The very small array: Latest results and future plans

Keith Grainge

The very small array: Latest results and future plans

University of Cambridge

Research output: Contribution to journal › Conference article › peer-review

Abstract

The VSA is an aperture synthesis array dedicated to measuring anisotropies in the Cosmic Microwave Background (CMB). It has observed in two configurations to measure the CMB power spectrum from ℓ = 150 - 1600, detecting the first three acoustic peaks at good signal-to-noise. We now plan to enhance the telescope to allow observation at higher ℓ. This will allow measurement of the fourth and subsequent peaks and will allow us to break degeneracies that exist at present between cosmological parameters. In addition we will investigate the excess power detected by CBI at ℓ > 2000 and will conduct high-sensitivity searches for topological defects.

Original language	English
Pages (from-to)	1009-1018
Number of pages	10
Journal	Modern Physics Letters A
Volume	19
Issue number	13-16
Publication status	Published - 30 May 2004

Cite this

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AB - The VSA is an aperture synthesis array dedicated to measuring anisotropies in the Cosmic Microwave Background (CMB). It has observed in two configurations to measure the CMB power spectrum from ℓ = 150 - 1600, detecting the first three acoustic peaks at good signal-to-noise. We now plan to enhance the telescope to allow observation at higher ℓ. This will allow measurement of the fourth and subsequent peaks and will allow us to break degeneracies that exist at present between cosmological parameters. In addition we will investigate the excess power detected by CBI at ℓ > 2000 and will conduct high-sensitivity searches for topological defects.

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The very small array: Latest results and future plans

Abstract

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