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Related papers: Full-sky maps for gravitational lensing of the CMB

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This Science White Paper, prepared in response to the ESA Voyage 2050 call for long-term mission planning, aims to describe the various science possibilities that can be realized with an L-class space observatory that is dedicated to the…

A long-standing problem in astrophysics is to measure the mass associated with galaxies. Gravitational lensing provides one of the cleanest ways to make this measurement. To date, the most powerful lensing probes of galactic mass have been…

Astrophysics · Physics 2009-09-29 Scott Dodelson , Glenn D. Starkman

Power spectra and cross-correlation measurements from the weak gravitational lensing of the cosmic microwave background (CMB) and the cosmic shearing of faint galaxies images will help shed light on quantities hidden from the CMB…

Astrophysics · Physics 2009-07-09 Wayne Hu

We use cosmic microwave background (CMB) temperature maps from the 500 deg$^{2}$ SPTpol survey to measure the stacked lensing convergence of galaxy clusters from the Dark Energy Survey (DES) Year-3 redMaPPer (RM) cluster catalog. The…

Cosmology and Nongalactic Astrophysics · Physics 2019-02-21 S. Raghunathan , S. Patil , E. Baxter , B. A. Benson , L. E. Bleem , T. L. Chou , T. M. Crawford , G. P. Holder , T. McClintock , C. L. Reichardt , E. Rozo , T. N. Varga , T. M. C. Abbott , P. A. R. Ade , S. Allam , A. J. Anderson , J. Annis , J. E. Austermann , S. Avila , J. A. Beall , K. Bechtol , A. N. Bender , G. Bernstein , E. Bertin , F. Bianchini , L. Bleem , D. Brooks , D. L. Burke , J. E. Carlstrom , J. Carretero , C. L. Chang , H. C. Chiang , H-M. Cho , R. Citron , A. T. Crites , C. E. Cunha , L. N. da Costa , C. Davis , S. Desai , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , P. Doel , T. F. Eifler , W. Everett , A. E. Evrard , B. Flaugher , P. Fosalba , J. Frieman , J. Gallicchio , J. García-Bellido , E. Gaztanaga , E. M. George , A. Gilbert , R. A. Gruendl , D. Gruen , J. Gschwend , N. Gupta , G. Gutierrez , T. de Haan , N. W. Halverson , N. Harrington , W. G. Hartley , J. W. Henning , G. C. Hilton , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , Z. Hou , B. Hoyle , J. D. Hrubes , N. Huang , J. Hubmayr , K. D. Irwin , D. J. James , T. Jeltema , A. G. Kim , M. Carrasco Kind , L. Knox , A. Kovacs , K. Kuehn , N. Kuropatkin , A. T. Lee , M. Lima , T. S. Li , M. A. G. Maia , J. L. Marshall , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , C. J. Miller , R. Miquel , L. Mocanu , J. Montgomery , A. Nadolski , T. Natoli , J. P. Nibarger , V. Novosad , S. Padin , A. A. Plazas , C. Pryke , D. Rapetti , A. K. Romer , A. Carnero Rosell , J. E. Ruhl , B. R. Saliwanchik , E. Sanchez , J. T. Sayre , V. Scarpine , K. K. Schaffer , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , G. Smecher , R. C. Smith , M. Soares-Santos , F. Sobreira , A. A. Stark , K. T. Story , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. Tucker , K. Vanderlinde , J. De Vicente , J. D. Vieira , G. Wang , N. Whitehorn , W. L. K. Wu , Y. Zhang

The B-mode of polarization of the CMB is a uniquely powerful probe of gravitational waves produced in the very early Universe. But searches for primordial B-mode anisotropies must contend with gravitational lensing, which induces late-time…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-27 Shengzhu Wang , Antón Baleato Lizancos , José Luis Bernal

Gravitational lensing by large scale structure introduces non-Gaussianity into the Cosmic Microwave Background and imprints a new observable, which can be used as a cosmological probe. We apply a four-point estimator to the Wilkinson…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-06 Chang Feng , Brian Keating , Hans P. Paar , Oliver Zahn

We adapt a non-linear filter proposed by Hu 2001 for detecting lensing of the CMB by large-scale structures to recover surface-density profiles of galaxy clusters from their localised, weak gravitational lensing effect on CMB fields.…

Astrophysics · Physics 2009-11-10 M. Maturi , M. Bartelmann , M. Meneghetti , L. Moscardini

We investigate the tolerance for systematic errors in lensing analysis applied to a patchwork map of Cosmic Microwave Background polarization. We focus on the properties of the individual polarization maps that comprise the patchwork and…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-27 Ryo Nagata , Toshiya Namikawa

The Cosmic Microwave Background (CMB) radiation lensing is a promising tool to study the physics of early universe. In this work we probe the imprints of deviations from isotropy and scale invariance of primordial curvature perturbation…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-01 Farbod Hassani , Shant Baghram , Hassan Firouzjahi

[Abridged]: A detection or nondetection of primordial non-Gaussianity by using the CMB data is crucial not only to discriminate inflationary models but also to test alternative scenarios. Non-Gaussianity offers, therefore, a powerful probe…

Cosmology and Nongalactic Astrophysics · Physics 2010-04-14 A. Bernui , M. J. Reboucas

We compute the reduced cosmic shear up to second order in the gravitational potential without relying on the small angle or thin-lens approximation. This is obtained by solving the Sachs equation which describes the deformation of the…

Cosmology and Nongalactic Astrophysics · Physics 2010-04-14 Francis Bernardeau , Camille Bonvin , Filippo Vernizzi

Detection of magnetic-type ($B$-type) polarization in the Cosmic Microwave Background (CMB) radiation plays a crucial role in probing the relic gravitational wave (RGW) background. In this paper, we propose a new method to deconstruct a…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Wen Zhao , Deepak Baskaran

Weak lensing of CMB anisotropies and polarization for the power spectra and higher order statistics can be handled directly in harmonic-space without recourse to real-space correlation functions. For the power spectra, this approach not…

Astrophysics · Physics 2009-10-31 Wayne Hu

While the probability density function (PDF) of the cosmic microwave background (CMB) convergence field approximately follows a Gaussian distribution, primordial non-Gaussianities and small contributions from structures at low redshifts…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-16 Zhuoqi Zhang , Yuuki Omori , Chihway Chang

In recent years cross correlation of lensing of the Cosmic Microwave Background (CMB) with other large scale structure (LSS) tracers has been used as a method to detect CMB lensing. Current experiments are also becoming sensitive enough to…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-26 Ruth Pearson , Oliver Zahn

We investigate what the lensing information contained in high resolution, low noise CMB temperature maps can teach us about cluster mass profiles. We create lensing fields and Sunyaev-Zel'dovich effect maps from N-body simulations and apply…

Astrophysics · Physics 2009-08-18 Chris Vale , Alexandre Amblard , Martin White

We estimate the impact of weak lensing by strongly nonlinear cosmological structures on the cosmic microwave background. Accurate calculation of large $\ell$ multipoles requires N-body simulations and ray-tracing schemes with both high…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 M. J. Fullana , J. V. Arnau , R. J. Thacker , H. M. P. Couchman , D. Sáez

We develop computationally rapid methods to compute the window function for a cosmic microwave background anisotropy experiment with a non-circular beam which scans over large angles on the sky. To concretely illustrate these methods we…

Astrophysics · Physics 2009-11-06 Tarun Souradeep , Bharat Ratra

We study accuracy, robustness and self-consistency of pixel-domain simulations of the gravitational lensing effect on the primordial CMB anisotropies due to the large-scale structure of the Universe. In particular, we investigate dependence…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-09 Giulio Fabbian , Radek Stompor

Gravitational lensing has become one of the most powerful tools available for investigating the 'dark side' of the universe. Cosmological strong gravitational lensing, in particular, probes the properties of the dense cores of dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-30 Nan Li , Michael D. Gladders , Esteban M. Rangel , Michael K. Florian , Lindsey E. Bleem , Katrin Heitmann , Salman Habib , Patricia Fasel