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The integrated Sachs-Wolfe (ISW) effect in the cosmic microwave background (CMB) as measured through its correlation with galaxies provides a unique opportunity to study the dynamics of the dark energy through its large scale clustering…

天体物理学 · 物理学 2011-05-12 Wayne Hu , Ryan Scranton

Evidences for late-time acceleration of the Universe are provided by multiple probes, such as Type Ia supernovae, the cosmic microwave background (CMB) and large-scale structure (LSS). In this work, we focus on the integrated Sachs--Wolfe…

宇宙学与河外天体物理 · 物理学 2016-07-27 E. Moura Santos , F. C. Carvalho , M. Penna-Lima , C. P. Novaes , C. A. Wuensche

We discuss the correlation between late-time integrated Sachs-Wolfe (ISW) effect in the cosmic microwave background (CMB) temperature anisotropies and the large scale structure of the local universe. This correlation has been proposed and…

天体物理学 · 物理学 2009-11-07 Asantha Cooray

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…

天体物理学 · 物理学 2009-07-09 Wayne Hu

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…

宇宙学与河外天体物理 · 物理学 2014-02-26 Ruth Pearson , Oliver Zahn

We cross-correlate large scale structure (LSS) observations from a number of surveys with CMB anisotropies from WMAP to investigate the Integrated Sachs-Wolfe (ISW) effect as a function of redshift, covering z~0.1-2.5. Our main goal is to…

天体物理学 · 物理学 2008-11-26 Shirley Ho , Christopher M. Hirata , Nikhil Padmanabhan , Uros Seljak , Neta Bahcall

We cross correlate the large-scale cosmic microwave background (CMB) sky measured by WMAP with two probes of large-scale structure at z ~ 1. The hard X-ray background, measured by the HEAO-1 satellite, is positively correlated with the WMAP…

天体物理学 · 物理学 2008-11-26 Stephen Boughn , Robert Crittenden

We investigate the possibility of constraining dark energy with the Integrated Sachs Wolfe effect recently detected by cross-correlating the WMAP maps with several Large Scale Structure surveys. In agreement with previous works, we found…

天体物理学 · 物理学 2007-05-23 P. S. Corasaniti , T. Giannantonio , A. Melchiorri

Dark energy interacting with dark matter is a promising model to solve the cosmic coincidence problem. We study the signature of such interaction on large scale cosmic microwave background (CMB) temperature anisotropies. Based on the detail…

广义相对论与量子宇宙学 · 物理学 2009-11-06 Jian-Hua He , Bin Wang , Pengjie Zhang

The cross-correlation between cosmic microwave background (CMB) temperature anisotropies and the large scale structure (LSS) traced by the galaxy distribution, or sources at different wavelengths, is now well known. This correlation results…

天体物理学 · 物理学 2009-11-13 Asantha Cooray , Alessandro Melchiorri

Recent studies by a number of independent collaborations, have correlated the CMB temperatures measured by the WMAP satellite with different galaxy surveys that trace the matter distribution with light from the whole range of the…

天体物理学 · 物理学 2009-11-10 E. Gaztanaga , M. Manera , T. Multamaki

Integrated Sachs-Wolfe (ISW) effect can be estimated by cross-correlating Cosmic Microwave Background (CMB) sky with tracers of the local matter distribution. At late cosmic time, the dark energy induced decay of gravitation potential…

宇宙学与河外天体物理 · 物理学 2011-03-21 Guo-Chin Liu , Kin-Wang Ng , Ue-Li Pen

We study CMB in the nonstandard background cosmology recently investigated. Using the previously calculated first order metric perturbations we discuss the Sachs-Wolfe and the integrated Sachs-Wolfe effects. We show how small-multipole CMB…

综合物理 · 物理学 2019-08-06 Gunter Scharf

We study, for the first time, the cross correlation between the angular distribution of radial peculiar velocities (PV) and the lensing convergence of cosmic microwave background (CMB) photons. We derive theoretical expectations for the…

宇宙学与河外天体物理 · 物理学 2023-07-26 Leonardo Giani , Cullan Howlett , Rossana Ruggeri , Federico Bianchini , Khaled Said , Tamara M. Davis

The integrated Sachs-Wolfe (ISW) effect provides us the information of the time evolution of gravitational potential. The cross-correlation between the cosmic microwave background (CMB) and the large scale structure (LSS) is known as a…

宇宙学与河外天体物理 · 物理学 2015-09-23 Seokcheon Lee

Cosmic Microwave Background (CMB) is a powerful probe to study the early universe and various cosmological models. Weak gravitational lensing affects the CMB by changing its power spectrum, but meanwhile, it also carries information about…

宇宙学与河外天体物理 · 物理学 2021-06-09 Chandra Shekhar Saraf

The kinetic Sunyaev Zel'dovich (kSZ) and moving lens effects, secondary contributions to the cosmic microwave background (CMB), carry significant cosmological information due to their dependence on the large-scale peculiar velocity field.…

宇宙学与河外天体物理 · 物理学 2023-03-08 Juan Cayuso , Richard Bloch , Selim C. Hotinli , Matthew C. Johnson , Fiona McCarthy

We present results for the cross-correlation between the WMAP 1st-year cosmic microwave background (CMB) anisotropy data and optical galaxy surveys: the APM and SDSS DR1 catalogs. Our measurement of a positive CMB-galaxy correlation on…

天体物理学 · 物理学 2007-05-23 Pablo Fosalba , Enrique Gaztanaga , Francisco J. Castander

We study heterogeneous quantities that efficiently cross-correlate the lensing information encoded in CMB polarization and large-scale structures recovered from weak lensing galaxy surveys. These quantities allow us to take advantage of the…

天体物理学 · 物理学 2007-05-23 K. Benabed , F. Bernardeau , L. Van Waerbeke

If Dark Energy introduces an acceleration in the universal expansion then large scale gravitational potential wells should be shrinking, causing a blueshift in the CMB photons that cross such structures (Integrated Sachs-Wolfe effect,…

宇宙学与河外天体物理 · 物理学 2015-05-20 N. Taburet , C. Hernandez-Monteagudo , N. Aghanim , M. Douspis , R. A. Sunyaev
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