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相关论文: The Cosmic Microwave Background Spectrum

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Understanding the nature of the dark energy is one of the most important task in cosmology. In principle several cosmological observations can be used to discriminate amid a static cosmological constant contribution and a dynamical…

天体物理学 · 物理学 2007-05-23 P. S. Corasaniti

We present a formalism for analyzing interferometric observations of Cosmic Microwave Background (CMB) anisotropy and polarization data. The formalism is based upon the ell-space expansion of the angular power spectrum favoured in recent…

天体物理学 · 物理学 2009-08-18 Martin White , John E. Carlstrom , Mark Dragovan , William L. Holzapfel

The Sunyaev-Zel'dovich (SZ) effect is the inverse Compton-scattering of cosmic microwave background (CMB) photons by hot electrons in the intervening gas throughout the universe. The effect has a distinct spectral signature that allows its…

Recent measurements of the Cosmic Microwave Background Anisotropy have provided evidence for the presence of oscillations in the angular power spectrum. These oscillations are a wonderful confirmation of the standard cosmological scenario…

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

This paper covers several techniques of intercomparison of Cosmic Microwave Background (CMB) anisotropy experiments and models of structure formation. It presents the constraints on several cosmological parameters using current CMB…

天体物理学 · 物理学 2007-05-23 Graca Rocha

We report cosmic microwave background (CMB) power spectrum measurements from the first 100 sq. deg. field observed by the South Pole Telescope (SPT) at 150 and 220 GHz. On angular scales where the primary CMB anisotropy is dominant, ell ~<…

We study the Cosmic Microwave Background (CMB) anisotropies produced by cosine-type quintessence models. In our analysis, effects of the adiabatic and isocurvature fluctuations are both taken into account. For purely adiabatic fluctuations…

天体物理学 · 物理学 2009-11-06 Masahiro Kawasaki , Takeo Moroi , Tomo Takahashi

We discuss effects of cosmological moduli fields on the cosmic microwave background (CMB). If a modulus field \phi once dominates the universe, the CMB we observe today is from the decay of \phi and its anisotropy is affected by the…

高能物理 - 唯象学 · 物理学 2008-11-26 Takeo Moroi , Tomo Takahashi

Measurements of the Cosmic Microwave Background (CMB) temperature anisotropies on large angular scales have uncovered a number of anomalous features of marginal statistical significance, such as a hemispherical power asymmetry, lack of…

宇宙学与河外天体物理 · 物理学 2020-07-01 Juan I. Cayuso , Matthew C. Johnson

Upcoming cosmic microwave background (CMB) surveys will soon make the first detection of the polarized Sunyaev-Zel'dovich effect, the linear polarization generated by the scattering of CMB photons on the free electrons present in collapsed…

宇宙学与河外天体物理 · 物理学 2018-06-04 Joel Meyers , P. Daniel Meerburg , Alexander van Engelen , Nicholas Battaglia

We discuss effects of cosmological moduli fields on the cosmic microwave background (CMB). If a modulus field \phi once dominates the universe, the CMB we observe today is from the decay of \phi and its anisotropy is affected by the…

高能物理 - 唯象学 · 物理学 2007-05-23 Takeo Moroi , Tomo Takahashi

The study of cosmic microwave background (CMB) polarization is still in a pioneering stage, but promises to bring a huge advancement in cosmology in the near future, just as high-accuracy observations of the anisotropies in the total…

天体物理学 · 物理学 2007-05-23 Amedeo Balbi , Paolo Natoli , Nicola Vittorio

I review the present status of the Cosmic Microwave Background, with some emphasis on the current and future implications for particle physics. Conclusions are: gravitational instability in a dark matter dominated universe grew today's…

天体物理学 · 物理学 2007-05-23 Douglas Scott

We simulate Planck observations by adopting a detailed model of the microwave sky including monopole, dipole, anisotropies of the cosmic microwave background (CMB) and galactic and extragalactic foregrounds. We estimate the impact of main…

天体物理学 · 物理学 2007-05-23 C. Burigana , D. Maino , N. Mandolesi , F. Villa , L. Valenziano , M. Bersanelli , L. Danese , L. Toffolatti , F. Argüeso

Since the measurements of COBE/FIRAS in the mid-90's we know that the energy spectrum of the cosmic microwave background (CMB) is extremely close to that of a perfect blackbody at an average temperature T0~2.726K. However, a number of…

宇宙学与河外天体物理 · 物理学 2018-06-11 Jens Chluba

Cosmic Microwave Background (CMB) Anisotropies is a subject of intensive research in several fields of sciences. In this paper we start a systematic development of basic notions and theory in statistics according to the application for CMB.…

应用统计 · 统计学 2013-12-30 Gyorgy Terdik

We discuss the effect of the time evolution of extra dimensions on CMB anisotropies and large-scale structure formation. We study the impact of scalar fields in a low-energy effective description of a general class of brane world models on…

天体物理学 · 物理学 2009-11-07 C. S. Rhodes , C. van de Bruck , Ph. Brax , A. C. Davis

In this review, we give an overview of some of the major aspects of data reduction and analysis for the cosmic microwave background (CMB). Since its prediction and discovery in the last century, the CMB radiation has proven itself to be one…

天体物理学 · 物理学 2009-09-29 Matthieu Tristram , Ken Ganga

Under the assumption that the concordance Lambda cold dark matter (CDM) model is the correct model, we test the cosmic microwave background (CMB) anisotropy data for systematic effects by examining the band pass temperature residuals with…

天体物理学 · 物理学 2007-05-23 Louise M. Griffiths , Charles H. Lineweaver

We show how observations of temperature fluctuations in cosmic microwave background (CMB) can be used to extract information related to the large scale structure, including dark matter distribution, pressure and halo velocities involving…

天体物理学 · 物理学 2007-05-23 Asantha Cooray