English
Related papers

Related papers: The Integrated Sachs-Wolfe Effect in 4D Einstein-G…

200 papers

We present numerical solutions of several spacetimes of physical interest, including binary black hole mergers, in shift-symmetric Einstein-scalar-Gauss-Bonnet (ESGB) gravity, and describe our methods for solving the full equations of…

General Relativity and Quantum Cosmology · Physics 2021-02-25 William E. East , Justin L. Ripley

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…

Astrophysics · Physics 2009-11-07 Asantha Cooray

The cosmic microwave background (CMB) is sensitive to the recent phase of accelerated cosmic expansion through the late-time integrated Sachs-Wolfe (ISW) effect, which manifests as secondary temperature fluctuations on large angular scales.…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-31 Simon Foreman , P. Daniel Meerburg , Joel Meyers , Alexander van Engelen

We show in detail that the recently derived expression for evaluating the integrated Sachs-Wolfe (ISW) temperature shift in the cosmic microwave background (CMB) caused by individual embedded (compensated) lenses is equivalent to the…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-07 R. Kantowski , B. Chen , X. Dai

Recently, there has been significant interest regarding the regularization of a $D\rightarrow 4$ limit of Einstein-Gauss-Bonnet (EGB) gravity. This regularization involves re-scaling the Gauss-Bonnet (GB) coupling constant as…

General Relativity and Quantum Cosmology · Physics 2024-08-14 Zinnat Hassan , P. K. Sahoo

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…

Astrophysics · Physics 2011-05-12 Wayne Hu , Ryan Scranton

I summarize recent results from Smith, Hernandez-Monteagudo & Seljak (2009), a study of the impact of nonlinear evolution of gravitational potentials in the LCDM model on the Integrated Sachs-Wolfe (ISW) contribution to the cross-power…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-30 Robert E. Smith

Topic of this article are tomographic measurements of the integrated Sachs-Wolfe effect with specifically designed, orthogonal polynomials which project out statistically independent modes of the galaxy distribution. The polynomials are…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Gero Jürgens , Bjoern Malte Schäfer

The Integrated Sachs-Wolfe (ISW) effect is a large-angle modulation of the cosmic microwave background (CMB), generated when CMB photons traverse evolving potential wells associated with large scale structure (LSS). Recent efforts have been…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-02 Jessica Muir , Dragan Huterer

We perform a cross-correlation of the Cosmic Microwave Background (CMB) using the third year Wilkinson Microwave Anisotropy Probe (WMAP) data with the 2 Micron All Sky Survey (2MASS) galaxy map (about 828 000 galaxies with median redshift z…

Astrophysics · Physics 2008-11-26 Anais Rassat , Kate Land , Ofer Lahav , Filipe B. Abdalla

We extend the Induced Matter Theory of gravity (IMT) to 5D curved spacetimes by using the Weitzenb\"ock representation of connections on a 5D curved spacetime. In this representation the 5D curvature tensor becomes null, so that we can make…

General Relativity and Quantum Cosmology · Physics 2022-06-29 Jesús Martín Romero , Mauricio Bellini

In this Letter we present a general covariant modified theory of gravity in $D\!=\!4$ space-time dimensions which propagates only the massless graviton and bypasses the Lovelock's theorem. The theory we present is formulated in $D\!>\!4$…

General Relativity and Quantum Cosmology · Physics 2020-03-02 Dražen Glavan , Chunshan Lin

The stacking of cosmic microwave background (CMB) patches has been recently used to detect the integrated Sachs-Wolfe effect (iSW). When focusing on the locations of superstructures identified in the Sloan Digital Sky Survey (SDSS), Granett…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-31 S. Ilic , M. Langer , M. Douspis

We revisit the state of the integrated Sachs-Wolfe (ISW) effect measurements in light of newly available data and address criticisms about the measurements which have recently been raised. We update the data set previously assembled by…

Cosmology and Nongalactic Astrophysics · Physics 2012-10-29 Tommaso Giannantonio , Robert Crittenden , Robert Nichol , Ashley J. Ross

Integrated Sachs-Wolfe (ISW) measurements, which involve cross-correlating the CMB with the foreground large-scale structure (e.g. galaxies/quasars), have proven to be an interesting probe of dark energy. We show that magnification bias,…

Astrophysics · Physics 2008-11-26 Marilena LoVerde , Lam Hui , Enrique Gaztanaga

A general covariant Einstein-Gauss-Bonnet Gravity in Four-Dimensional (4D EGB) spacetime is shown to bypass Lovelock's theorem and is free from Ostrogradsky instability. Meanwhile, the bumblebee theory is a vector-tensor theory. It extends…

General Relativity and Quantum Cosmology · Physics 2024-09-11 Misba Afrin , Sushant G. Ghosh , Anzhong Wang

We show that linear redshift distortions in the galaxy distribution can affect the ISW galaxy-temperature signal, when the galaxy selection function is derived from a redshift survey. We find this effect adds power to the ISW signal at all…

Cosmology and Nongalactic Astrophysics · Physics 2009-02-12 Anais Rassat

In some scenarios, the peculiar gravitational potential of linear and mildly nonlinear structures depends on time and, as a result of this dependence, a late integrated Sachs-Wolfe effect appears. Here, an appropriate formalism is used…

Astrophysics · Physics 2009-10-31 Marius J. Fullana , Diego Saez

We investigate the impact of nonlinear evolution of the gravitational potentials in the LCDM model on the Integrated Sachs-Wolfe (ISW) contribution to the CMB temperature power spectrum, and on the cross-power spectrum of the CMB and a set…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-06 Robert E. Smith , Carlos Hernandez-Monteagudo , Uros Seljak

A novel four-dimensional Einstein-Gauss-Bonnet gravity was formulated by D. Glavan and C. Lin [Phys. Rev. Lett. 124, 081301 (2020)], which is intended to bypass the Lovelock's theorem and to yield a non-trivial contribution to the…

General Relativity and Quantum Cosmology · Physics 2020-07-27 Ke Yang , Bao-Min Gu , Shao-Wen Wei , Yu-Xiao Liu
‹ Prev 1 4 5 6 7 8 10 Next ›