Lecture of the course "General Relativity With Astrophysical Applications", taught by Prof. Rodrigo Nemmen (USP).
• Einstein ring and angle
• Derivation scheme for Einstein angle
• Einstein angle inside Our Galaxy
• Einstein angle for galaxy clusters
• Lensing and the search for MACHOs
Credit for the slides/figures belongs to Rodrigo Nemmen, unless otherwise stated.
https://rodrigonemmen.com/teaching/relatividade-geral-e-aplicacoes-astrofisicas/