Triple Experiment Spectrum of the Sunyaev-Zeldovich Effect in the Coma Cluster: H_0

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  • 26 March 2003
Abstract
The Sunyaev-Zeldovich (SZ) effect was previously measured in the Coma cluster by the OVRO and MITO experiments, and recently also with the WMAP satellite. We assess the consistency of these results and their implications on the feasibility of high frequency SZ work with ground-based telescopes. The unique dataset from the combined measurements at six frequency bands is jointly analyzed to determine the Hubble constant, H_0, towards Coma: H_0 \simeq (77 \pm 20) km/(s Mpc), whose error include both y and X-ray data uncertainties.

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