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Background Imaging of Cosmic Extragalactic Polarization (BICEP) is a bolometric polarimeter designed to measure the inflationary B-mode polarization of the cosmic microwave background (CMB) at degree angular scales. During three seasons of…

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

We report on the design and performance of the BICEP2 instrument and on its three-year data set. BICEP2 was designed to measure the polarization of the cosmic microwave background (CMB) on angular scales of 1 to 5 degrees ($\ell$=40-200),…

We discuss the potential of a next generation space-borne Cosmic Microwave Background (CMB) experiment for studies of extragalactic sources. Our analysis has particular bearing on the definition of the future space project, CORE, that has…

Astrophysics of Galaxies · Physics 2019-08-13 G. De Zotti , J. Gonzalez-Nuevo , M. Lopez-Caniego , M. Negrello , J. Greenslade , C. Hernandez-Monteagudo , J. Delabrouille , Z. -Y. Cai , M. Bonato , A. Achucarro , P. Ade , R. Allison , M. Ashdown , M. Ballardini , A. J. Banday , R. Banerji , J. G. Bartlett , N. Bartolo , S. Basak , M. Bersanelli , M. Biesiada , M. Bilicki , A. Bonaldi , J. Borrill , F. Bouchet , F. Boulanger , T. Brinckmann , M. Bucher , C. Burigana , A. Buzzelli , M. Calvo , C. S. Carvalho , M. G. Castellano , A. Challinor , J. Chluba , D. L. Clements , S. Clesse , S. Colafrancesco , I. Colantoni , A. Coppolecchia , M. Crook , G. D'Alessandro , P. de Bernardis , G. de Gasperis , J. M. Diego , E. Di Valentino , J. Errard , S. M. Feeney , R. Fernandez-Cobos , S. Ferraro , F. Finelli , F. Forastieri , S. Galli , R. T. Genova-Santos , M. Gerbino , S. Grandis , S. Hagstotz , S. Hanany , W. Handley , C. Hervias-Caimapo , M. Hills , E. Hivon , K. Kiiveri , T. Kisner , T. Kitching , M. Kunz , H. Kurki-Suonio , G. Lagache , L. Lamagna , A. Lasenby , M. Lattanzi , A. Le Brun , J. Lesgourgues , A. Lewis , M. Liguori , V. Lindholm , G. Luzzi , B. Maffei , N. Mandolesi , E. Martinez-Gonzalez , C. J. A. P. Martins , S. Masi , M. Massardi , D. McCarthy , A. Melchiorri , J. -B. Melin , D. Molinari , A. Monfardini , P. Natoli , A. Notari , A. Paiella , D. Paoletti , R. B. Partridge , G. Patanchon , M. Piat , G. Pisano , L. Polastri , G. Polenta , A. Pollo , V. Poulin , M. Quartin , M. Remazeilles , M. Roman , G. Rossi , B. F. Roukema , J. -A. Rubino-Martin , L. Salvati , D. Scott , S. Serjeant , A. Tartari , L. Toffolatti , M. Tomasi , N. Trappe , S. Triqueneaux , T. Trombetti , M. Tucci , C. Tucker , J. Valiviita , R. van de Weygaert , B. Van Tent , V. Vennin , P. Vielva , N. Vittorio , K. Young

GroundBIRD is a ground-based experiment for the precise observation of the polarization of the cosmic microwave background (CMB). To achieve high sensitivity at large angular scale, we adopt three features in this experiment: fast rotation…

We present the design and characterization of a ground-based absolute polarization angle calibrator accurate to better than 0.1 degrees for use with polarization sensitive cosmic microwave background (CMB) experiments. The calibrator's…

Instrumentation and Methods for Astrophysics · Physics 2018-09-07 M. F. Navaroli , G. P. Teply , K. D. Crowley , J. P. Kaufman , N. B. Galitzki , K. S. Arnold , B. G. Keating

COMPASS is an on-axis 2.6 meter telescope coupled to a correlation polarimeter. The entire instrument was built specifically for CMB polarization studies. Careful attention was given to receiver and optics design, stability of the pointing…

The cosmic microwave background radiation (CMB) is now firmly established as a fundamental and essential probe of the geometry, constituents, and birth of the Universe. The CMB is a potent observable because it can be measured with…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 S. Hanany , M. Niemack , L. Page

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

Precise polarisation measurements of the cosmic microwave background (CMB) require accurate knowledge of the instrument orientation relative to the sky frame used to define the cosmological Stokes parameters. Suitable celestial calibration…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-09 M. H. Abitbol , J. C. Hill , B. R. Johnson

Precision measurements of the polarization of the cosmic microwave background (CMB) radiation, especially experiments seeking to detect the odd-parity "B-modes", have far-reaching implications for cosmology. To detect the B-modes generated…

Cosmology and Nongalactic Astrophysics · Physics 2012-12-27 Brian Keating , Meir Shimon , Amit Yadav

We report a measurement of the E-mode polarization power spectrum of the cosmic microwave background (CMB) using 150 GHz data taken from July 2014 to December 2016 with the POLARBEAR experiment. We reach an effective polarization map noise…

The balloon-borne LSPE mission is optimized to measure the linear polarization of the Cosmic Microwave Background at large angular scales. The Short Wavelength Instrument for the Polarization Explorer (SWIPE) is composed of 3 arrays of…

We describe an experiment to measure calibration sources, the polarization of Cosmic Microwave Background Radiation (CMBR) and the polarization induced on the CMBR from S-Z effects, using a polarimeter, MITOPol, that will be employed at the…

Cosmic Microwave Background experiments need to measure polarization properties of the incoming radiation very accurately to achieve their scientific goals. As a result of that, it is necessary to properly characterize these instruments.…

Instrumentation and Methods for Astrophysics · Physics 2022-07-18 Gabriele Coppi , Giulia Conenna , Sofia Savorgnano , Felipe Carrero , Rolando Dünner-Planella , Nicholas Galitzki , Federico Nati , Mario Zannoni

As the sensitivity of CMB telescopes increases, the need for precise calibration becomes critical. Started in 2022, the COSMOCal project aims to place an artificial polarized source in geostationary orbit, which will serve as a reference…