◆ Journal of Cosmology and Astroparticle Physics2026-03-01· Physics
Understanding the nature of scalar-induced gravitational waves
Antonio Junior Iovino, Gabriele Perna, Davide Perrone, Davide Racco, Antonio Riotto
原始摘要（英文原文）· Original abstract
Abstract We offer a physical interpretation of the origin of the scalar-induced gravitational wave background, showing that it is mainly produced around the peaks of the scalar perturbations. We also provide a compact expression to estimate the amount of scalar-induced gravitational waves generated by peaks.