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Cosmic Background Radiation Temperature Anisotropy: Position of First Doppler Peak

Paul H. Frampton, Y. Jack Ng, Ryan Rohm

astro-pharXiv:astro-ph/9806118

Abstract

The purpose of the Cosmic Background Radiation (CBR) experiments is to measure the temperature anisotropy via the autocorrelation function. The partial wave l1 corresponding to the first Doppler peak caused by baryon-photon oscillations at the surface of last scattering depends on the present density Ω0 and the cosmological constant contribution ΩΛ. We discuss this dependence on the basis of perspicuous figures.

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