Was just curious as to if this equation on wikipedia was accurate.(adsbygoogle = window.adsbygoogle || []).push({});

The link on wiki stateshttp://upload.wikimedia.org/math/9/1/e/91ead79dbf75e21b618af5d067458717.png The power emitted by a black hole in the form of Hawking radiation can easily be estimated for the simplest case of a nonrotating, non-charged Schwarzschild black hole of mass M. Combining the formulae for the Schwarzschild radius of the black hole, the Stefan-Boltzmann law of black-body radiation, the above formula for the temperature of the radiation, and the formula for the surface area of a sphere (the black hole's event horizon) we get:

So what I'm wondering is, exactly what units would P or rather the energy outflow be represented as. I was thinking joules, but for some reason couldn't get all the units to cancel out, which is probably just a mistake on my part. Anyway, anyone have any thoughts or input on this subject? where P is the energy outflow, \hbar is the reduced Planck constant, c is the speed of light, and G is the gravitational constant. It is worth mentioning that the above formula has not yet been derived in the framework of semiclassical gravity.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Black Hole Radiation

Loading...

Similar Threads for Black Hole Radiation |
---|

B Do Black Holes Destroy Information? |

I Photon emission, power output (and black holes) |

B Black hole emits quantum particles from the mass sucked in? |

B Black hole information paradox and determinism |

I ER = EPR? |

**Physics Forums | Science Articles, Homework Help, Discussion**