Speaker
Alberto Revilla
(Institut de Ciències del Cosmos Universitat de Barcelona (ICCUB))
Description
Tidal forces excite oscillatory modes of a neutron star in a binary system as the inspiral sweeps through the mode's resonant frequency. The excitation of the oscillatory modes imprints frequency-dependent signatures on the emitted gravitational waveform. These manifest as a sudden phase change in the waveform and an advance in the merger time of up to a millisecond or so.
In this talk we quantify when such resonant effects become observable by current and next-generation gravitational wave observatories. We compare waveforms with and without a resonance to assess the detectability of these effects, and explore the possibility of identifying resonant signatures from previously observed binary neutron star events.
Authors
Alberto Revilla
(Institut de Ciències del Cosmos Universitat de Barcelona (ICCUB))
Prof.
Andrew Lundgren
(IFAE-ICREA)
Prof.
Jordi Miralda
(ICCUB-UB-ICREA)
Ruxandra Bondarescu
(Universitat de Barcelona)
