English
Related papers

Related papers: Extended Delta-map: a map-based foreground removal…

200 papers

Using the latest physical modeling and constrained by the most recent data, we develop a phenomenological parameterized model of the contributions to intensity and polarization maps at millimeter wavelengths from external galaxies and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Marius Millea , Olivier Doré , Jonathan Dudley , Gilbert Holder , Lloyd Knox , Laurie Shaw , Yong-Seon Song , Oliver Zahn

As Cosmic Microwave Background (CMB) measurements are becoming more ambitious, the issue of foreground contamination is becoming more pressing. This is especially true at the level of sensitivity, angular resolution and for the sky coverage…

Astrophysics · Physics 2009-10-31 François R. Bouchet , Richard Gispert

Extracting cosmological information from microwave sky observations requires accurate estimation of the underlying Cosmic Microwave Background (CMB) by removing foreground contamination, instrumental noise, and the effects of beam…

Instrumentation and Methods for Astrophysics · Physics 2026-05-12 Obasho M , Shambhavi Jaiswal , Santanu Das , Krishna Mohan Parattu

The detection of the magnetic type $B$-mode polarization is the main goal of future cosmic microwave background (CMB) experiments. In the standard model, the $B$-mode map is a strongly non-gaussian field due to the lensed component. Besides…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-20 Larissa Santos , Kai Wang , Wen Zhao

We present two novel methods for the estimation of the angular power spectrum of cosmic microwave background (CMB) anisotropies. We assume an absolute CMB experiment with arbitrary asymmetric beams and arbitrary sky coverage. The methods…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-25 Elina Keihänen , Kimmo Kiiveri , Hannu Kurki-Suonio , Martin Reinecke

Forthcoming cosmic microwave background experiments (CMB) will provide precise new tests of structure-formation theories. The geometry of the Universe may be determined robustly, and the classical cosmological parameters, such as the…

Astrophysics · Physics 2007-05-23 Marc Kamionkowski

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

We propose a new internal linear combination (ILC) method in the pixel space, applicable on large angular scales of the sky, to estimate a foreground minimized Cosmic Microwave Background (CMB) temperature anisotropy map by incorporating…

Cosmology and Nongalactic Astrophysics · Physics 2018-11-07 Vipin Sudevan , Rajib Saha

We present a constraint on the tensor-to-scalar ratio, $r$, derived from measurements of cosmic microwave background (CMB) polarization $B$-modes with "delensing," whereby the uncertainty on $r$ contributed by the sample variance of the…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-02 BICEP/Keck , SPTpol Collaborations , : , P. A. R. Ade , Z. Ahmed , M. Amiri , A. J. Anderson , J. E. Austermann , J. S. Avva , D. Barkats , R. Basu Thakur , J. A. Beall , A. N. Bender , B. A. Benson , F. Bianchini , C. A. Bischoff , L. E. Bleem , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. E. Carlstrom , C. L. Chang , J. R. Cheshire , H. C. Chiang , T-L. Chou , R. Citron , J. Connors , C. Corbett Moran , J. Cornelison , T. M. Crawford , A. T. Crites , M. Crumrine , A. Cukierman , T. de Haan , M. Dierickx , M. A. Dobbs , L. Duband , W. Everett , S. Fatigoni , J. P. Filippini , S. Fliescher , J. Gallicchio , E. M. George , T. St. Germaine , N. Goeckner-Wald , D. C. Goldfinger , J. Grayson , N. Gupta , G. Hall , M. Halpern , N. W. Halverson , S. Harrison , S. Henderson , J. W. Henning , S. R. Hildebrandt , G. C. Hilton , G. P. Holder , W. L. Holzapfel , J. D. Hrubes , N. Huang , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , L. Knox , J. M. Kovac , C. L. Kuo , K. Lau , A. T. Lee , E. M. Leitch , D. Li , A. Lowitz , A. Manzotti , J. J. McMahon , K. G. Megerian , S. S. Meyer , M. Millea , L. M. Mocanu , L. Moncelsi , J. Montgomery , A. Nadolski , T. Namikawa , T. Natoli , C. B. Netterfield , H. T. Nguyen , J. P. Nibarger , G. Noble , V. Novosad , R. O'Brient , R. W. Ogburn , Y. Omori , S. Padin , S. Palladino , S. Patil , T. Prouve , C. Pryke , B. Racine , C. L. Reichardt , C. D. Reintsema , S. Richter , J. E. Ruhl , B. R. Saliwanchik , K. K. Schaffer , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , C. Sievers , G. Smecher , A. Soliman , A. A. Stark , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umiltà , T. Veach , J. D. Vieira , A. G. Vieregg , A. Wandui , G. Wang , A. C. Weber , N. Whitehorn , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , H. Yang , V. Yefremenko , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang

We estimate Cosmic Microwave Background (CMB) polarisation power spectra, and temperature-polarisation cross-spectra, from the 9-year data of the Wilkinson Microwave Anisotropy Probe (WMAP). Foreground cleaning is implemented using minimum…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-02 Soumen Basak , Jacques Delabrouille

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

We use the Wilkinson Microwave Anisotropy Probe 7-year data (WMAP7) to further probe point source detection technique in the sky maps of the cosmic microwave background (CMB) radiation. The method by Tegmark et al. for foreground reduced…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-30 H. G. Khachatryan , G. Nurbaeva , D. Pfenniger , G. Meylan

We examine the degree to which observations of large-scale cosmic microwave background (CMB) polarization can shed light on the puzzling large-scale power modulation in maps of CMB anisotropy. We consider a phenomenological model in which…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-23 Emory F. Bunn , Qingyang Xue , Haoxuan Zheng

Our ability to extract the maximal amount of information from future observations at gigahertz frequencies depends on our ability to separate the underlying cosmic microwave background (CMB) from galactic and extragalactic foregrounds. We…

Astrophysics · Physics 2007-05-23 J. Jewell , C. R. Lawrence , S. Levin

We study the gravitational lensing effect on the Cosmic Microwave Background (CMB) anisotropies performing a ray-tracing of the primordial CMB photons through intervening large-scale structures (LSS) distribution predicted by N-Body…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-09 Matteo Calabrese , Carmelita Carbone , Giulio Fabbian , Marco Baldi , Carlo Baccigalupi

We develop a Feynman diagram approach to calculating correlations of the Cosmic Microwave Background (CMB) in the presence of distortions. As one application, we focus on CMB distortions due to gravitational lensing by Large Scale Structure…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Elizabeth E. Jenkins , Aneesh V. Manohar , Wouter J. Waalewijn , Amit P. S. Yadav

We discuss the possible impact of astrophysical foregrounds on three recent exciting results of Cosmic Microwave Background (CMB) experiments: the WMAP measurements of the temperature-polarization (TE) correlation power spectrum, the…

Astrophysics · Physics 2007-05-23 G. De Zotti , C. Burigana , C. Baccigalupi , R. Ricci

A preferred method to detect the curl-component, or B-mode, signature of inflationary gravitational waves (IGWs) in the cosmic microwave background (CMB) polarization, in the absence of foregrounds and lensing, is a prolonged integration…

Instrumentation and Methods for Astrophysics · Physics 2015-08-27 Ely D. Kovetz , Marc Kamionkowski