# Generalized source multipole moments of dynamical horizons in binary black hole mergers

@inproceedings{Prasad2021GeneralizedSM, title={Generalized source multipole moments of dynamical horizons in binary black hole mergers}, author={Vaishak Prasad}, year={2021} }

In this work, we uncover new features in the evolution of the deformations of the dynamical horizon geometry in a binary black hole merger scenario using numerical relativity. First, in the inspiral phase, owing to the deformations, the dynamical horizons of the two black holes are found to steadily acquire multipole moments that vanish when the horizons are isolated. Out of these, the dominant moment is found to be the quadrupole moment. Second, we show that they encode detailed information…

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