Gravitational Lensing: Micro-Lensing and Multiple Images

This lecture by the instructor covers the fascinating topic of gravitational lensing, focusing on micro-lensing and multiple images. The presentation delves into the concepts of strong and weak lensing, caustic lines, and the Einstein radius. It also explores the practical applications of gravitational lensing, such as the search for dark matter using microlensing. The lecture provides insights into the phenomenon of lensing by exoplanets and offers a glimpse into the tools and simulations available for studying gravitational lensing. Additionally, it discusses the modeling of strong lensing, including the famous Bullet Cluster and the challenges in identifying multiple images in gravitational lensing systems.