The peaks in the power spectrum corresponding to sound waves in the early universe.
CMB acoustic peaks are the fingerprints of sound waves in the early universe, imprinted on the cosmic microwave background. They reveal the universe’s geometry, composition, and evolution, confirming the Lambda-CDM model.
Acoustic peaks are periodic ripples in the cosmic microwave background temperature, imprinted by sound waves in the early universe. These peaks encode the fundamental physics of the Big Bang and have become a cornerstone of modern cosmology, revealing the composition and evolution of the cosmos.
