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相关论文: Cross-correlation between the cosmic microwave and…

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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 present measurements of the power spectra of cosmic infrared background (CIB) and cosmic microwave background (CMB) fluctuations in six frequency bands. Maps at the lower three frequency bands, 95, 150, and 220 GHz (3330, 2000, 1360…

We propose a cross-internal linear combination (cross-ILC) approach to measure the small-scale cosmic microwave background (CMB) anisotropies robustly against the contamination from astrophysical signals. In particular, we focus on the…

宇宙学与河外天体物理 · 物理学 2023-06-21 Srinivasan Raghunathan , Yuuki Omori

We present the first calculation of the cross-correlation between three-dimensional cosmic shear and the integrated Sachs-Wolfe (iSW) effect. Both signals are combined in a single formalism, which permits the computation of the full…

宇宙学与河外天体物理 · 物理学 2016-03-22 Britta Zieser , Philipp M. Merkel

We present evidence of a large angle correlation between the cosmic microwave background measured by WMAP and a catalog of photometrically detected quasars from the SDSS. The observed cross correlation is (0.30 +- 0.14) microK at zero lag,…

We measure the skewness power spectrum of the Cosmic Microwave Background (CMB) anisotropies optimized for a detection of the secondary bispectrum generated by the correlation of the CMB lensing potential with integrated Sachs-Wolfe effect…

宇宙学与河外天体物理 · 物理学 2013-05-29 Erminia Calabrese , Joseph Smidt , Alexandre Amblard , Asantha Cooray , Alessandro Melchiorri , Paolo Serra , Alan Heavens , Dipak Munshi

We cross-correlate the Cosmic Microwave Background (CMB) temperature anisotropies observed by the Wilkinson Microwave Anisotropy Probe (WMAP) with the projected distribution of extended sources in the Two Micron All Sky Survey (2MASS). By…

天体物理学 · 物理学 2009-08-29 Niayesh Afshordi , Yeong-Shang Loh , Michael A. Strauss

A crucial diagnostic of the \Lambda CDM cosmological model is the integrated Sachs-Wolfe (ISW) effect of large-scale structure on the cosmic microwave background (CMB). The ISW imprint of superstructures of size \sim100\;h^{-1} Mpc at…

宇宙学与河外天体物理 · 物理学 2012-06-29 Seshadri Nadathur , Shaun Hotchkiss , Subir Sarkar

We present a global measurement of the integrated Sachs-Wolfe (ISW) effect obtained by cross-correlating all relevant large scale galaxy data sets with the cosmic microwave background radiation map provided by the Wilkinson Microwave…

Temperature anisotropies in the Cosmic Microwave Background (CMB) are affected by the late Integrated Sachs-Wolfe (lISW) effect caused by any time-variation of the gravitational potential on linear scales. Dark energy is not the only source…

天体物理学 · 物理学 2008-11-26 Julien Lesgourgues , Wessel Valkenburg , Enrique Gaztanaga

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

General Relativity provides us with an extremely powerful tool to extract at the same time astrophysical and cosmological information from the Stochastic Gravitational Wave Backgrounds (SGWBs): the cross-correlation with other cosmological…

宇宙学与河外天体物理 · 物理学 2022-01-05 Angelo Ricciardone , Lorenzo Valbusa Dall'Armi , Nicola Bartolo , Daniele Bertacca , Michele Liguori , Sabino Matarrese

Secondary contributions to the anisotropy of the Cosmic Microwave Background (CMB), such as the integrated Sachs-Wolfe (ISW) effect, the thermal Sunyaev-Zel'dovich effect (tSZ), and the effect of gravitational lensing, have distinctive…

宇宙学与河外天体物理 · 物理学 2012-07-27 Dipak Munshi , Peter Coles , Alan Heavens

This work explores the potential to detect the nonlinear Integrated Sachs Wolfe effect, namely the Rees-Sciama effect (ISWRS), by cross-correlating current and future Cosmic Microwave Background (CMB) experiments -- Simons Observatory,…

宇宙学与河外天体物理 · 物理学 2026-02-18 Viviana Cuozzo , Marina Migliaccio , Matteo Calabrese , Carmelita Carbone

The measurement of the anisotropies in the cosmic infrared background (CIB) is a powerful mean of studying the evolution of galaxies and large-scale structures. These anisotropies have been measured by a number of experiments, from the…

The epoch of first star formation and the state of the intergalactic medium (IGM) at that time are not directly observable with current telescopes. The radiation from those early sources is now part of the Cosmic Infrared Background (CIB)…

宇宙学与河外天体物理 · 物理学 2015-06-23 Fernando Atrio-Barandela , Alexander Kashlinsky

The late-time growth of large scale structures (LSS) is imprinted in the CMBR anisotropy through the Integrated Sachs Wolfe (ISW) effect. This is perceived to be a very important observational probe of dark energy. Future observations of…

天体物理学 · 物理学 2009-08-24 Tapomoy Guha Sarkar , Kanan K. Datta , Somnath Bharadwaj

We derive updated constraints on the Integrated Sachs-Wolfe (ISW) effect through cross-correlation of the cosmic microwave background with galaxy surveys. We improve with respect to similar previous analyses in several ways. First, we use…

宇宙学与河外天体物理 · 物理学 2018-04-23 Benjamin Stölzner , Alessandro Cuoco , Julien Lesgourgues , Maciej Bilicki

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

The Integrated Sachs-Wolfe (ISW) effect predicts additional anisotropies in the Cosmic Microwave Background due to time variation of the gravitational potential when the expansion of the universe is not matter dominated. The ISW effect is…

宇宙学与河外天体物理 · 物理学 2016-03-04 Giovanni Cabass , Martina Gerbino , Elena Giusarma , Alessandro Melchiorri , Luca Pagano , Laura Salvati