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Explore the second lecture in a series on gravitational waves focusing on astrophysical sources, delivered by Parameswaran Ajith at the International Centre for Theoretical Sciences. Delve into advanced concepts of gravitational wave physics as part of a comprehensive program examining cosmic sources and their implications for physics beyond the Standard Model. Learn about the experimental detection of gravitational waves from merging black holes and neutron stars, and understand how these observations connect to fundamental physics research. Examine various cosmological phenomena that generate gravitational waves, including inflation-related tensor perturbations, Primordial Black Holes, first-order Phase Transitions, and topological defects. Discover how recent findings from collaborations like NANO-Grav and InPTA contribute to our understanding of Stochastic Gravitational Wave Background (SGWB) and their significance in probing high-scale physics beyond current experimental capabilities.
