Speaker
Description
We have performed a systematic study of the dynamics and the emission of gravitational radiation in head-on collisions of dynamically robust spinning vector boson stars, {\it aka} Proca stars. We find that the wave-like nature of bosonic stars has large impact on the gravitational-wave emission. The energy emitted in gravitational waves critically depends on the difference between the oscillation frequencies of the primary and secondary stars $\Delta\omega/\mu=(\omega_1-\omega_2)/\mu$ in a non-monotonic way. In the unequal-mass case we observe a periodic modulation of the radiated energy as a function of $\omega_2/\mu$ of the secondary star with fixed $\omega_1/\mu$ that we relate to constructive and destructive interference due to the interaction of the Proca field with itself.
| Which topic best fits your talk? | GW Theory and Fundamental Physics |
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