Exploring Primordial Sound Waves and Density Fluctuations in the Universe

Jul 08, 2025

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Dive into the evolution of density fluctuations from the photon-baryon plasma era to the matter-dominated era, influenced by non-baryonic weakly interacting dark matter. Study primordial sound waves and temperature variations in the CMB sky, comparing WMAP3 and WMAP1 data. This session delves into the impact of baryon oscillations observed in SDSS and analyses of fluctuation growth over time.

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Exploring Primordial Sound Waves and Density Fluctuations in the Universe

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LOCAL VOIDS AND THE CMB Kaiki Taro Inoue (Kinki University) Joe Silk (Oxford University) December 15 2006
PRIMORDIAL SOUND WAVES IN THE PHOTON-BARYON PLASMABECOME DENSITY FLUCTUATIONS IN MATTER-DOMINATED ERA NON-BARYONIC WEAKLY INTERACTING DARK MATTER BOOSTS FLUCTUATION GROWTH density fluctuation strength time Vittorio and Silk 1984 Bond and Efstathiou 1984
TEMPERATURE VARIATIONS IN THE CMB SKY WMAP3 vs WMAP1
BARYON OSCILLATIONS SDSS