Abstract
We analyze galactic black hole mergers and their emitted gravitational waves. Such mergers have typically unequal masses with a mass ratio of order 1/10. The emitted gravitational waves carry the imprint of spins and mass quadrupoles of the binary components. Among these contributions, we consider here the quasi-precessional evolution of the spins. A method of taking into account these third post-Newtonian (3 PN) effects by renormalizing (redefining) the 1.5 PN and 2 PN accurate spin contributions to the accumulated orbital phase is developed.
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