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I present to this conference our latest measurements of the integrated Sachs-Wolfe (ISW) effect. After a brief review of the reasons for which this effect arises and of the technique to detect it by cross-correlating the cosmic microwave…

天体物理学 · 物理学 2008-05-26 Tommaso Giannantonio

We measure the cross-correlation between redMaGiC galaxies selected from the Dark Energy Survey (DES) Year-1 data and gravitational lensing of the cosmic microwave background (CMB) reconstructed from South Pole Telescope (SPT) and Planck…

宇宙学与河外天体物理 · 物理学 2019-08-07 Y. Omori , T. Giannantonio , A. Porredon , E. Baxter , C. Chang , M. Crocce , P. Fosalba , A. Alarcon , N. Banik , J. Blazek , L. E. Bleem , S. L. Bridle , R. Cawthon , A. Choi , R. Chown , T. Crawford , S. Dodelson , A. Drlica-Wagner , T. F. Eifler , J. Elvin-Poole , O. Friedrich , D. Gruen , G. P. Holder , D. Huterer , B. Jain , M. Jarvis , D. Kirk , N. Kokron , E. Krause , N. MacCrann , J. Muir , J. Prat , C. L. Reichardt , A. J. Ross , E. Rozo , E. S. Rykoff , C. Sánchez , L. F. Secco , G. Simard , R. H. Wechsler , J. Zuntz , T. M. C. Abbott , F. B. Abdalla , S. Allam , S. Avila , K. Aylor , B. A. Benson , G. M. Bernstein , E. Bertin , F. Bianchini , D. Brooks , E. Buckley-Geer , D. L. Burke , J. E. Carlstrom , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. L. Chang , H-M. Cho , A. T. Crites , C. E. Cunha , L. N. da Costa , T. de Haan , C. Davis , J. De Vicente , S. Desai , H. T. Diehl , J. P. Dietrich , M. A. Dobbs , W. B. Everett , P. Doel , J. Estrada , B. Flaugher , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , E. M. George , R. A. Gruendl , J. Gschwend , G. Gutierrez , N. W. Halverson , N. L. Harrington , W. G. Hartley , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , Z. Hou , B. Hoyle , J. D. Hrubes , D. J. James , T. Jeltema , K. Kuehn , N. Kuropatkin , A. T. Lee , E. M. Leitch , M. Lima , D. Luong-Van , A. Manzotti , D. P. Marrone , J. L. Marshall , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , C. J. Miller , R. Miquel , L. M. Mocanu , J. J. Mohr , T. Natoli , S. Padin , A. A. Plazas , C. Pryke , A. K. Romer , A. Roodman , J. E. Ruhl , E. Sanchez , V. Scarpine , K. K. Schaffer , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , E. Shirokoff , M. Smith , M. Soares-Santos , F. Sobreira , Z. Staniszewski , A. A. Stark , K. T. Story , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , M. A. Troxel , K. Vanderlinde , J. D. Vieira , A. R. Walker , W. L. K. Wu , O. Zahn

We cross correlate the gravitational lensing map extracted from cosmic microwave background measurements by the Wilkinson Microwave Anisotropy Probe (WMAP) with the radio galaxy distribution from the NRAO VLA Sky Survey (NVSS) by using a…

宇宙学与河外天体物理 · 物理学 2012-09-24 Chang Feng , Grigor Aslanyan , Aneesh V. Manohar , Brian Keating , Hans P. Paar , Oliver Zahn

The integrated Sachs-Wolfe (ISW) effect is caused by the decay of cosmological gravitational potential, and is therefore a unique probe of dark energy. However, its robust detection is still problematic. Various tensions between different…

宇宙学与河外天体物理 · 物理学 2020-10-28 Fuyu Dong , Yu Yu , Jun Zhang , Xiaohu Yang , Pengjie Zhang

Cross-correlations of galaxy positions and galaxy shears with maps of gravitational lensing of the cosmic microwave background (CMB) are sensitive to the distribution of large-scale structure in the Universe. Such cross-correlations are…

宇宙学与河外天体物理 · 物理学 2023-02-15 C. Chang , Y. Omori , E. J. Baxter , C. Doux , A. Choi , S. Pandey , A. Alarcon , O. Alves , A. Amon , F. Andrade-Oliveira , K. Bechtol , M. R. Becker , G. M. Bernstein , F. Bianchini , J. Blazek , L. E. Bleem , H. Camacho , A. Campos , A. Carnero Rosell , M. Carrasco Kind , R. Cawthon , R. Chen , J. Cordero , T. M. Crawford , M. Crocce , C. Davis , J. DeRose , S. Dodelson , A. Drlica-Wagner , K. Eckert , T. F. Eifler , F. Elsner , J. Elvin-Poole , S. Everett , X. Fang , A. Ferté , P. Fosalba , O. Friedrich , M. Gatti , G. Giannini , D. Gruen , R. A. Gruendl , I. Harrison , K. Herner , H. Huang , E. M. Huff , D. Huterer , M. Jarvis , A. Kovacs , E. Krause , N. Kuropatkin , P. -F. Leget , P. Lemos , A. R. Liddle , N. MacCrann , J. McCullough , J. Muir , J. Myles , A. Navarro-Alsina , Y. Park , A. Porredon , J. Prat , M. Raveri , R. P. Rollins , A. Roodman , R. Rosenfeld , A. J. Ross , E. S. Rykoff , C. Sánchez , J. Sanchez , L. F. Secco , I. Sevilla-Noarbe , E. Sheldon , T. Shin , M. A. Troxel , I. Tutusaus , T. N. Varga , N. Weaverdyck , R. H. Wechsler , W. L. K. Wu , B. Yanny , B. Yin , Y. Zhang , J. Zuntz , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , D. Bacon , B. A. Benson , E. Bertin , S. Bocquet , D. Brooks , D. L. Burke , J. E. Carlstrom , J. Carretero , C. L. Chang , R. Chown , M. Costanzi , L. N. da Costa , A. T. Crites , M. E. S. Pereira , T. de Haan , J. De Vicente , S. Desai , H. T. Diehl , M. A. Dobbs , P. Doel , W. Everett , I. Ferrero , B. Flaugher , D. Friedel , J. Frieman , J. García-Bellido , E. Gaztanaga , E. M. George , T. Giannantonio , N. W. Halverson , S. R. Hinton , G. P. Holder , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , J. D. Hrubes , D. J. James , L. Knox , K. Kuehn , O. Lahav , A. T. Lee , M. Lima , D. Luong-Van , M. March , J. J. McMahon , P. Melchior , F. Menanteau , S. S. Meyer , R. Miquel , L. Mocanu , J. J. Mohr , R. Morgan , T. Natoli , S. Padin , A. Palmese , F. Paz-Chinchón , A. Pieres , A. A. Plazas Malagón , C. Pryke , C. L. Reichardt , M. Rodríguez-Monroy , A. K. Romer , J. E. Ruhl , E. Sanchez , K. K. Schaffer , M. Schubnell , S. Serrano , E. Shirokoff , M. Smith , Z. Staniszewski , A. A. Stark , E. Suchyta , G. Tarle , D. Thomas , C. To , J. D. Vieira , J. Weller , R. Williamson

We describe a method using the integrated Sachs-Wolfe (ISW) effect caused by individual inhomogeneities to determine the cosmological parameters, $H_0$, $\Omega_{\rm m}$, and $\Omega_\Lambda$, etc. This ISW-redshift test requires detailed…

宇宙学与河外天体物理 · 物理学 2015-06-23 Ronald Kantowski , Bin Chen , Xinyu Dai

Weak gravitational lensing by the intervening large-scale structure (LSS) of the Universe is the leading non-linear effect on the anisotropies of the cosmic microwave background (CMB). The integrated line-of-sight mass that causes the…

宇宙学与河外天体物理 · 物理学 2023-04-26 Alba Kalaja , Giorgio Orlando , Aleksandr Bowkis , Anthony Challinor , P. Daniel Meerburg , Toshiya Namikawa

We present the first detection of a correlation between the Lyman-$\alpha$ forest and cosmic microwave background (CMB) lensing. For each Lyman-$\alpha$ forest in SDSS-III/BOSS DR12, we correlate the one-dimensional power spectrum with the…

宇宙学与河外天体物理 · 物理学 2016-11-15 Cyrille Doux , Emmanuel Schaan , Eric Aubourg , Ken Ganga , Khee-Gan Lee , David N. Spergel , Julien Tréguer

The decay rate of cosmological gravitational potential measures the deviation from Einstein-de Sitter universe and can put strong constraints on the nature of dark energy and gravity. Usual method to measure this decay rate is through the…

天体物理学 · 物理学 2008-12-18 Pengjie Zhang

Recently Finelli et al. [http://arxiv.org/abs/1405.1555] found evidence for a relatively nearby (z = 0.16) void in a galaxy catalogue in the direction of the cosmic microwave background (CMB) Cold Spot. Using a perturbative calculation,…

宇宙学与河外天体物理 · 物理学 2014-08-20 J. P. Zibin

We study the effects of modified theories of gravity on the cosmic microwave background (CMB) anisotropies power spectrum, and in particular on its large scales, where the integrated Sachs-Wolfe (ISW) effect is important. Starting with a…

宇宙学与河外天体物理 · 物理学 2014-11-20 Tommaso Giannantonio , Matteo Martinelli , Alessandra Silvestri , Alessandro Melchiorri

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…

宇宙学与河外天体物理 · 物理学 2016-06-01 Farbod Hassani , Shant Baghram , Hassan Firouzjahi

The scattering of temperature anisotropy quadrupole by free electrons in galaxy clusters leads to a now well-known polarization signal in the cosmic microwave background (CMB) fluctuations. Using multi-frequency polarization data, one can…

天体物理学 · 物理学 2009-11-07 Asantha Cooray , Daniel Baumann

We measure the harmonic-space auto-power spectrum of the galaxy overdensity in the LOFAR Two-metre Sky Survey (LoTSS) First Data Release and its cross correlation with the map of the lensing convergence of the cosmic microwave background…

宇宙学与河外天体物理 · 物理学 2021-01-20 David Alonso , Emilio Bellini , Catherine Hale , Matt J. Jarvis , Dominik J. Schwarz

In this paper we develop a novel needlet-based estimator to investigate the cross-correlation between cosmic microwave background (CMB) lensing maps and large-scale structure (LSS) data. We compare this estimator with its harmonic…

宇宙学与河外天体物理 · 物理学 2021-12-01 Federico Bianchini , Alessandro Renzi , Domenico Marinucci

Peculiar velocities encode rich cosmological information, but their transverse components are hard to measure. Here, we present the first observations of a novel effect of transverse velocities: the dipole signatures that they imprint on…

宇宙学与河外天体物理 · 物理学 2025-06-16 Yan-Chuan Cai , John A. Peacock , Anna de Graaff , Shadab Alam

Density inhomogeneities along the line-of-sight distort fluctuations in the cosmic microwave background. Usually, this effect is thought of as a small second-order effect that mildly alters the statistics of the microwave background…

天体物理学 · 物理学 2009-10-30 Maki Suginohara , Tatsushi Suginohara , David N. Spergel

Cross-correlating the lensing signals of galaxies and comic microwave background (CMB) fluctuations is expected to provide valuable cosmological information. In particular it may help tighten constraints on parameters describing the…

宇宙学与河外天体物理 · 物理学 2017-09-14 Philipp M. Merkel , Bjoern Malte Schaefer