Related papers: Feedhorn development and scalability for Simons Ob…

The MAP Satellite Feed Horns

We present the design, manufacturing methods, and characterization of 20 microwave feed horns currently in use on the Microwave Anisotropy Probe (MAP) satellite. The nature of the cosmic microwave background (CMB) anisotropy requires a…

Astrophysics · Physics 2009-11-07 C. Barnes , M. Limon , L. Page , C. Bennett , S. Bradley , M. Halpern , G. Hinshaw , N. Jarosik , W. Jones , A. Kogut , S. Meyer , O. Motrunich , G. Tucker , D. Wilkinson , E. J. Wollack

Probing neutrino masses with CMB lensing extraction

We evaluate the ability of future cosmic microwave background (CMB) experiments to measure the power spectrum of large scale structure using quadratic estimators of the weak lensing deflection field. We calculate the sensitivity of upcoming…

Astrophysics · Physics 2009-11-13 Julien Lesgourgues , Laurence Perotto , Sergio Pastor , Michel Piat

Conceptual Design of the Modular Detector and Readout System for the CMB-S4 survey experiment

We present the conceptual design of the modular detector and readout system for the Cosmic Microwave Background Stage 4 (CMB-S4) ground-based survey experiment. CMB-S4 will map the cosmic microwave background (CMB) and the millimeter-wave…

Instrumentation and Methods for Astrophysics · Physics 2022-08-05 D. R. Barron , Z. Ahmed , J. Aguilar , A. J. Anderson , C. F. Baker , P. S. Barry , J. A. Beall , A. N. Bender , B. A. Benson , R. W. Besuner , T. W. Cecil , C. L. Chang , S. C. Chapman , G. E. Chesmore , G. Derylo , W. B. Doriese , S. M. Duff , T. Elleflot , J. P. Filippini , B. Flaugher , J. G. Gomez , P. K. Grimes , R. Gualtieri , I. Gullett , G. Haller , S. W. Henderson , D. Henke , R. Herbst , A. I. Huber , J. Hubmayr , M. Jonas , J. Joseph , C. L. King , J. M. Kovac , D. Kubik , M. Lisovenko , J. J. McMahon , L. Moncelsi , J. M. Nagy , B. Osherson , B. Reese , J. E. Ruhl , L. Sapozhnikov , A. Schillaci , S. M. Simon , A. Suzuki , G. Wang , B. Westbrook , V. Yefremenko , J. Zhang

The Simons Observatory: Large-Scale Characterization of 90/150 GHz TES Detector Modules

The Simons Observatory (SO) is a cosmic microwave background instrumentation suite being deployed in the Atacama Desert in northern Chile. The telescopes within SO use three types of dichroic transition-edge sensor (TES) detector arrays,…

Instrumentation and Methods for Astrophysics · Physics 2024-01-30 Daniel Dutcher , Shannon M. Duff , John C. Groh , Erin Healy , Johannes Hubmayr , Bradley R. Johnson , Dante Jones , Ben Keller , Lawrence T. Lin , Michael J. Link , Tammy J. Lucas , Samuel Morgan , Yudai Seino , Rita F. Sonka , Suzanne T. Staggs , Yuhan Wang , Kaiwen Zheng

Future CMB constraints on cosmic birefringence and implications for fundamental physics

The primary scientific target of the CMB polarization experiments that are currently being built and proposed is the detection of primordial tensor perturbations. As a byproduct, these instruments will significantly improve constraints on…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-17 Levon Pogosian , Meir Shimon , Matthew Mewes , Brian Keating

PROTOCALC, A W-band polarized calibrator for CMB Telescopes: application to Simons Observatory and CLASS

Current- and next-generation Cosmic Microwave Background (CMB) experiments will measure polarization anisotropies with unprecedented sensitivities. The need for high precision in these measurements underscores the importance of gaining a…

Instrumentation and Methods for Astrophysics · Physics 2025-06-02 Gabriele Coppi , Nadia Dachlythra , Federico Nati , Rolando Dünner-Planella , Alexandre E. Adler , Josquin Errard , Nicholas Galitzki , Yunyang Li , Matthew A. Petroff , Sara M. Simon , Ema Tsang King Sang , Amalia Villarrubia Aguilar , Edward J. Wollack , Mario Zannoni

Measuring the Hubble constant from the cooling of the CMB monopole

The cosmic microwave background (CMB) monopole temperature evolves with the inverse of the cosmological scale factor, independent of many cosmological assumptions. With sufficient sensitivity, real-time cosmological observations could thus…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-14 Maximilian H. Abitbol , J. Colin Hill , Jens Chluba

The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes

We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027, the SO Small Aperture Telescope (SAT) complement will be…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-19 The Simons Observatory Collaboration , I. Abril-Cabezas , S. Adachi , P. Ade , A. E. Adler , P. Agrawal , J. Aguirre , S. Aiola , T. Alford , A. Ali , D. Alonso , M. A. Alvarez , R. An , M. Aravena , K. Arnold , P. Ashton , F. Astori , Z. Atkins , J. Austermann , S. Azzoni , C. Baccigalupi , D. Baker , R. Balafendiev , A. Baleato Lizancos , D. Barron , P. Barry , J. Bartlett , A. Basyrov , N. Battaglia , E. S. Battistelli , R. Battye , A. Bayer , A. Bazarko , J. A. 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 , J. R. Bond , J. Borrill , J. Borrow , C. Braithwaite , T. L. R. Brien , M. L. Brown , S. M. Bruno , S. Bryan , R. Bustos , H. Cai , E. Calabrese , V. Calafut , F. M. Carl , A. Carones , J. Carron , A. Challinor , E. Chamberlain , P. Chanial , N. Chen , K. Cheung , B. Chiang , Y. Chinone , J. Chluba , H. S. Cho , S. K. Choi , M. Chu , J. Clancy , S. E. Clark , P. Clarke , J. Cleary , D. L. Clements , J. Connors , C. Contaldi , G. Coppi , L. Corbett , N. F. Cothard , W. Coulton , D. Crichton , K. D. Crowley , K. T. Crowley , A. Cukierman , J. M. D'Ewart , K. 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 , C. J. Duell , S. M. Duff , A. J. Duivenvoorden , J. Dunkley , M. Duparc , D. Dutcher , R. Dünner , M. Edenton , H. El Bouhargani , C. Embil Villagra , J. Errard , G. Fabbian , V. Fanfani , F. Farhadi Khouzani , G. S. Farren , J. Fergusson , S. Ferraro , R. Flauger , M. Forconi , A. Foster , K. Freese , J. C. Frisch , A. Frolov , G. Fuller , N. Galitzki , P. A. Gallardo , G. Galloni , J. T. Galvez 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 , J. E. Golec , S. Gordon , M. Gralla , S. Gratton , D. Green , J. C. Groh , C. Groppi , S. Grubb , Y. Guan , N. Gupta , J. E. Guðmundsson , B. Hadzhiyska , S. Hagstotz , P. Hargrave , S. Haridas , K. Harrington , I. Harrison , M. Hasegawa , M. Hasselfield , V. Haynes , M. Hazumi , A. He , E. Healy , S. W. Henderson , B. S. Hensley , E. Hertig , C. Hervías-Caimapo , M. Higuchi , C. A. Hill , J. C. Hill , M. Hilton , A. D. Hincks , G. Hinshaw , R. Hložek , A. Y. Q. Ho , S. Ho , S. P. Ho , T. D. Hoang , J. Hoh , J. Holder , J. Hood , E. Hornecker , A. L. Hornsby , S. C. Hotinli , Z. Huang , Z. B. Huber , J. Hubmayr , K. Huffenberger , A. Hughes , J. P. Hughes , A. Idicherian Lonappan , M. Ikape , K. Inaba , K. Irwin , J. Iuliano , A. H. Jaffe , B. Jain , D. Jain , H. T. Jense , O. Jeong , A. Johnson , B. R. Johnson , M. Johnson , M. E. Jones , N. Joshi , B. Jost , W. Kabalan , V. Kabra , D. Kaneko , J. Kania , E. D. Karpel , Y. Kasai , N. Katayama , B. Keating , B. Keller , R. Keskitalo , A. A. Khatua , J. Kim , T. Kisner , K. Kiuchi , K. Knowles , A. M. Kofman , Y. Koizumi , B. J. 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 , J. S. 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 , A. S. Maniyar , G. A. Marques , P. Masson , J. Mates , J. Mathewson , T. Matsumura , P. Mauskopf , A. May , N. McCallum , H. McCarrick , F. McCarthy , M. McCulloch , J. McMahon , P. D. 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 , S. K. Nerval , L. Newburgh , D. V. Nguyen , A. Nicola , M. D. Niemack , H. Nishino , Y. Nishinomiya , A. Novelli , S. O'Neill , N. Okumoto , A. Orlando , J. Orlowski-Scherer , L. Pagano , L. A. Page , S. Pandey , A. Papageorgiou , I. Paraskevakos , B. Partridge , D. Patel , R. Patki , S. Paulino Korte , M. Peel , K. Perez 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 , F. J. Qu , F. Rahman , M. J. Randall , C. Ranucci , C. Raum , R. Reeves , C. L. Reichardt , M. Remazeilles , X. Ren , Y. Rephaeli , D. Riechers , B. Reid Guachalla , A. Rizzieri , J. Robe , M. F. 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 , G. H. Sanders , D. Sasaki , M. Sathyanarayana Rao , T. P. 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 , J. E. Shroyer , C. Sierra , J. Sievers , C. Sifón , P. Sikhosana , M. Silva-Feaver , S. M. Simon , A. Sinclair , K. Smith , W. Sohn , X. Song , R. F. Sonka , T. Souverin , J. Spisak , S. T. Staggs , G. Stein , J. R. Stevens , R. Stompor , E. Storer , R. Sudiwala , Y. Sueno , J. Sugiyama , P. Suman , K. M. Surrao , S. Sutariya , A. Suzuki , J. Suzuki , O. Tajima , R. Takaku , S. Takakura , A. Takeuchi , I. Tansieri , A. C. Taylor , G. Teply , T. Terasaki , A. Thomas , D. B. Thomas , R. Thornton , P. Timbie , H. Trac , T. Tsan , E. Tsang King Sang , C. Tucker , J. Ullom , L. Vacher , L. Vale , A. van Engelen , J. Van Lanen , J. van Marrewijk , D. D. Van Winkle , C. Vargas , E. M. Vavagiakis , I. Veenendaal , C. Vergès , A. Villarrubia Aguilar , M. Vissers , M. Viña , K. Wagoner , S. Walker , L. Walters , Y. Wang , B. Westbrook , J. Williams , P. Williams , J. Wilson , H. Winch , E. J. 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

A Millimeter-wave Technique for correlation and beam combination for cosmology

We discuss new techniques and ideas in mm-wave instrumentation that can be used in CMB (Cosmic Microwave background) polarization experiments. Novel techniques in antenna receiver, beam combining and detector systems have resulted in…

Instrumentation and Methods for Astrophysics · Physics 2024-03-07 Siddharth Savyasachi Malu

Simons Observatory: Observatory Scheduler and Automated Data Processing

The Simons Observatory (SO) is a next-generation ground-based telescope located in the Atacama Desert in Chile, designed to map the cosmic microwave background (CMB) with unprecedented precision. The observatory consists of three small…

Instrumentation and Methods for Astrophysics · Physics 2024-06-18 Yilun Guan , Kathleen Harrington , Jack Lashner , Sanah Bhimani , Kevin T. Crowley , Nicholas Galitzki , Ken Ganga , Matthew Hasselfield , Adam D. Hincks , Brian Keating , Brian J. Koopman , Laura Newburgh , David V. Nguyen , Max Silva-Feaver

CMB polarization analysis on circular scans

Most cosmic microwave background experiments observe the sky along circular or near-circular scans on the celestial sphere. For such experiments, we show that simple linear systems connect the Fourier spectra of temperature and polarization…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-25 Jia-Rui Li , Chunlong Li , Jie Jiang , Yi-Fu Cai , Jacques Delabrouille , Deliang Wu , Hong Li

Detecting the B-mode Polarisation of the CMB with Clover

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

Lensing effect on polarization in microwave background: extracting convergence power spectrum

Matter inhomogeneities along the line of sight deflect the cosmic microwave background (CMB) photons originating at the last scattering surface at redshift $z \sim 1100$. These distortions modify the pattern of CMB polarization. We identify…

Astrophysics · Physics 2009-10-31 Jacek Guzik , Uros Seljak , Matias Zaldarriaga

A dual output polarimeter devoted to the study of the Cosmic Microwave Background

We have developed a correlation radiometer at 33 GHz devoted to the search for residual polarization of the Cosmic Microwave Background (CMB). The two instruments`s outputs are linear combination of two Stokes Parameters (Q and U or U and…

Astrophysics · Physics 2009-11-07 M. Gervasi , G. Boella , F. Cavaliere , G. Grossetti , A. Passerini , G. Sironi , A. Tartari , M. Zannoni

The POLARBEAR-2 and the Simons Array Experiment

We present an overview of the design and status of the \Pb-2 and the Simons Array experiments. \Pb-2 is a Cosmic Microwave Background polarimetry experiment which aims to characterize the arc-minute angular scale B-mode signal from weak…

Instrumentation and Methods for Astrophysics · Physics 2016-02-17 A. Suzuki , P. Ade , Y. Akiba , C. Aleman , K. Arnold , C. Baccigalupi , B. Barch , D. Barron , A. Bender , D. Boettger , J. Borrill , S. Chapman , Y. Chinone , A. Cukierman , M. Dobbs , A. Ducout , R. Dunner , T. Elleflot , J. Errard , G. Fabbian , S. Feeney , C. Feng , T. Fujino , G. Fuller , A. Gilbert , N. Goeckner-Wald , J. Groh , T. De Haan , G. Hall , N. Halverson , T. Hamada , M. Hasegawa , K. Hattori , M. Hazumi , C. Hill , W. Holzapfel , Y. Hori , L. Howe , Y. Inoue , F. Irie , G. Jaehnig , A. Jaffe , O. Jeong , N. Katayama , J. Kaufman , K. Kazemzadeh , B. Keating , Z. Kermish , R. Keskitalo , T. Kisner , A. Kusaka , M. Le Jeune , A. Lee , D. Leon , E. Linder , L. Lowry , F. Matsuda , T. Matsumura , N. Miller , K. Mizukami , J. Montgomery , M. Navaroli , H. Nishino , J. Peloton , D. Poletti , G. Rebeiz , C. Raum , C. Reichardt , P. Richards , C. Ross , K. Rotermund , Y. Segawa , B. Sherwin , I. Shirley , P. Siritanasak , N. Stebor , R. Stompor , J. Suzuki , O. Tajima , S. Takada , S. Takakura , S. Takatori , A. Tikhomirov , T. Tomaru , B. Westbrook , N. Whitehorn , T. Yamashita , A. Zahn , O. Zahn

How Can We Study the Local Universe with CMB Photons?

We show how observations of temperature fluctuations in cosmic microwave background (CMB) can be used to extract information related to the large scale structure, including dark matter distribution, pressure and halo velocities involving…

Astrophysics · Physics 2007-05-23 Asantha Cooray

Consistency of CMB experiments beyond cosmic variance

The next generation of Cosmic Microwave Background experiments will produce cosmic variance limited observations over a large fraction of sky and for a large range of multipoles. In this work we discuss different consistency tests that can…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-22 Thibaut Louis , Xavier Garrido , Adam Soussana , Matthieu Tristram , Sophie Henrot-Versillé , Sylvain Vanneste

Half-wave Plates for the Spider Cosmic Microwave Background Polarimeter

Spider is a balloon-borne array of six telescopes that will observe the Cosmic Microwave Background. The 2400 antenna-coupled bolometers in the instrument will make a polarization map of the CMB with ~degree resolution at 150 GHz and 95…

Instrumentation and Methods for Astrophysics · Physics 2014-02-12 Sean Bryan

CMB Polarization Measurements

The polarization of the Cosmic Microwave Background (CMB) radiation carries essential information on early stages of the Universe such as the cosmic inflation, forming cosmological structures through gravitational lensing, and the epoch of…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-22 E. Carretti , C. Baccigalupi

Demonstration of 220/280 GHz Multichroic Feedhorn-Coupled TES Polarimeter

We describe the design and measurement of feedhorn-coupled, transition-edge sensor (TES) polarimeters with two passbands centered at 220 GHz and 280 GHz, intended for observations of the cosmic microwave background. Each pixel couples…

Instrumentation and Methods for Astrophysics · Physics 2020-01-29 Samantha Walker , Carlos E. Sierra , Jason E. Austermann , James A. Beall , Daniel T. Becker , Bradley J. Dober , Shannon M. Duff , Gene C. Hilton , Johannes Hubmayr , Jeffrey L. Van Lanen , Jeffrey J. McMahon , Sara M. Simon , Joel N. Ullom , Michael R. Vissers