Cosmic Background Radiation Temperature Anisotropy: Position of First Doppler Peak
classification
🌌 astro-ph
hep-ph
keywords
anisotropybackgroundcosmicdopplerfirstomegapeakradiation
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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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