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The POLARBEAR-2/Simons Array Cosmic Microwave Background (CMB) polarization experiment is an upgrade and expansion of the existing POLARBEAR-1 (PB-1) experiment, located in the Atacama desert in Chile. Along with the CMB temperature and…

Instrumentation and Methods for Astrophysics · Physics 2018-06-15 Logan Howe , Calvin Tsai , Lindsay Lowry , Kam Arnold , Gabriele Coppi , John Groh , Xiaoyu Guo , Brian Keating , Adrian Lee , Andrew J. May , Lucio Piccirillo , Nathan Stebor , Grant Teply

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…

Upcoming cosmic microwave background (CMB) experiments aim to detect primordial gravitational waves with unprecedented sensitivity. Effective foreground removal is essential to avoid biases in the measurement of the tensor-to-scalar ratio…

We presented the optimization procedures of the baffle mounted on the GroundBIRD telescope for measuring the polarization of the Cosmic Microwave Background~(CMB). The telescope employs dual mirror reflective telescopes installed in a…

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

The polarization of the Cosmic Microwave Background (CMB)is a powerful observational tool at hand for modern cosmology. It allows to break the degeneracy of fundamental cosmological parameters one cannot obtain using only anisotropy data…

Astrophysics · Physics 2009-11-07 M. V. Sazhin , G. Sironi , O. S. Khovanskaya

The Cosmic Microwave Background (CMB) is a fundamental observational tool in modern cosmology. The linear polarization of the CMB provides a crucial observational tool for exploring new physics, including the inflationary paradigm and…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-12 Vyoma Muralidhara

Observations of the polarization of the cosmic microwave backround (CMB) have the potential to place much tighter constraints on cosmological parameters than observations of the fluctuations in temperature alone. We discuss using CMB…

Astrophysics · Physics 2009-10-30 William H. Kinney

The polarization of the cosmic microwave background (CMB) is encoded with exactly the same cosmic information as the CMB's temperature anistropy. However, polarization has the additional promise of accurately probing the reionization…

Astrophysics · Physics 2009-11-13 Brian Keating , Nathan Miller

The BICEP3 Polarimeter is a small aperture, refracting telescope, dedicated to the observation of the Cosmic Microwave Background (CMB) at 95GHz. It is designed to target degree angular scale polarization patterns, in particular the…

The Simons Observatory (SO) is a group of modern telescopes dedicated to observing the polarized cosmic microwave background (CMB), transients, and more. The Observatory consists of four telescopes and instruments, with over 60,000…

Instrumentation and Methods for Astrophysics · Physics 2025-10-07 David V. Nguyen , Sanah Bhimani , Nicholas Galitzki , Brian J. Koopman , Jack Lashner , Laura Newburgh , Max Silva-Feaver , Kyohei Yamada

Observation of the fine structures (anisotropies, polarization, spectral distortions) of the Cosmic Microwave Background (CMB) is hampered by instabilities, 1/f noise and asymmetries of the radiometers used to carry on the measurements.…

Astrophysical foreground substraction is crucial to retrieve the cosmic microwave background (CMB) polarization out of the observed data. Recent efforts have been carried out towards the development of a minimally informed component…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-08 Clément Leloup , Magdy Morshed , Arianna Rizzieri

The Simons Observatory (SO), a next-generation ground-based CMB experiment in its final stages of construction, will target primordial $B$-modes with unprecedented sensitivity to set tight bounds on the amplitude of inflationary…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-24 Emilie Hertig , Kevin Wolz , Toshiya Namikawa , Antón Baleato Lizancos , Susanna Azzoni , Anthony Challinor

The CMB Stage 4 (CMB-S4) experiment is a next-generation, ground-based experiment that will measure the cosmic microwave background (CMB) polarization to unprecedented accuracy, probing the signature of inflation, the nature of cosmic…

We explore the capability of measuring lensing signals in $LiteBIRD$ full-sky polarization maps. With a $30$ arcmin beam width and an impressively low polarization noise of $2.16\,\mu$K-arcmin, $LiteBIRD$ will be able to measure the…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-06 A. I. Lonappan , T. Namikawa , G. Piccirilli , P. Diego-Palazuelos , M. Ruiz-Granda , M. Migliaccio , C. Baccigalupi , N. Bartolo , D. Beck , K. Benabed , A. Challinor , J. Errard , S. Farrens , A. Gruppuso , N. Krachmalnicoff , E. Martínez-González , V. Pettorino , B. Sherwin , J. Starck , P. Vielva , R. Akizawa , A. Anand , J. Aumont , R. Aurlien , S. Azzoni , M. Ballardini , A. J. Banday , R. B. Barreiro , M. Bersanelli , D. Blinov , M. Bortolami , T. Brinckmann , E. Calabrese , P. Campeti , A. Carones , F. Carralot , F. J. Casas , K. Cheung , L. Clermont , F. Columbro , G. Conenna , A. Coppolecchia , F. Cuttaia , G. D'Alessandro , P. de Bernardis , M. De Petris , S. Della Torre , E. Di Giorgi , H. K. Eriksen , F. Finelli , C. Franceschet , U. Fuskeland , G. Galloni , M. Galloway , M. Georges , M. Gerbino , M. Gervasi , R. T. Génova-Santos , T. Ghigna , S. Giardiello , C. Gimeno-Amo , E. Gjerløw , M. Hazumi , S. Henrot-Versillé , L. T. Hergt , E. Hivon , K. Kohri , E. Komatsu , L. Lamagna , M. Lattanzi , C. Leloup , M. Lembo , M. López-Caniego , G. Luzzi , J. Macias-Perez , B. Maffei , S. Masi , M. Massa , S. Matarrese , T. Matsumura , S. Micheli , A. Moggi , M. Monelli , L. Montier , G. Morgante , B. Mot , L. Mousset , R. Nagata , P. Natoli , A. Novelli , I. Obata , A. Occhiuzzi , L. Pagano , A. Paiella , D. Paoletti , G. Pascual-Cisneros , V. Pavlidou , F. Piacentini , M. Pinchera , G. Pisano , G. Polenta , G. Puglisi , M. Remazeilles , A. Ritacco , A. Rizzieri , Y. Sakurai , D. Scott , M. Shiraishi , G. Signorelli , S. L. Stever , Y. Takase , H. Tanimura , A. Tartari , K. Tassis , L. Terenzi , M. Tristram , L. Vacher , B. van Tent , I. K. Wehus , G. Weymann-Despres , M. Zannoni , Y. Zhou

We describe a space-borne, multi-band, multi-beam polarimeter aiming at a precise and accurate measurement of the polarization of the Cosmic Microwave Background. The instrument is optimized to be compatible with the strict budget…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 P. de Bernardis , P. A. R. Ade , J. J. A. Baselmans , E. S. Battistelli , A. Benoit , M. Bersanelli , A. Bideaud , M. Calvo , F. J. Casas , G. Castellano , A. Catalano , I. Charles , I. Colantoni , F. Columbro , A. Coppolecchia , M. Crook , G. D'Alessandro , M. De Petris , J. Delabrouille , S. Doyle , C. Franceschet , A. Gomez , J. Goupy , S. Hanany , M. Hills , L. Lamagna , J. Macias-Perez , B. Maffei , S. Martin , E. Martinez-Gonzalez , S. Masi , D. McCarthy , A. Mennella , A. Monfardini , F. Noviello , A. Paiella , F. Piacentini , M. Piat , G. Pisano , G. Signorelli , C. Y. Tan , A. Tartari , N. Trappe , S. Triqueneaux , C. Tucker , G. Vermeulen , K. Young , M. Zannoni , A. Achúcarro , R. Allison , M. Ashdown , M. Ballardini , A. J. Banday , R. Banerji , J. Bartlett , N. Bartolo , S. Basak , A. Bonaldi , M. Bonato , J. Borrill , F. Bouchet , F. Boulanger , T. Brinckmann , M. Bucher , C. Burigana , A. Buzzelli , Z. Y. Cai , C. S. Carvalho , A. Challinor , J. Chluba , S. Clesse , G. De Gasperis , G. De Zotti , E. Di Valentino , J. M. Diego , J. Errard , S. Feeney , R. Fernandez-Cobos , F. Finelli , F. Forastieri , S. Galli , R. Génova-Santos , M. Gerbino , J. González-Nuevo , S. Hagstotz , J. Greenslade , W. Handley , C. Hernández-Monteagudo , C. Hervias-Caimapo , E. Hivon , K. Kiiveri , T. Kisner , T. Kitching , M. Kunz , H. Kurki-Suonio , A. Lasenby , M. Lattanzi , J. Lesgourgues , A. Lewis , M. Liguori , V. Lindholm , G. Luzzi , C. J. A. P. Martins , A. Melchiorri , J. B. Melin , D. Molinari , P. Natoli , M. Negrello , A. Notari , D. Paoletti , G. Patanchon , L. Polastri , G. Polenta , A. Pollo , V. Poulin , M. Quartin , M. Remazeilles , M. Roman , J. A. Rubiño-Martín , L. Salvati , M. Tomasi , D. Tramonte , T. Trombetti , J. Väliviita , R. Van de Weijgaert , B. van Tent , V. Vennin , P. Vielva , N. Vittorio

BICEP is a ground-based millimeter-wave bolometric array designed to target the primordial gravity wave signature on the polarization of the cosmic microwave background (CMB) at degree angular scales. Currently in its third year of…

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