Signatures of ultralight bosons in the orbital eccentricity of binary black holes

25 Sept 2024, 14:32
16m
Main Auditorium (DESY Hamburg)

Main Auditorium

DESY Hamburg

Notkestr. 85 D-22607 Hamburg, Germany
Cosmology & Astroparticle Physics Parallel Wednesday Cosmo 1

Speaker

Dr Mateja Boskovic (DESY)

Description

It is well known that clouds of ultralight particles surrounding black holes produced by the superradiant instability can experience Landau-Zehner transitions if the black hole is part of a binary system.
We study the effect of orbital eccentricity, backreaction of the cloud onto it and observational possibilities with future gravitational-wave detectors like the Laser Interferometer Space Antenna, as well as the planned deciHertz gravitational-wave observatories. For black hole binaries with chirp masses below $10\,M_\odot$ , such effects would provide strong evidence for the existence of a new particle of mass between $10^{-13}$ to $10^{-11}\,\mathrm{eV}$.

Primary authors

Dr Mateja Boskovic (DESY) Matthias Koschnitzke (T (Phenomenology)) Rafael Alejandro Porto Pereira (Z_THAT (Theoretische Gravitationswellenastrophys))

Presentation materials