26-30 July 2021
Europe/Berlin timezone

Measuring the dark matter environments of black hole binaries with gravitational waves

26 Jul 2021, 15:15


Parallel session talk Astroparticle and Gravitational Waves T01: Astroparticle and Gravitational Waves


Adam Coogan (GRAPPA, University of Amsterdam)


Black holes of astrophysical and primordial origin can compress their dark matter environments to extreme densities as they form and grow. This "dark dress" inevitably affects the dynamical evolution of binaries, and imprints a characteristic dephasing onto their gravitational waveforms that could be probed with upcoming interferometers. In this work, we study the prospects for detecting and characterizing the dark matter content of these systems with the Laser Interferometer Space Antenna (LISA). We introduce an analytical model for the dephasing of dark dresses motivated by the interplay between the gravitational wave emission and disruption of the dark matter halo that governs their evolution. We demonstrate that LISA could distinguishing dark dresses from standard black hole binaries and quantify how precisely their parameters could be measured. Through such measurements, future gravitational wave detectors could be a powerful tool for probing the particle nature of dark matter.

Email a.m.coogan@uva.nl
First author Adam Coogan
Collaboration / Activity None

Primary authors

Adam Coogan (GRAPPA, University of Amsterdam) Prof. Gianfranco Bertone (GRAPPA, University of Amsterdam) Bradley Kavanagh (GRAPPA, University of Amsterdam) David Nichols (University of Virginia) Daniele Gaggero (Instituto de Física Teórica UAM/CSIC)

Presentation Materials