Related papers: BICEP Array cryostat and mount design

Comparison of the Planck 2018 CMB polarization maps in the BICEP2/Keck region

We examine the statistical properties of polarization maps from Planck 2018 within the patch of sky observed by the BICEP2/Keck experiment using the one point distribution function (1PDF), skewness, and kurtosis statistics. Our analysis is…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-17 Hao Liu , James Creswell , Pavel Naselsky

Development of Multi-Chroic MKIDs for Next-Generation CMB Polarization Studies

We report on the status of an ongoing effort to develop arrays of horn-coupled, polarization-sensitive microwave kinetic inductance detectors (MKIDs) that are each sensitive to two spectral bands between 125 and 280 GHz. These multi-chroic…

Instrumentation and Methods for Astrophysics · Physics 2018-07-31 B. R. Johnson , D. Flanigan , M. H. Abitbol , P. A. R. Ade , S. Bryan , H. -M. Cho , R. Datta , P. Day , S. Doyle , K. Irwin , G. Jones , D. Li , P. Mauskopf , H. McCarrick , J. McMahon , A. Miller , G. Pisano , Y. Song , H. Surdi , C. Tucker

BICEP/Keck XIX: Extremely Thin Composite Polymer Vacuum Windows for BICEP and Other High Throughput Millimeter Wave Telescopes

Millimeter-wave refracting telescopes targeting the degree-scale structure of the cosmic microwave background (CMB) have recently grown to diffraction-limited apertures of over 0.5 meters. These instruments are entirely housed in vacuum…

Instrumentation and Methods for Astrophysics · Physics 2026-03-16 Keck Collaboration , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , D. Beck , J. J. Bock , H. Boenish , V. Buza , K. Carter , J. R. Cheshire , J. Connors , J. Cornelison , L. Corrigan , M. Crumrine , S. Crystian , A. J. Cukierman , E. Denison , L. Duband , M. Echter , M. Eiben , B. D. Elwood , S. Fatigoni , J. P. Filippini , A. Fortes , M. Gao , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , J. A. Grayson , A. Greathouse , P. K. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. A. Harrison , S. Henderson , J. Hubmayr , H. Hui , K. D. Irwin , J. H. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C. Kuo , K. Lau , M. Lautzenhiser , A. Lennox , T. Liu , K. G. Megerian , M. Miller , L. Minutolo , L. Moncelsi , Y. Nakato , H. T. Nguyen , R. O'brient , S. Paine , A. Patel , M. A. Petroff , A. R. Polish , T. Prouve , C. Pryke , C. D. Reintsema , T. Romand , D. Santalucia , A. Schillaci , B. Schmitt , E. Sheffield , B. Singari , K. Sjoberg , A. Soliman , T. St Germaine , A. Steiger , B. Steinbach , R. Sudiwala , K. L. Thompson , C. Tsai , C. Tucker , A. D. Turner , C. Vergès , A. G. Vieregg , A. Wandui , A. C. Weber , J. Willmert , W. L. K. Wu , H. Yang , C. Yu , L. Zeng , C. Zhang , S. Zhang

Design and pre-flight performance of SPIDER 280 GHz receivers

In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimized to search for a primordial B-mode polarization signature…

Instrumentation and Methods for Astrophysics · Physics 2020-12-24 E. C. Shaw , P. A. R. Ade , S. Akers , M. Amiri , J. Austermann , J. Beall , D. T. Becker , S. J. Benton , A. S. Bergman , J. J. Bock , J. R. Bond , S. A. Bryan , H. C. Chiang , C. R. Contaldi , R. S. Domagalski , O. Doré , S. M. Duff , A. J. Duivenvoorden , H. K. Eriksen , M. Farhang , J. P. Filippini , L. M. Fissel , A. A. Fraisse , K. Freese , M. Galloway , A. E. Gambrel , N. N. Gandilo , K. Ganga , A. Grigorian , R. Gualtieri , J. E. Gudmundsson , M. Halpern , J. Hartley , M. Hasselfield , G. Hilton , W. Holmes , V. V. Hristov , Z. Huang , J. Hubmayr , K. D. Irwin , W. C. Jones , A. Kahn , C. L. Kuo , Z. D. Kermish , A. Lennox , J. S. -Y. Leung , S. Li , P. V. Mason , K. Megerian , L. M. Mocanu , L. Moncelsi , T. A. Morford , J. M. Nagy , R. Nie , C. B. Netterfield , M. Nolta , B. Osherson , I. L. Padilla , A. S. Rahlin , S. Redmond , C. Reintsema , L. J. Romualdez , J. E. Ruhl , M. C. Runyan , J. A. Shariff , C. Shiu , J. D. Soler , X. Song , H. Thommesen , A. Trangsrud , C. Tucker , R. S. Tucker , A. D. Turner , J. Ullom , J. F. van der List , J. Van Lanen , M. R. Vissers , A. C. Weber , S. Wen , I. K. Wehus , D. V. Wiebe , E. Y. Young

Design of the on-board data compression for the bolometer data of LiteBIRD

LiteBIRD is a space-borne experiment dedicated to detecting large-scale $B$-mode anisotropies in the linear polarization of the Cosmic Microwave Background (CMB) predicted by the theory of inflation. It is planned to be launched in the late…

Instrumentation and Methods for Astrophysics · Physics 2022-09-27 Mayu Tominaga , Masahiro Tsujimoto , Graeme Smecher , Hirokazu Ishino

Compensated Isocurvature Perturbations and the Cosmic Microwave Background

Measurements of cosmic microwave background (CMB) anisotropies constrain isocurvature fluctuations between photons and non-relativistic particles to be sub-dominant to adiabatic fluctuations. Perturbations in the relative number densities…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-09 Daniel Grin , Olivier Doré , Marc Kamionkowski

Concept Design of Low Frequency Telescope for CMB B-mode Polarization satellite LiteBIRD

LiteBIRD has been selected as JAXA's strategic large mission in the 2020s, to observe the cosmic microwave background (CMB) $B$-mode polarization over the full sky at large angular scales. The challenges of LiteBIRD are the wide…

Instrumentation and Methods for Astrophysics · Physics 2021-01-19 Y. Sekimoto , P. A. R. Ade , A. Adler , E. Allys , K. Arnold , D. Auguste , J. Aumont , R. Aurlien , J. Austermann , C. Baccigalupi , A. J. Banday , R. Banerji , R. B. Barreiro , S. Basak , J. Beall , D. Beck , S. Beckman , J. Bermejo , P. de Bernardis , M. Bersanelli , J. Bonis , J. Borrill , F. Boulanger , S. Bounissou , M. Brilenkov , M. Brown , M. Bucher , E. Calabrese , P. Campeti , A. Carones , F. J. Casas , A. Challinor , V. Chan , K. Cheung , Y. Chinone , J. F. Cliche , L. Colombo , F. Columbro , J. Cubas , A. Cukierman , D. Curtis , G. D'Alessandro , N. Dachlythra , M. De Petris , C. Dickinson , P. Diego-Palazuelos , M. Dobbs , T. Dotani , L. Duband , S. Duff , J. M. Duval , K. Ebisawa , T. Elleflot , H. K. Eriksen , J. Errard , T. Essinger-Hileman , F. Finelli , R. Flauger , C. Franceschet , U. Fuskeland , M. Galloway , K. Ganga , J. R. Gao , R. Genova-Santos , M. Gerbino , M. Gervasi , T. Ghigna , E. Gjerløw , M. L. Gradziel , J. Grain , F. Grupp , A. Gruppuso , J. E. Gudmundsson , T. de Haan , N. W. Halverson , P. Hargrave , T. Hasebe , M. Hasegawa , M. Hattori , M. Hazumi , S. Henrot-Versillé , D. Herman , D. Herranz , C. A. Hill , G. Hilton , Y. Hirota , E. Hivon , R. A. Hlozek , Y. Hoshino , E. de la Hoz , J. Hubmayr , K. Ichiki , T. iida , H. Imada , K. Ishimura , H. Ishino , G. Jaehnig , T. Kaga , S. Kashima , N. Katayama , A. Kato , T. Kawasaki , R. Keskitalo , T. Kisner , Y. Kobayashi , N. Kogiso , A. Kogut , K. Kohri , E. Komatsu , K. Komatsu , K. Konishi , N. Krachmalnicoff , I. Kreykenbohm , C. L. Kuo , A. Kushino , L. Lamagna , J. V. Lanen , M. Lattanzi , A. T. Lee , C. Leloup , F. Levrier , E. Linder , T. Louis , G. Luzzi , T. Maciaszek , B. Maffei , D. Maino , M. Maki , S. Mandelli , E. Martinez-Gonzalez , S. Masi , T. Matsumura , A. Mennella , M. Migliaccio , Y. Minanmi , K. Mitsuda , J. Montgomery , L. Montier , G. Morgante , B. Mot , Y. Murata , J. A. Murphy , M. Nagai , Y. Nagano , T. Nagasaki , R. Nagata , S. Nakamura , T. Namikawa , P. Natoli , S. Nerval , T. Nishibori , H. Nishino , C. O'Sullivan , H. Ogawa , H. Ogawa , S. Oguri , H. Ohsaki , I. S. Ohta , N. Okada , N. Okada , L. Pagano , A. Paiella , D. Paoletti , G. Patanchon , J. Peloton , F. Piacentini , G. Pisano , G. Polenta , D. Poletti , T. Prouvé , G. Puglisi , D. Rambaud , C. Raum , S. Realini , M. Reinecke , M. Remazeilles , A. Ritacco , G. Roudil , J. A. Rubino-Martin , M. Russell , H. Sakurai , Y. Sakurai , M. Sandri , M. Sasaki , G. Savini , D. Scott , J. Seibert , B. Sherwin , K. Shinozaki , M. Shiraishi , P. Shirron , G. Signorelli , G. Smecher , S. Stever , R. Stompor , H. Sugai , S. Sugiyama , A. Suzuki , J. Suzuki , T. L. Svalheim , E. Switzer , R. Takaku , H. Takakura , S. Takakura , Y. Takase , Y. Takeda , A. Tartari , E. Taylor , Y. Terao , H. Thommesen , K. L. Thompson , B. Thorne , T. Toda , M. Tomasi , M. Tominaga , N. Trappe , M. Tristram , M. Tsuji , M. Tsujimoto , C. Tucker , J. Ullom , G. Vermeulen , P. Vielva , F. Villa , M. Vissers , N. Vittorio , I. Wehus , J. Weller , B. Westbrook , J. Wilms , B. Winter , E. J. Wollack , N. Y. Yamasaki , T. Yoshida , J. Yumoto , M. Zannoni , A. Zonca

Thermal architecture for the QUBIC cryogenic receiver

QUBIC, the QU Bolometric Interferometer for Cosmology, is a novel forthcoming instrument to measure the B-mode polarization anisotropy of the Cosmic Microwave Background. The detection of the B-mode signal will be extremely challenging;…

Instrumentation and Methods for Astrophysics · Physics 2018-11-07 A. J. May , C. Chapron , G. Coppi , G. D'Alessandro , P. de Bernardis , S. Masi , S. Melhuish , M. Piat , L. Piccirillo , A. Schillaci , J. -P. Thermeau , P. Ade , G. Amico , D. Auguste , J. Aumont , S. Banfi , G. Barbara , P. Battaglia , E. Battistelli , A. Bau , B. Belier , D. Bennett , L. Berge , J. -Ph. Bernard , M. Bersanelli , M. -A. Bigot-Sazy , N. Bleurvacq , J. Bonaparte , J. Bonis , G. Bordier , E. Breelle , E. Bunn , D. Burke , D. Buzi , A. Buzzelli , F. Cavaliere , P. Chanial , R. Charlassier , F. Columbro , A. Coppolecchia , F. Couchot , R. D'Agostino , G. De Gasperis , M. De Leo , M. De Petris , A. Di Donato , L. Dumoulin , A. Etchegoyen , A. Fasciszewski , C. Franceschet , M. M. Gamboa Lerena , B. Garcia , X. Garrido , M. Gaspard , A. Gault , D. Gayer , M. Gervasi , M. Giard , Y. Giraud-Heraud , M. Gomez Berisso , M. Gonzalez , M. Gradziel , L. Grandsire , E. Guerrard , J. -Ch. Hamilton , D. Harari , V. Haynes , S. Henrot-Versille , D. T. Hoang , F. Incardona , E. Jules , J. Kaplan , A. Korotkov , C. Kristukat , L. Lamagna , S. Loucatos , T. Louis , A. Lowitz , V. Lukovic , R. Luterstein , B. Maffei , S. Marnieros , A. Mattei , M. A. McCulloch , M. C. Medina , L. Mele , A. Mennella , L. Montier , L. M. Mundo , J. A. Murphy , J. D. Murphy , C. O'Sullivan , E. Olivieri , A. Paiella , F. Pajot , A. Passerini , H. Pastoriza , A. Pelosi , C. Perbost , O. Perdereau , F. Pezzotta , F. Piacentini , G. Pisano , G. Polenta , D. Prele , R. Puddu , D. Rambaud , P. Ringegni , G. E. Romero , M. Salatino , C. G. Scoccola , S. Scully , S. Spinelli , M. Stolpovskiy , F. Suarez , A. Tartari , P. Timbie , S. A. Torchinsky , M. Tristram , V. Truongcanh , C. Tucker , G. Tucker , S. Vanneste , D. Vigano , N. Vittorio , F. Voisin , B. Watson , F. Wicek , M. Zannoni , A. Zullo

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

Ultra-Thin Large-Aperture Vacuum Windows for Millimeter Wavelengths Receivers

Targeting faint polarization patterns arising from Primordial Gravitational Waves in the Cosmic Microwave Background requires excellent observational sensitivity. Optical elements in small aperture experiments such as Bicep3 and Keck Array…

Instrumentation and Methods for Astrophysics · Physics 2018-08-03 Denis Barkats , Marion I. Dierickx , John M. Kovac , Chris Pentacoff , P. A. R. Ade , Z. Ahmed , R. W. Aikin , K. D. Alexander , S. J. Benton , C. A. Bischof , J. J. Bock , R. Bowens-Rubin , J. A. Brevik , I. Buder , E. Bullock , V. Buza , J. Connors , J. Cornelison , B. P. Crill , M. Crumrine , L. Duband , C. Dvorkin , J. P. Filippini , S. Fliescher , J. Grayson , G. Hall , M. Halpern , S. Harrison , S. R. Hildebrandt , G. C. Hilton , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , J. P. Kaufman , B. G. Keating , S. Kefeli , S. A. Kernasovskiy , C. L. Kuo , K. Lau , N. A. Larsen , E. M. Leitch , M. Lueker , K. G. Megerian , L. Moncelsi , T. Namikawa , H. T. Nguyen , R. O'Brient , R. W. Ogburn , S. Palladino , C. Pryke , B. Racine , S. Richter , R. Schwarz , A. Schillaci , C. D. Sheehy , A. Soliman , T. St. Germaine , Z. K. Staniszewski , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umilta , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , H. Yang , K. W. Yoon , C. Zhang

A New Upper Limit on the Polarization of the Cosmic Microwave Background Radiation

The Cosmic Microwave Background Radiation (CMB) is an invaluable probe of the conditions of the early universe. Recent measurements of its spatial anisotropy have allowed accurate determinations of several fundamental cosmological…

Astrophysics · Physics 2009-09-29 Christopher O'Dell

Analysis Issues for Large CMB Data Sets

Multi-frequency, high resolution, full sky measurements of the anisotropy in both temperature and polarisation of the cosmic microwave background radiation are the goals of the satellite missions MAP (NASA) and Planck (ESA). The ultimate…

Astrophysics · Physics 2007-05-23 K. M. Gorski , E. Hivon , B. D. Wandelt

CMB polarization features from inflation versus reionization

The angular power spectrum of the cosmic microwave background temperature anisotropy observed by WMAP has an anomalous dip at l~20 and bump at l~40. One explanation for this structure is the presence of features in the primordial curvature…

Cosmology and Nongalactic Astrophysics · Physics 2009-05-19 Michael J. Mortonson , Cora Dvorkin , Hiranya V. Peiris , Wayne Hu

A Measurement of the Largest-Scale CMB E-mode Polarization with CLASS

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

New Measurements of Fine-Scale CMB Polarization Power Spectra from CAPMAP at Both 40 and 90 GHz

We present new measurements of the cosmic microwave background (CMB) polarization from the final season of the Cosmic Anisotropy Polarization MAPper (CAPMAP). The data set was obtained in winter 2004-2005 with the 7 m antenna in Crawford…

Astrophysics · Physics 2010-05-12 CAPMAP Collaboration , C. Bischoff , L. Hyatt , J. J. McMahon , G. W. Nixon , D. Samtleben , K. M. Smith , K. Vanderlinde , D. Barkats , P. Farese , T. Gaier , J. O. Gundersen , M. M. Hedman , S. T. Staggs , B. Winstein

Polarized Synchrotron Foreground Assessment for CMB Experiments

Polarized Galactic synchrotron emission is an undesirable foreground for cosmic microwave background (CMB) experiments observing at frequencies $< 150$ GHz. We perform a combined analysis of observational data at 1.4, 2.3, 23, 30 and 33 GHz…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-07 Janet L. Weiland , Graeme E. Addison , Charles L. Bennett , Mark Halpern , Gary Hinshaw

An Instrument For Investigation of the Cosmic Microwave Background Radiation at Intermediate Angular Scales

We describe an off-axis microwave telescope for observations of the anisotropy in the cosmic microwave background (CMB) radiation on angular scales between 0.5 deg and 3 deg. The receiver utilizes cryogenic high-electron-mobility transistor…

Astrophysics · Physics 2009-10-28 E. J. Wollack , M. J. Devlin , N. Jarosik , C. B. Netterfield , L. Page , D. Wilkinson

Planck and BICEP/Keck Array 2018 constraints on primordial gravitational waves and perspectives for future B-mode polarization measurements

Current and future B-mode polarization data are the most powerful observables to constrain gravitational waves from the early Universe. We set conservative constraints on tensor modes when relaxing the inflationary consistency condition…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-09 Daniela Paoletti , Fabio Finelli , Jussi Valiviita , Masashi Hazumi

Development of MKIDs for measurement of the Cosmic Microwave Background with the South Pole Telescope

We present details of the design, simulation, and initial test results of prototype detectors for the fourth-generation receiver of the South Pole Telescope (SPT). Optimized for the detection of key secondary anisotropies of the cosmic…

Instrumentation and Methods for Astrophysics · Physics 2022-06-29 Karia Dibert , Pete Barry , Zhaodi Pan , Adam Anderson , Bradford Benson , Clarence Chang , Kirit Karkare , Juliang Li , Tyler Natoli , Maclean Rouble , Erik Shirokoff , Antony Stark

Commissioning the CMB polarization telescope GroundBIRD with the full set of detectors

GroundBIRD is a ground-based cosmic microwave background (CMB) experiment for observing the polarization pattern imprinted on large angular scales ($\ell > 6$ ) from the Teide Observatory in Tenerife, Spain. Our primary scientific objective…

Instrumentation and Methods for Astrophysics · Physics 2024-07-25 Miku Tsujii , Jochem J. A. Baselmans , Jihoon Choi , Antonio H. M. Coppens , Alessandro Fasano , Ricardo Tanausú Génova-Santos , Makoto Hattori , Masashi Hazumi , Shunsuke Honda , Takuji Ikemitsu , Hidesato Ishida , Hikaru Ishitsuka , Hoyong Jeong , Yonggil Jo , Kenichi Karatsu , Keisuke Kataoka , Kenji Kiuchi , Junta Komine , Ryo Koyano , Hiroki Kutsuma , Kyungmin Lee , Satoru Mima , Makoto Nagai , Taketo Nagasaki , Masato Naruse , Shugo Oguri , Chiko Otani , Michael W. Peel , Rafael Rebolo , José Alberto Rubiño-Martín , Yutaro Sekimoto , Yoshinori Sueno , Junya Suzuki , Tohru Taino , Osamu Tajima , Tomonaga Tanaka , David J. Thoen , Nozomu Tomita , Yuta Tsuji , Tomohisa Uchida , Eunil Won , Mitsuhiro Yoshida