cuttaia , L. Danese , R. D. Davies , R. J. Davis , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , F. -X. Désert , J. M. Diego , H. Dole , S. Donzelli , O. Doré , M. Douspis , A. Ducout , J. Dunkley , X. Dupac , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , J. Fergusson , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frejsel , S. Galeotta , S. Galli , K. Ganga , M. Giard , Y. Giraud-Héraud , E. Gjerløw , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gregorio , A. Gruppuso , J. E. Gudmundsson , F. K. Hansen , D. Hanson , D. L. Harrison , S. Henrot-Versillé , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , K. M. Huffenberger , G. Hurier , A. H. Jaffe , T. R. Jaffe , W. C. Jones , M. Juvela , E. Keihänen , R. Keskitalo , T. S. Kisner , R. Kneissl , J. Knoche , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , R. Leonardi , J. Lesgourgues , F. Levrier , A. Lewis , M. Liguori , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , M. Maris , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , P. McGehee , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , C. A. Oxborrow , F. Paci , L. Pagano , F. Pajot , D. Paoletti , F. Pasian , G. Patanchon , O. Perdereau , L. Perotto , F. Perrotta , V. Pettorino , F. Piacentini , M. Piat , E. Pierpaoli , D. Pietrobon , S. Plaszczynski , E. Pointecouteau , G. Polenta , L. Popa , G. W. Pratt , G. Prézeau , S. Prunet , J. -L. Puget , J. P. Rachen , W. T. Reach , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , G. Roudier , M. Rowan-Robinson , J. A. Rubiño-Martín , B. Rusholme , M. Sandri , D. Santos , M. Savelainen , G. Savini , D. Scott , M. D. Seiffert , E. P. S. Shellard , L. D. Spencer , V. Stolyarov , R. Stompor , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , J. Tuovinen , L. Valenziano , J. Valiviita , B. Van Tent , P. Vielva , F. Villa , L. A. Wade , B. D. Wandelt , I. K. Wehus , M. White , D. Yvon , A. Zacchei , A. Zonca
We report a measurement of the B-mode polarization power spectrum in the cosmic microwave background (CMB) using the POLARBEAR experiment in Chile. The faint B-mode polarization signature carries information about the Universe's entire…
Cosmology and Nongalactic Astrophysics · Physics
2018-07-17
The POLARBEAR Collaboration , P. A. R. Ade , Y. Akiba , A. E. Anthony , K. Arnold , M. Atlas , D. Barron , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , M. Dobbs , T. Elleflot , J. Errard , G. Fabbian , C. Feng , D. Flanigan , A. Gilbert , W. Grainger , N. W. Halverson , M. Hasegawa , K. Hattori , M. Hazumi , W. L. Holzapfel , Y. Hori , J. Howard , P. Hyland , Y. Inoue , G. C. Jaehnig , A. H. Jaffe , B. Keating , Z. Kermish , R. Keskitalo , T. Kisner , M. Le Jeune , A. T. Lee , E. M. Leitch , E. Linder , M. Lungu , F. Matsuda , T. Matsumura , X. Meng , N. J. Miller , H. Morii , S. Moyerman , M. J. Myers , M. Navaroli , H. Nishino , H. Paar , J. Peloton , D. Poletti , E. Quealy , G. Rebeiz , C. L. Reichardt , P. L. Richards , C. Ross , I. Schanning , D. E. Schenck , B. D. Sherwin , A. Shimizu , C. Shimmin , M. Shimon , P. Siritanasak , G. Smecher , H. Spieler , N. Stebor , B. Steinbach , R. Stompor , A. Suzuki , S. Takakura , T. Tomaru , B. Wilson , A. Yadav , O. Zahn
The Simons Observatory (SO) will make precise temperature and polarization measurements of the cosmic microwave background (CMB) using a set of telescopes which will cover angular scales between 1 arcminute and tens of degrees, contain over…
Instrumentation and Methods for Astrophysics · Physics
2019-08-13
Nicholas Galitzki , Aamir Ali , Kam S. Arnold , Peter C. Ashton , Jason E. Austermann , Carlo Baccigalupi , Taylor Baildon , Darcy Barron , James A. Beall , Shawn Beckman , Sarah Marie M. Bruno , Sean Bryan , Paolo G. Calisse , Grace E. Chesmore , Yuji Chinone , Steve K. Choi , Gabriele Coppi , Kevin D. Crowley , Kevin T. Crowley , Ari Cukierman , Mark J. Devlin , Simon Dicker , Bradley Dober , Shannon M. Duff , Jo Dunkley , Giulio Fabbian , Patricio A. Gallardo , Martina Gerbino , Neil Goeckner-Wald , Joseph E. Golec , Jon E. Gudmundsson , Erin E. Healy , Shawn Henderson , Charles A. Hill , Gene C. Hilton , Shuay-Pwu Patty Ho , Logan A. Howe , Johannes Hubmayr , Oliver Jeong , Brian Keating , Brian J. Koopman , Kenji Kuichi , Akito Kusaka , Jacob Lashner , Adrian T. Lee , Yaqiong Li , Michele Limon , Marius Lungu , Frederick Matsuda , Philip D. Mauskopf , Andrew J. May , Nialh McCallum , Jeff McMahon , Federico Nati , Michael D. Niemack , John L. Orlowski-Scherer , Stephen C. Parshley , Lucio Piccirillo , Mayuri Sathyanarayana Rao , Christopher Raum , Maria Salatino , Joseph S. Seibert , Carlos Sierra , Max Silva-Feaver , Sara M. Simon , Suzanne T. Staggs , Jason R. Stevens , Aritoki Suzuki , Grant Teply , Robert Thornton , Calvin Tsai , Joel N. Ullom , Eve M. Vavagiakis , Michael R. Vissers , Benjamin Westbrook , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu
New telescopes are being built to measure the Cosmic Microwave Background (CMB) with unprecedented sensitivity, including Simons Observatory (SO), CCAT-prime, the BICEP Array, SPT-3G, and CMB Stage-4. We present observing strategies for…
Instrumentation and Methods for Astrophysics · Physics
2018-08-16
Jason R. Stevens , Neil Goeckner-Wald , Reijo Keskitalo , Nialh McCallum , Aamir Ali , Julian Borrill , Michael L. Brown , Yuji Chinone , Patricio A. Gallardo , Akito Kusaka , Adrian T. Lee , Jeff McMahon , Michael D. Niemack , Lyman Page , Giuseppe Puglisi , Maria Salatino , Suet Ying D. Mak , Grant Teply , Daniel B. Thomas , Eve M. Vavagiakis , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu
We correlate the positions of radio galaxies in the FIRST survey with the CMB lensing convergence estimated from the Atacama Cosmology Telescope over 470 square degrees to determine the bias of these galaxies. We remove optically…
Cosmology and Nongalactic Astrophysics · Physics
2015-08-06
Rupert Allison , Sam N. Lindsay , Blake D. Sherwin , Francesco de Bernardis , J. Richard Bond , Erminia Calabrese , Mark J. Devlin , Joanna Dunkley , Patricio Gallardo , Shawn Henderson , Adam D. Hincks , Renee Hlozek , Matt Jarvis , Arthur Kosowsky , Thibaut Louis , Mathew Madhavacheril , Jeff McMahon , Kavilan Moodley , Sigurd Naess , Laura Newburgh , Michael D. Niemack , Lyman A. Page , Bruce Partridge , Neelima Sehgal , David N. Spergel , Suzanne T. Staggs , Alexander van Engelen , Edward J. Wollack
First results of a Cosmic Microwave Background (CMB) anisotropy experiment conducted at the Observatorio del Teide (Tenerife, Spain) are presented. The instrument is a four channel (3.1, 2.1, 1.3 and 1.1 mm) $^3$He bolometer system coupled…
Astrophysics · Physics
2009-10-28
L. Piccirillo , B. Femenia , N. Kachwala , R. Rebolo , M. Limon , C. M. Guttierrez , J. Nicholas , R. K. Schaefer , R. A. Watson
In addition to its spectrum and temperature anisotropy, the 2.7K Cosmic Microwave Background is also expected to exhibit a low level of polarization. The spatial power spectrum of the polarization can provide details about the formation of…
Astrophysics · Physics
2009-10-30
Brian Keating , Peter Timbie , Alexander Polnarev , Julia Steinberger
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
We consider the effectiveness of foreground cleaning in the recovery of Cosmic Microwave Background (CMB) polarization sourced by gravitational waves for tensor-to-scalar ratios in the range $0<r<0.1$. Using the planned survey area,…
Cosmology and Nongalactic Astrophysics · Physics
2016-11-03
Duncan J. Watts , David Larson , Tobias A. Marriage , Maximilian H. Abitbol , John W. Appel , Charles L. Bennett , David T. Chuss , Joseph R. Eimer , Thomas Essinger-Hileman , Nathan J. Miller , Karwan Rostem , Edward J. Wollack