Assume the surface area of the event horizon of an ordinary black hole is 10(adsbygoogle = window.adsbygoogle || []).push({}); ^{50},

ordinary meaning uncharged and nonrotating.

The hole glows with Hawking radiation----what is the radiant power?

I gave the event horizon area in natural units but it's easy to convert to square meters if you wish it that way.

The area 10^{50}is 2.6 x 10^{-20}square meters, or 2.6 square angstroms.

In natural units (c=G=hbar=k=1) the radiant power of a BH

with area A is simply

1/960A

So having the area 10^{50}means that the luminosity is essentially 10^{-53}. To which of the four wattage figures given in the poll is this equivalent?

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# The Hawking wattage of a black hole

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