Toward understanding CMB anisotropies and their implications.

  title={Toward understanding CMB anisotropies and their implications.},
  author={Hu and Sugiyama},
  journal={Physical review. D, Particles and fields},
  volume={51 6},
  • Hu, Sugiyama
  • Published 1 November 1994
  • Physics
  • Physical review. D, Particles and fields
Working toward a model-independent understanding of cosmic microwave background (CMB) anisotropies and their significance, we undertake a comprehensive and self-contained study of scalar perturbation theory. Initial conditions, evolution, thermal history, matter content, background dynamics, and geometry all play a role in determining the anisotropy. By employing analytic techniques to illuminate the numerical results, we are able to separate and identify each contribution. We thus bring out… 

Analytic spectra of CMB anisotropies and polarization generated by scalar perturbations in synchronous gauge

The temperature anisotropies and polarization of the cosmic microwave background (CMB) radiation not only serve as indispensable cosmological probes, but also provide a unique channel to detect relic

Small-Scale Cosmological Perturbations: An Analytic Approach

Through analytic techniques verified by numerical calculations, we establish general relations between the matter and cosmic microwave background (CMB) power spectra and their dependence on

The Nature of Primordial Perturbations in the Light of CMB Observations

The universe is filled with nearly isotropic cosmic microwave background (CMB) radiation, which has a blackbody spectrum of temperature T ≈ 2.73K. In addition, there are tiny direction dependent

3 Cosmic Microwave Background Anisotropies

The linear anisotropies in the temperature of the cosmic microwave background (CMB) radiation and its polarization provide a clean picture of fluctuations in the universe some 370 kyr after the big

Interpreting the CMB aberration and Doppler measurements: boost or intrinsic dipole?

The aberration and Doppler coupling effects of the Cosmic Microwave Background (CMB) were recently measured by the Planck satellite. The most straightforward interpretation leads to a direct

Probing the Friedmann equation during recombination with future cosmic microwave background experiments

We show that by combining measurements of the temperature and polarization anisotropies of the cosmic microwave background (CMB), future experiments will tightly constrain the expansion rate of the

Isocurvature modes and Baryon Acoustic Oscillations

The measurement of Baryonic Acoustic Oscillations from galaxy surveys is well known to be a robust and powerful tool to constrain dark energy. This method relies on the knowledge of the size of the

Evolution of the cosmic microwave background

We discuss the time dependence and future of the cosmic microwave background (CMB) in the context of the standard cosmological model, in which we are now entering a state of endless accelerated

The Damping Tail of Cosmic Microwave Background Anisotropies

By decomposing the damping tail of cosmic microwave background (CMB) anisotropies into a series of transfer functions representing individual physical effects, we provide ingredients that will aid in

Gravity of Cosmological Perturbations in the CMB

We, first, attempt to single out the measures of cosmological perturbations that are least afflicted by gauge artifacts and directly connect inhomogeneous large-scale evolution with microscopic



Large-scale motions in the universe : a Vatican study week

This book brings together the thinking of twenty-two eminent astronomers on a fascinating topic of contemporary astrophysics: large-scale galaxy motions. Stars group into galaxies, galaxies unite

Large-scale structure in the Universe

A variety of observations constrain models of the origin of large-scale cosmic structures. Enough observational data have accumulated to constrain (and perhaps determine) the power spectrum of

The Large-Scale Structure of the Universe

An instant landmark on its publication, this book remains the essential introduction to this vital area of research. Written by one of the world's most esteemed theoretical cosmologists, it provides


  • J., 162, 815
  • 1970


  • J. Lett., 430, L5,
  • 1994


  • J.,
  • 1994


  • Rev., D50, 627
  • 1994


  • Rev. Lett, 73, 509
  • 1994


  • J., 282, 374
  • 1984


  • Lett., B252, 336 (1990); B. Ratra and P.J.E. Peebles, Astrophys. J. Lett., 432, L5
  • 1994