3 ms·
Event horizon is an ordinary place that happens to be bombarded by high energy particles coming from the whole galaxy in great numbers. I think you'll note.
by guard-of-terra 11y ago
Event horizon is an ordinary place that happens to be bombarded by high energy particles coming from the whole galaxy in great numbers. I think you'll note.
- danbruc 11y agoBlack holes are not active all the time, after cleaning out the surrounding space they can go through extended periods in which they are not aggregating more mass. I am not even sure if you should expect particles with high energy rushing in. Why not gas clouds with densities of a few atoms per cubic meter drifting into the black hole with modest velocity? If I remember correctly you can even be inside the event horizon before the black hole actually formed, I would definitely not expect high energy particles in such an scenario.
- guard-of-terra 11y agoWhen you approach event horizon you witness the galaxy age and die, and also get multiple billion year load of heavy particles, possibly even blueshifted thermal photons.
- danbruc 11y agoNothing special happens when you approach or cross the event horizon. If you look back, even from inside the event horizon, everything looks normal to you, at least until you are close enough to the singularity so that the curvature becomes significant. Only observers outside of the black hole see the event horizon as a special place. For a pretty accessible introduction including a discussion of falling into a black hole see for example [1]. [1] http://theoreticalminimum.com/courses/general-relativity/2012/fall http://theoreticalminimum.com/courses/general-relativity/201...
- guard-of-terra 11y agoIt does. Galaxy speeds up and then you witness it age and die. Also harvest all its decay products in very short period of time.