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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 polarization of cosmic microwave background (CMB) can be used to constrain cosmological birefringence, the rotation of the linear polarization of CMB photons potentially induced by parity violating physics beyond the standard model.…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-08 A. Gruppuso , M. Gerbino , P. Natoli , L. Pagano , N. Mandolesi , D. Molinari

BICEP3, the latest telescope in the BICEP/Keck program, started science observations in March 2016. It is a 550mm aperture refractive telescope observing the polarization of the cosmic microwave background at 95 GHz. We show the focal plane…

We describe the design and performance of polarization selective antenna-coupled TES arrays that will be used in several upcoming Cosmic Microwave Background (CMB) experiments: SPIDER, BICEP-2/SPUD. The fully lithographic polarimeter arrays…

The statistical expectation values of the temperature fluctuations and polarization of cosmic microwave background (CMB) are assumed to be preserved under rotations of the sky. We investigate the statistical isotropy (SI) of the CMB maps…

Astrophysics · Physics 2009-11-11 Tarun Souradeep , Amir Hajian , Soumen Basak

We describe the QUaD experiment, a millimeter-wavelength polarimeter designed to observe the Cosmic Microwave Background (CMB) from a site at the South Pole. The experiment comprises a 2.64 m Cassegrain telescope equipped with a…

The Q&U Bolometric Interferometer for Cosmology (QUBIC) is the first bolometric interferometer designed to measure the primordial B-mode polarization of the Cosmic Microwave Background (CMB). Bolometric interferometry is a novel technique…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-07 A. Mennella , P. Ade , A. Almela , G. Amico , L. H. Arnaldi , J. Aumont , S. Banfi , E. S. Battistelli , B. Bélier , L. Bergé , J. -Ph. Bernard , P. de Bernardis , M. Bersanelli , J. Bonaparte , J. D. Bonilla , E. Bunn , D. Buzi , F. Cacciotti , D. Camilieri , F. Cavaliere , P. Chanial , C. Chapron , L. Colombo , F. Columbro , A. Coppolecchia , M. B. Costanza , G. D'Alessandro , G. De Gasperis , M. De Leo , M. De Petris , N. Del Castillo , S. Dheilly , A. Etchegoyen , S. Ferazzoli , L. P. Ferreyro , C. Franceschet , M. M. Gamboa Lerena , K. Ganga , B. García , M. E. García Redondo , D. Gayer , J. M. Geria , M. Gervasi , M. Giard , V. Gilles , M. Gómez Berisso , M. Gonzalez , M. Gradziel , L. Grandsire , J. -Ch. Hamilton , M. R. Hampel , G. Isopi , J. Kaplan , L. Lamagna , F. Lazarte , S. Loucatos , B. Maffei , A. Mancilla , S. Mandelli , E. Manzan , E. Marchitelli , S. Marnieros , W. Marty , S. Masi , A. May , J. Maya , M. McCulloch , L. Mele , D. Melo , N. Mirón-Granese , L. Montier , L. Mousset , N. Müller , F. Nati , C. O'Sullivan , A. Paiella , F. Pajot , S. Paradiso , E. Pascale , A. Passerini , A. Pelosi , M. Perciballi , F. Pezzotta , F. Piacentini , M. Piat , L. Piccirillo , G. Pisano , M. Platino , G. Polenta , D. Prêle , D. Rambaud , G. Ramos , E. Rasztocky , M. Régnier , C. Reyes , F. Rodríguez , C. A. Rodríguez , G. E. Romero , J. M. Salum , A. Schillaci , C. Scóccola , G. Stankowiak , A. Tartari , J. -P. Thermeau , P. Timbie , M. Tomasi , S. Torchinsky , G. Tucker , C. Tucker , L. Vacher , F. Voisin , M. Wright , M. Zannoni , A. Zullo

We discuss instrumental and analytic methods that have been developed for the first generation of bolometric cosmic microwave background (CMB) polarimeters. The design, characterization, and analysis of data obtained using Polarization…

The Atacama Cosmology Telescope Polarimeter (ACTPol) is a polarization sensitive upgrade to the Atacama Cosmology Telescope. Located at an elevation of 5190 m, ACTPol measures the Cosmic Microwave Background (CMB) temperature and…

The detection of B-modes in the Cosmic Microwave Background (CMB) polarization by the BICEP2 experiment, if interpreted as evidence for a primordial gravitational wave background, has enormous ramifications for cosmology and physics. It is…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-29 Nora Elisa Chisari , Cora Dvorkin , Fabian Schmidt

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

The DASI discovery of CMB polarization, confirmed by WMAP, has opened a new chapter in cosmology. Most of the useful information about inflationary gravitational waves and reionization is on large angular scales where Galactic foreground…

Astrophysics · Physics 2007-05-23 Angelica de Oliveira-Costa

Isotropy-violation statistics can highlight polarized galactic foregrounds that contaminate primordial $B$-modes in the Cosmic Microwave Background (CMB). We propose a particular isotropy-violation test and apply it to polarized Planck 353…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-23 Aditya Rotti , Kevin Huffenberger

This paper discusses the Cosmic Background (CB) dipoles observations in the framework of the Planck mission. Dipoles observations can be used in three ways: (i) It gives a measurement of the peculiar velocity of our Galaxy which is an…

Astrophysics · Physics 2009-11-07 M. Piat , G. Lagache , J. P. Bernard , M. Giard , J. L. Puget

We discuss the polarization signature of primordial gravitational waves imprinted in cosmic microwave background (CMB) anisotropies. The high-energy physics motivated by superstring theory or M-theory generically yield parity violating…

Astrophysics · Physics 2009-06-23 Shun Saito , Kiyotomo Ichiki , Atsushi Taruya

The curl-modes of Cosmic Microwave Background (CMB) polarization probe horizon-scale primordial gravitational waves related to inflation. A significant source of confusion is expected from a lensing conversion of polarization related to…

Astrophysics · Physics 2009-11-10 Asantha Cooray

The Q&U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized for the measurement of the B-mode polarization of the Cosmic Microwave Back-ground (CMB), which is one of the major challenges of observational…

Instrumentation and Methods for Astrophysics · Physics 2022-10-10 L. Mousset , P. Ade , A. Almela , G. Amico , L. H. Arnaldi , J. Aumont , S. Banfi , E. S. Battistelli , B. Bélier , L. Bergé , J. -Ph. Bernard , P. de Bernardis , M. Bersanelli , J. Bonaparte , J. D. Bonilla , E. Bunn , D. Buzi , D. Camilieri , F. Cavaliere , P. Chanial , C. Chapron , S. Colombo , F. Columbro , A. Coppolecchia , B. Costanza , G. DÁlessandro , G. De Gasperis , M. De Leo , M. De Petris , N. Del Castillo , S. Dheilly , A. Etchegoyen , M. Famá , L. P. Ferreyro , C. Franceschet , M. M. Gamboa Lerena , K. M. Ganga , B. García , M. E. García Redondo , D. Gayer , J. M. Geria , M. Gervasi , M. Giard , V. Gilles , M. Gómez Berisso , M. González , M. Gradziel , L. Grandsire , J. -Ch. Hamilton , M. R. Hampel , G. Isopi , J. Kaplan , C. Kristukat , L. Lamagna , F. Lazarte , S. Loucatos , A. Mancilla , D. Mandelli , E. Manzan , S. Marnieros , W. Marty , S. Masi , A. May , J. Maya , M. McCulloch , L. Mele , D. Melo , A. Mennella , N. Mirón-Granese , L. Montier , N. Müller , J. D. Murphy , F. Nati , C. OŚullivan , A. Paiella , F. Pajot , S. Paradiso , A. Passerini , A. Pelosi , M. Perciballi , F. Pezzotta , F. Piacentini , M. Piat , L. Piccirillo , G. Pisano , M. Platino , G. Polenta , D. Prêle , D. Rambaud , E. Rasztocky , M. Régnier , C. Reyes , F. Rodríguez , C. A. Rodríguez , G. E. Romero , J. M. Salum , A. Schillaci , C. G. Scóccola , G. Stankowiak , A. D. Supanitsky , A. Tartari , J. -P. Thermeau , P. Timbie , S. A. Torchinsky , G. Tucker , C. Tucker , L. Vacher , F. Voisin , M. Wright , M. Zannoni , A. Zullo