Question about blacks holes and the critical circumference...
Join Date: Nov 2003
Posts: 11,695
im reading through "Black Holes and Time Warps" by kip thorne and am really enjoying it...but i have a question...
during the implosion of a star as viewed from a reference point on the surface of that star, the star will collapse through the critical circumference and into a singularity with no issues...
but viewed from an outside reference frame the star will be seen to implode until just before the critical circumference and then it will freeze...does this mean that we could potentially see the frozen light from the critical circumference of a star that became a black hole? or is the light too redshifted to be viewed thus we see it as black?
Join Date: Jul 2007
Posts: 677
The light is infinitely redshifted, which means the energy of the photons goes to zero. So no, you won't be able to "see" it.
Join Date: Nov 2003
Posts: 11,695
thanks for answering, but i still dont get it...im talking about the light rays that were emitted just before reaching the horizon so they are able to escape...
