Comparing Accretion Disks and Dark Matter Spikes in Intermediate Mass Ratio Inspirals

Abstract

Intermediate Mass Ratio Inspirals (IMRIs) will be observable with space-based gravitational wave detectors such as the Laser Interferometer Space Antenna (LISA). To this end, the environmental effects in such systems have to be modeled and understood. These effects can include (baryonic) accretion disks and dark matter (DM) overdensities, so called spikes. For the first time, we model an IMRI system with both an accretion disk and a DM spike present and compare their effects on the inspiral and the emitted gravitational wave signal. We study the eccentricity evolution, employ the braking index and derive the dephasing index, which turn out to be complementary observational signatures. They allow us to disentangle the accretion disk and DM spike effects in the IMRI system.

16 pages, 8 figures. Submitted to PRD. Code available online at http://github.com/DMGW-Goethe/imripy

References in corpus (17)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog
• Active Galactic Nuclei: what's in a name?
• Can environmental effects spoil precision gravitational-wave astrophysics?
• Accretion disc viscosity: how big is alpha?
• Observational evidence for intermediate-mass black holes
• Gravitational waves as a probe of dark matter mini-spikes
• Dynamical Friction of a Circular-Orbit Perturber in a Gaseous Medium
• The influence of the hydrodynamic drag from an accretion torus on extreme mass-ratio inspirals
• Measuring the dark matter environments of black hole binaries with gravitational waves
• Eccentricity evolution of compact binaries and applications to gravitational-wave physics
• Circularization vs. Eccentrification in Intermediate Mass Ratio Inspirals inside Dark Matter Spikes
• Systematic bias on the inspiral-merger-ringdown consistency test due to neglect of orbital eccentricity
• Intermediate Mass-Ratio Inspirals with Dark Matter Minispikes
• Prospects of gravitational-waves detections from common-envelope evolution with LISA
• Orbital evolution of gas-driven inspirals with extreme mass-ratios: retrograde eccentric orbits
• Orbital evolution of eccentric low-mass companions embedded in gaseous disks: testing the local approximation

Cited by in corpus (19)

• The Science of the Einstein Telescope
• Adiabatically compressed wave dark matter halo and intermediate-mass ratio inspirals
• Extreme mass ratio inspirals in galaxies with dark matter halos
• Gravitational Radiation from hyperbolic encounters in the presence of dark matter
• Sharpening the dark matter signature in gravitational waveforms II: Numerical simulations with the NbodyIMRI code
• Secondary accretion of dark matter in intermediate mass-ratio inspirals: Dark-matter dynamics and gravitational-wave phase
• Dynamical friction from self-interacting dark matter
• Examining the effects of dark matter spikes on eccentric intermediate mass ratio inspirals using N-body simulations
• Testing gravity with Extreme-Mass-Ratio Inspirals
• Probing vector gravitational atoms with eccentric intermediate mass-ratio inspirals
• Post-Newtonian effects in compact binaries with a dark matter spike: A Lagrangian approach
• Probing dark matter halo profiles with multi-band observations of gravitational waves
• Intermediate mass ratio inspirals in dark matter halos
• Intermediate-mass-ratio inspirals with general dynamical friction in dark matter minispikes
• Detectability of dark matter density distribution via gravitational waves from binary black holes in the Galactic center
• Mass and spin coevolution of black holes inspiralling through dark matter
• Preliminary forecasting constraint on scalar charge with LISA in non-vacuum environments
• Hints of Dark Matter Spikes in Low-mass X-ray Binaries: a critical assessment
• Generic effective sources for first-order in mass-ratio gravitational self-force calculations in Schwarzschild spacetime