Slide 21
Slide 21 text
Generic features of gravitational collapse
Formation of spacetime singularity:
unavoidable once star crosses r=2M (singularity theorems)
point where theory breaks down
Formation of event horizon:
singularities inside event horizon, hidden from external observers
Cosmic censorship conjecture: singularities always hidden inside event
horizon even for nonspherical collapse
Area increase:
if mass falls in a black hole, its area will increase
analogous to entropy in thermodynamic → laws of black hole
thermodynamics