Therefore, the gtt^1/2 factors cancel in numerator and denominator and the resulting Hawking-Unruh-Bekenstein (HRB) temperature (peak frequency) of the blackbody signal is simply proportional to the Newtonian event horizon surface gravity acceleration c^2/rs (the IR

rs ~ GM/c^2

Computing this in more detail, we must use for the virtual particle radiators stuck to the gtt = 0 horizon source

Now, what Hawking et-al predict are the LOW ENERGY IR surface eigen-modes from ripples in the event horizon area.

There, should also be HIGH ENERGY UV radial eigen-modes of fundamental frequency c/Lp from the horizon.

These also get redshifted down to our detectors to peak signal frequency c/(Lprs)^1/2

i.e. wavelength = geometric mean of Planck scale with horizon scale.

When we apply this to back from the future advanced radiation from our future de Sitter horizon, we get exactly the observed dark energy density hc/Lp^2A

However, let's look at retarded radiation from black holes in our past light cone.

The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is the radius of a sphere such that, if all the mass of an object is compressed within that sphere, the escape speed from the surface of the sphere would equal the speed of light. An example of an object smalle...