The discussion clarifies the nature of gravitational waves, specifically in relation to black holes. Gravitational waves, as detected by LIGO, are emitted from the merging of black holes outside their event horizons, not from within. These waves are massless and travel at the speed of light, carrying energy without possessing stress-energy. The misconception that gravitational waves have mass and are affected by gravity is addressed, emphasizing their adherence to the geometry of spacetime.
PREREQUISITESAstronomers, physicists, and students interested in gravitational wave research, black hole physics, and the implications of general relativity.
negative said:gravity waves are supposed to have mass
negative said:they are supposed to be effected by gravity itself
negative said:how are we supposed to detect gravitational waves emitted from a black hole when none can get out?
thank's that clears thing up. but , don't gravity waves move slower than the speed of light? 0_o still no mass?PeterDonis said:No, they don't. They carry energy, but they have zero stress-energy.
In the sense that they follow the geometry of spacetime, yes.
The gravitational waves detected by LIGO were not emitted from inside black holes. They were emitted from outside the horizons of merging black holes.
negative said:don't gravity waves move slower than the speed of light?