Motivated by the recent detection of the gravitational wave signal emitted by a binary neutron star merger, we analyse the possible impact of dark matter on such signals. We show that dark matter cores in merging neutron stars may yield an observable supplementary peak in the gravitational wave power spectral density following the merger, which could be distinguished from the features produced by the neutron components.
Ellis, J., Hektor, A., Hütsi, G., Kannike, K., Marzola, L., Raidal, M., & Vaskonen, V. (2018). Search for dark matter effects on gravitational signals from neutron star mergers. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 781, 607–610. https://doi.org/10.1016/j.physletb.2018.04.048