Me. Araujo et Sr. Oliveira, STATIC AXISYMMETRICAL APPROACH FOR THE HEAD-ON COLLISION OF 2 BLACK-HOLES, Physical review. D. Particles and fields, 52(2), 1995, pp. 816-820
This paper presents a semianalytical approach to the interaction of tw
o (originally) spherically symmetric black holes through a head-on col
lision process. It is shown that an expression for the rate of emissio
n of gravitational radiation can be derived from the so-called Weyl po
tential. The total output of gravitational wave energy released is the
n calculated and the results are compared to recent numerical investig
ations of this problem.