Imaging the first light: experimental challenges and future perspectives in the observation of the Cosmic Microwave Background Anisotropy

Details Imaging the first light: experimental challenges and future perspectives in the observation of the Cosmic Microwave Background Anisotropy Imaging the first light: experimental challenges and future perspectives in the observation of the Cosmic Microwave Background Anisotropy

2004-02-23

arxiv.org/abs/astro-ph/0402528v1

Astronomy and Astrophysics

Astrophysics

To be published in "Recent Research Developments in Astronomy & Astrophysics Astrophysiscs" - Vol II

Scientific paper

Measurements of the cosmic microwave background (CMB) allow high precision observation of the Last Scattering Surface at redshift $z\sim$1100. After the success of the NASA satellite COBE, that in 1992 provided the first detection of the CMB anisotropy, results from many ground-based and balloon-borne experiments have showed a remarkable consistency between different results and provided quantitative estimates of fundamental cosmological properties. During 2003 the team of the NASA WMAP satellite has released the first improved full-sky maps of the CMB since COBE, leading to a deeper insight into the origin and evolution of the Universe. The ESA satellite Planck, scheduled for launch in 2007, is designed to provide the ultimate measurement of the CMB temperature anisotropy over the full sky, with an accuracy that will be limited only by astrophysical foregrounds, and robust detection of polarisation anisotropy. In this paper we review the experimental challenges in high precision CMB experiments and discuss the future perspectives opened by second and third generation space missions like WMAP and Planck.

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