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The Simons Observatory (SO) will perform ground-based observations of the cosmic microwave background (CMB) with several small and large aperture telescopes, each outfitted with thousands to tens of thousands of superconducting aluminum…

In this work we present a method to extract the signal induced by the integrated Sachs-Wolfe (ISW) effect in the cosmic microwave background (CMB). It makes use of the Linear Covariance-Based filter introduced by Barreiro et al., and…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-09 L. Bonavera , R. B. Barreiro , A. Marcos-Caballero , P. Vielva

We report an improved measurement of the cosmic microwave background (CMB) $B$-mode polarization power spectrum with the POLARBEAR experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to…

The Princeton IQU Experiment (PIQUE) and the Cosmic Anisotropy Polarization MAPper (CAPMAP) are experiments designed to measure the polarization of the Cosmic Microwave Background (CMB) on sub-degree scales in an area within 1 degree of the…

Gravitational lensing of the microwave background by the intervening dark matter mainly arises from large-angle fluctuations in the projected gravitational potential and hence offers a unique opportunity to study the physics of the dark…

Astrophysics · Physics 2011-05-12 Takemi Okamoto , Wayne Hu

Extragalactic foregrounds are known to constitute a limiting systematic in temperature-based CMB lensing with AdvACT, SPT-3G, Simons Observatory and CMB S4. Furthermore, since these foregrounds are emitted at cosmological distances, they…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-09 Nishant Mishra , Emmanuel Schaan

The Simons Observatory is a ground-based telescope array located at an elevation of 5200 meters, in the Atacama Desert in Chile, designed to measure the temperature and polarization of the cosmic microwave background. It comprises four…

The detection of the primordial $B$-mode spectrum of the polarized cosmic microwave background (CMB) signal may provide a probe of inflation. However, observation of such a faint signal requires excellent control of systematic errors.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Ata Karakci , Le Zhang , P. M. Sutter , Emory F. Bunn , Andrei Korotkov , Peter Timbie , Gregory S. Tucker , Benjamin D. Wandelt

A major problem in Cosmic Microwave Background (CMB) anisotropy mapping, especially in a total-power mode, is the presence of low-frequency noise in the data streams. If unproperly processed, such low-frequency noise leads to striping in…

Astrophysics · Physics 2009-10-31 B. Revenu , A. Kim , R. Ansari , F. Couchot , J. Delabrouille , J. Kaplan

Present cosmic microwave background (CMB) observations have significantly advanced our understanding of the universe's origin, especially with primordial gravitational waves (PGWs). Currently, ground-based CMB telescopes are mainly located…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-02 Dongdong Zhang , Bo Wang , Jia-Rui Li , Yi-Fu Cai , Chang Feng

The study of the linear and circular polarization in AGN allows one to gain detailed information about the properties of the magnetic fields in these objects. However, especially the observation of circular polarization (CP) with…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 E. Cenacchi , A. Kraus , A. Orfei , K. -H. Mack

We use South Pole Telescope data from 2008 and 2009 to detect the non-Gaussian signature in the cosmic microwave background (CMB) produced by gravitational lensing and to measure the power spectrum of the projected gravitational potential.…

Cosmological Birefringence (CB), a rotation of the polarization plane of radiation coming to us from distant astrophysical sources, may reveal parity violation in either the electromagnetic or gravitational sectors of the fundamental…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Amit P. S. Yadav , Meir Shimon , Brian G. Keating

We consider the possible detection of parity violation at the linear level in gravity using polarized anisotropies of the cosmic microwave background. Since such a parity violation would lead to non-zero TB and EB correlations, this makes…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 A. Ferte , J. Grain

We describe the Cosmic Microwave Background (CMB) polarization experiment called Polarbear. This experiment will use the dedicated Huan Tran Telescope equipped with a powerful 1,200-bolometer array receiver to map the CMB polarization with…

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

Constraining the Galactic foregrounds with multi-frequency Cosmic Microwave Background (CMB) observations is an essential step towards ultimately reaching the sensitivity to measure primordial gravitational waves (PGWs), the sign of…

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