- #1

TheMan112

- 43

- 1

**But how can I calculate how much of their combined original mass would (at most) be released as radiation in the collision?**

I know I should start from the "area-theorem". Unable to find it in my coursebook, I looked it up on wikipedia.

Hawking's Area theorem:

[tex]A_H=\frac{4\pi G^2}{c^4}((M + \sqrt{M^2-a^2})^2+a^2)[/tex]

- This being the area of the eventhorizon of the black hole.

Is there some relation between the areas the two original black holes and the subsequently combined black hole?