Cosmic Background Radiation Temperature Anisotropy: Position of First Doppler Peak

Astronomy and Astrophysics – Astrophysics

Scientific paper

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16 pages LaTeX including four figures

Scientific paper

10.1142/S0217732398002709

The purpose of the Cosmic Background Radiation (CBR) experiments is to measure the temperature anisotropy via the autocorrelation function. The partial wave $l_1$ corresponding to the first Doppler peak caused by baryon-photon oscillations at the surface of last scattering depends on the present density $\Omega_0$ and the cosmological constant contribution $\Omega_{\Lambda}$. We discuss this dependence on the basis of perspicuous figures.

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