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We develop a new method for reconstructing cluster mass profiles and large-scale structure from the cosmic microwave background (CMB). By analyzing the likelihood of CMB lensing, we analytically prove that standard quadratic estimators for…

Astrophysics · Physics 2008-11-26 Jaiyul Yoo , Matias Zaldarriaga

Abreg: We investigate the impact of polarized foreground emission on the performances of future CMB experiments in measuring the tensor-to-scalar ratio r. We design a component separation pipeline, based on the Smica method, aimed at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Marc Betoule , E. Pierpaoli , J. Delabrouille , M. Le Jeune , Jean-François Cardoso

We present a study on using delensing to enhance cosmic birefringence measurements based on full-sky, map-based simulations. In our analysis, we neglect foreground contamination and instrumental systematics to isolate the intrinsic impact…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-08 Anto Idicherian Lonappan

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

One of the main obstacles for extracting the Cosmic Microwave Background (CMB) from mm/submm observations is the pollution from the main Galactic components: synchrotron, free-free and thermal dust emission. The feasibility of using simple…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-20 H. U. Nørgaard-Nielsen

Future low-noise cosmic microwave background (CMB) lensing measurements from e.g., CMB-S4 will be polarization dominated, rather than temperature dominated. In this new regime, statistically optimal lensing reconstructions outperform the…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-20 Frank J. Qu , Marius Millea , Emmanuel Schaan

Upcoming stage 4 surveys, such as the Simons Observatory, LSST, and Euclid, are poised to measure weak gravitational lensing of the Cosmic Microwave Background (CMB) and galaxies with unprecedented precision. While the power spectrum is the…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-07 Jonas Frugte , P. Daniel Meerburg

In inflationary models, gravitational waves are produced and generate B-type polarization in the CMB. Since B polarization is only generated by gravity waves it does not suffer from the cosmic variance. A perfect decomposition of the CMB…

Astrophysics · Physics 2009-11-13 Mihail Amarie , Christopher Hirata , Uros Seljak

We propose a novel bias-free method for reconstructing the power spectrum of the weak lensing deflection field from cosmic microwave background (CMB) observations. The proposed method is in contrast to the standard method of CMB lensing…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-30 Blake D. Sherwin , Sudeep Das

We report a 4.8$\sigma$ measurement of the cross-correlation signal between the cosmic microwave background (CMB) lensing convergence reconstructed from measurements of the CMB polarization made by the POLARBEAR experiment and the…

We describe the objectives, design and predicted performance of Clover, which is a ground-based experiment to measure the faint ``B-mode'' polarisation pattern in the cosmic microwave background (CMB). To achieve this goal, clover will make…

The cosmic microwave background (CMB) bispectrum is a well-known probe of the non-Gaussianity of primordial perturbations. Just as the intervening large-scale structure modifies the CMB angular power spectrum through weak gravitational…

Astrophysics · Physics 2008-11-26 Asantha Cooray , Devdeep Sarkar , Paolo Serra

We consider the weak lensing effect induced by linear cosmological perturbations on the cosmic microwave background (CMB) polarization anisotropies. We find that the amplitude of the lensing peak in the BB mode power spectrum is a faithful…

Astrophysics · Physics 2009-11-13 Viviana Acquaviva , Carlo Baccigalupi

We use a temperature map of the cosmic microwave background (CMB) obtained using the South Pole Telescope at 150 GHz to construct a map of the gravitational convergence to z ~ 1100, revealing the fluctuations in the projected mass density.…

The lensing convergence measurable with future CMB surveys like CMB-S4 will be highly correlated with the clustering observed by deep photometric large scale structure (LSS) surveys such as the LSST, with cross-correlation coefficient as…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-06 Marcel Schmittfull , Uros Seljak

We demonstrate that, for the baseline design of the CORE satellite mission, the polarized foregrounds can be controlled at the level required to allow the detection of the primordial cosmic microwave background (CMB) $B$-mode polarization…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-13 M. Remazeilles , A. J. Banday , C. Baccigalupi , S. Basak , A. Bonaldi , G. De Zotti , J. Delabrouille , C. Dickinson , H. K. Eriksen , J. Errard , R. Fernandez-Cobos , U. Fuskeland , C. Hervías-Caimapo , M. López-Caniego , E. Martinez-González , M. Roman , P. Vielva , I. Wehus , A. Achucarro , P. Ade , R. Allison , M. Ashdown , M. Ballardini , R. Banerji , N. Bartolo , J. Bartlett , D. Baumann , M. Bersanelli , M. Bonato , J. Borrill , F. Bouchet , F. Boulanger , T. Brinckmann , M. Bucher , C. Burigana , A. Buzzelli , Z. -Y. Cai , M. Calvo , C. -S. Carvalho , G. Castellano , A. Challinor , J. Chluba , S. Clesse , I. Colantoni , A. Coppolecchia , M. Crook , G. D'Alessandro , P. de Bernardis , G. de Gasperis , J. -M. Diego , E. Di Valentino , S. Feeney , S. Ferraro , F. Finelli , F. Forastieri , S. Galli , R. Genova-Santos , M. Gerbino , J. González-Nuevo , S. Grandis , J. Greenslade , S. Hagstotz , S. Hanany , W. Handley , C. Hernandez-Monteagudo , M. Hills , E. Hivon , K. Kiiveri , T. Kisner , T. Kitching , M. Kunz , H. Kurki-Suonio , L. Lamagna , A. Lasenby , M. Lattanzi , J. Lesgourgues , A. Lewis , M. Liguori , V. Lindholm , G. Luzzi , B. Maffei , C. J. A. P. Martins , S. Masi , D. McCarthy , J. -B. Melin , A. Melchiorri , D. Molinari , A. Monfardini , P. Natoli , M. Negrello , A. Notari , A. Paiella , D. Paoletti , G. Patanchon , M. Piat , G. Pisano , L. Polastri , G. Polenta , A. Pollo , V. Poulin , M. Quartin , J. -A. Rubino-Martin , L. Salvati , A. Tartari , M. Tomasi , D. Tramonte , N. Trappe , T. Trombetti , C. Tucker , J. Valiviita , R. Van de Weijgaert , B. van Tent , V. Vennin , N. Vittorio , K. Young , M. Zannoni

We reconsider the pixel-based, "template" polarized foreground removal method within the context of a next-generation, low-noise, low-resolution (0.5 degree FWHM) space-borne experiment measuring the cosmological B-mode polarization signal…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Nobuhiko Katayama , Eiichiro Komatsu

Delensing--the process of mitigating the lensing-induced B-mode contamination in cosmic microwave background (CMB) observations--will be a pivotal challenge for next-generation CMB experiments seeking to detect primordial gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-27 Wen-Zheng Chen , Yang Liu , Yi-Ming Wang , Hong Li

Over the past decade, the gravitational lensing of the Cosmic Microwave Background (CMB) has become a powerful tool for probing the matter distribution in the Universe. The standard technique used to reconstruct the CMB lensing signal…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-02 Boryana Hadzhiyska , Blake D. Sherwin , Mathew Madhavacheril , Simone Ferraro