- #1
Naty1
- 5,606
- 40
Here I had been thinking the Unruh horizons and specifically black hole horizons were the only (thermal) radiators.
Now I notice Leonard Susskind says in THE BLACK HOLE WAR that the cosmological horizon also radiates...but "inward" towards us. If a thermometer on a string were extended close to the cosmological horizon, he says "...we would discoverer the temperature increases eventually approaching the infinite temperature at the horizon of a black hole..."
What do you think??
If that's accepted or at least a rational theoretical idea, would a suspended (stationary) observer inside a black hole horizon also observe such radiation...thermal type? Seems like one would but I've never seen that stated anywhere.
Now I notice Leonard Susskind says in THE BLACK HOLE WAR that the cosmological horizon also radiates...but "inward" towards us. If a thermometer on a string were extended close to the cosmological horizon, he says "...we would discoverer the temperature increases eventually approaching the infinite temperature at the horizon of a black hole..."
What do you think??
If that's accepted or at least a rational theoretical idea, would a suspended (stationary) observer inside a black hole horizon also observe such radiation...thermal type? Seems like one would but I've never seen that stated anywhere.