Gravitational Collapse
Gravitational collapse is a process by which an astronomical object or system of objects falls in on itself under the influence of gravity, resulting in changes to its structure and composition. This can lead to phenomena such as the formation of stars from interstellar clouds, the creation of black holes from massive stellar remnants, or the aggregation of matter into larger structures like galaxies.
Key Points
- Definition: The process by which an object’s internal pressure is overcome by gravity, leading to a contraction and potential densification.
- Examples:
- Formation of stars from nebulae
- Creation of black holes from stellar remnants
- Galaxy formation through the gravitation
- Theoretical Implications:
- Classical General Relativity predicts the formation of a singularity of infinite density at the center of a collapsed object.
- Recent theoretical models suggest that quantum gravity effects may prevent true singularities, proposing instead that the core resembles a “frozen big bang” state, effectively halting the collapse at Planck scale densities rather than infinite ones Black Hole Singularities: Frozen Big Bang and Quantum Gravity Solutions.