5 ms·
In this comment, are you defining density as mass per volume contained by event horizon? Or do we know how the mass is distributed inside the black hole? Does i
by kqr 5y ago
In this comment, are you defining density as mass per volume contained by event horizon? Or do we know how the mass is distributed inside the black hole? Does it even make sense to discuss distribution of mass in a black hole? Would clues about that leak out through dynamics like rotation?
- jfengel 5y agoYou only need total mass and total volume. No other details leak out. A non spinning black hole is an absolutely perfect sphere, with no "hair". A spinning black hole is flattened, or maybe even a torus, but is still mathematically perfect. Unless quantum mechanics intervenes in ways nobody has yet figured out.
- kqr 5y agoTotal volume of... what? Contained within event horizon? Surely not singularity? (Which I would assume to be a... well, singularity.)
- jfengel 5y agoYep, event horizon. The singularity occurs at a nominal point at the center (or a ring for a rotating black hole). It has no volume, but all of the mass ends up there, causing divide by zero errors.