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相关论文: A response to criticisms on "CMB Constraints Cast …

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Non-linear evolution of density fluctuations yields secondary anisotropies in the cosmic microwave background (CMB), which are correlated with the same density fluctuations that can be measured by weak lensing (WL) surveys. We study the…

天体物理学 · 物理学 2009-11-13 Atsushi J. Nishizawa , Eiichiro Komatsu , Naoki Yoshida , Ryuichi Takahashi , Naoshi Sugiyama

We examine the extent to which galactic and extragalactic foregrounds can hamper the detection of primordial Cosmic Microwave Background (CMB) anisotropies. We limit our discussion to intermediate angular scales, $10^{\prime}\lsim \theta…

天体物理学 · 物理学 2009-09-25 L. Toffolatti

The cosmic microwave background (CMB) is gravitationally lensed by large-scale structure, which distorts observations of the primordial anisotropies in any given direction. Averaged over the sky, this important effect is routinely modelled…

宇宙学与河外天体物理 · 物理学 2021-03-17 G. Fabbian , J. Carron , A. Lewis , M. Lembo

There is currently a debate over the existence of claimed statistical anomalies in the cosmic microwave background (CMB), recently confirmed in Planck data. Recent work has focussed on methods for measuring statistical significance, on…

宇宙学与河外天体物理 · 物理学 2015-06-15 A. Rassat , J. -L. Starck

This Resource Letter provides a guide to the literature on the theory of anisotropies in the cosmic microwave background. Journal articles, web pages, and books are cited for the following topics: discovery, cosmological origin, early work,…

天体物理学 · 物理学 2007-05-23 Martin White , J. D. Cohn

The quality of CMB observations has improved dramatically in the last few years, and will continue to do so in the coming decade. Over a wide range of angular scales, the uncertainty due to instrumental noise is now small compared to the…

This is a very exciting time for the CMB field. It is widely recognized that precision measurements of the CMB can provide a definitive test of cosmological models and determine their parameters accurately. At present observations give us…

天体物理学 · 物理学 2007-05-23 George F. Smoot

We consider the question of strong cosmic censorship in spatially compact, spatially locally homogeneous vacuum models. We show in particular that strong cosmic censorship holds in Bianchi IX vacuum space--times with spherical spatial…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Piotr T. Chruściel , Alan D. Rendall

The injection of secondary particles produced by Dark Matter (DM) annihilation around redshift 1000 would inevitably affect the process of recombination, leaving an imprint on Cosmic Microwave Background (CMB) anisotropies and polarization.…

宇宙学与河外天体物理 · 物理学 2010-04-28 S. Galli , F. Iocco , G. Bertone , A. Melchiorri

We investigate a relativistic cosmological model with background rotation, sourced by a non-perfect fluid with anisotropic stress. A modified version of the CLASS Boltzmann code is employed to perform Monte Carlo Markov Chain analyses…

宇宙学与河外天体物理 · 物理学 2026-02-16 Micol Benetti , David A. Cook , Saulo Carneiro

We discuss detectability of the nonlinear growth of the large-scale structure in the cosmic microwave background (CMB) lensing. Lensing signals involved in CMB anisotropies have been measured from multiple CMB experiments, such as Atacama…

宇宙学与河外天体物理 · 物理学 2016-06-22 Toshiya Namikawa

We have updated our analysis of the 9-year WMAP data using the collection of polarization maps looking for the presence of additional evidence for a finite 'cosmic ray foreground' for the CMB. We have given special attention to high…

宇宙学与河外天体物理 · 物理学 2015-07-29 Tadeusz Wibig , Arnold W. Wolfendale

The Cosmic Microwave Background (CMB) power spectrum derived from the first year WMAP data demonstrates an intriguing lack of power at large scales that cannot be accounted for within the framework of the standard cosmological model. We…

天体物理学 · 物理学 2009-11-11 Anastasia Niarchou , Andrew H. Jaffe

The recent data from E821 Brookhaven experiment in conjunction with a new determination of the hadronic vacuum polarization contribution to the anomalous magnetic moment of muon, put new bounds on the parameters of the Constrained Minimal…

高能物理 - 唯象学 · 物理学 2007-05-23 A. B. Lahanas , D. V. Nanopoulos , V. C. Spanos

We present the first measurement of cross-correlation between the lensing potential, reconstructed from cosmic microwave background (CMB) {\it polarization} data, and the cosmic shear field from galaxy shapes. This measurement is made using…

Recently, it was argued in [Phys. Rev. Lett. {\bf126}, 031102 (2021)] that the WCCC can serve as a constraint to high-order effective field theories. However, we find there exists a key error in their approximate black hole solution. After…

广义相对论与量子宇宙学 · 物理学 2021-10-18 Jie Jiang , Aofei Sang , Ming Zhang

We believe that a recent, unconventional theoretical work published in Physical Review Letters 103, 113601 (2009) by Sekatsky, Brunner, Branciard, Gisin, Simon, albeit appealing at fist sight, is highly questionable. Furthermore, the…

量子物理 · 物理学 2015-05-14 Francesco De Martini

We present new cosmological parameter constraints for general Horndeski scalar-tensor theories, using CMB, redshift space distortion, matter power spectrum and BAO measurements from the Planck, SDSS/BOSS and 6dF surveys. We focus on…

宇宙学与河外天体物理 · 物理学 2019-05-08 Johannes Noller , Andrina Nicola

The last years have been an exciting period for the field of the Cosmic Microwave Background (CMB) research. With recent CMB balloon-borne and ground-based experiments we are entering a new era of 'precision' cosmology that enables us to…

天体物理学 · 物理学 2007-05-23 Alessandro Melchiorri

We review consequences for the radiation and dark sectors of the cosmological model arising from the postulate that the Cosmic Microwave Background (CMB) is governed by an SU(2) rather than a U(1) gauge principle. We also speculate on the…

综合物理 · 物理学 2020-09-11 Ralf Hofmann
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