The cosmic microwave background radiation.

Observations of the Cosmic Microwave Background

The properties of the cosmic microwave background radiation provide unique constraints on cosmological models, i.e. on the content, history, and evolution of the Universe. I discuss the latest measurements of the spectral and spatial properties of the cosmic microwave background radiation. Recent measurements from NASA's Cosmic Background Explorer (COBE) satellite, and from balloon-borne and gr...

The Cosmic Microwave Background

I review the discovery of the temperature fluctuations in the cosmic microwave background radiation. The underlying theory and the implications for cosmology are reviewed, and I describe the prospects for future progress.

Cosmic string detection from interferometric data of the microwave background radiation

Nonparametric Inference for the Cosmic Microwave Background

The Cosmic Microwave Background (CMB), which permeates the entire Universe, is the radiation left over from just 390,000 years after the Big Bang. On very large scales, the CMB radiation field is smooth and isotropic, but the existence of structure in the Universe – stars, galaxies, clusters of galaxies, . . . – suggests that the field should fluctuate on smaller scales. Recent observations, fr...

Anisotropic universes with isotropic cosmic microwave background radiation

We show the existence of spatially homogeneous but anisotropic cosmological models whose cosmic microwave background temperature is exactly isotropic at one instant of time but whose rate of expansion is highly anisotropic. The existence of these models shows that the observation of a highly isotropic cosmic microwave background temperature cannot alone be used to infer that the universe is clo...

M ay 2 00 0 Big Bang Leftovers in the Microwave : Cosmology with the Cosmic Microwave

Big Bang Leftovers in the Microwave: Cosmology with the Cosmic Microwave Background Radiation