The Kerr-Newman Solution

The Kerr-Newman solution is a mathematical model in physics that describes a black hole characterized by three properties: mass, electric charge, and angular momentum (spin). It extends earlier models to include charged black holes that are also spinning. This solution helps scientists understand how such black holes influence spacetime around them, including effects like gravity, electromagnetic fields, and the shape of the event horizon. It provides a comprehensive way to analyze complex black holes that have both charge and spin, deepening our understanding of these extreme cosmic objects within Einstein's theory of general relativity.