Gravitational radiation reaction around a static black hole surrounded by a Dehnen type dark matter halo

2025/09/10 by Ashoorioon, Amjad, Casadio, Roberto, Jafarzade, Khadije +2 · 4 citations
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Astrophysical Phenomena (astro-ph.HE) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2509.08569

Abstract

We consider the motion of a particle in the geometry of a Schwarzschild-like black hole embedded in a dark matter (DM) halo with Dehnen type density profile and calculate the orbital periods along with the evolution of the semi-latus rectum and eccentricity for extreme mass ratio inspirals (EMRIs). Such a system emits gravitational waves (GWs), and the particle's orbit evolves under radiation reaction. We also consider the effects of dynamical friction and accretion of DM on the orbital parameters. We find that the eccentricity and semi-latus rectum decrease faster with respect to the case in which EMRI is in empty spacetime.

Citations

• Geodesics and scalar perturbations of Schwarzschild black holes embedded in a Dehnen-type dark matter halo with quintessence
• Comparing Bondi and Novikov-Thorne accretion disk luminosity around regular black holes
• Astrophysical properties of static black holes embedded in a Dehnen type dark matter halo with the presence of quintessential field
• Schwarzschild Black Hole in Galaxies Surrounded by a Dark Matter Halo
• Parameterizing black hole orbits for adiabatic inspiral
• Repulsive gravity in regular black holes
• Generalized Darmois-Israel junction conditions
• Observation of Gravitational Waves from a Binary Black Hole Merger

Cited by

• Probing the gravity of a Schwarzschild black hole in the presence of a cloud of strings with EMRIs
• Extreme-Mass-Ratio Inspirals Embedded in Dark Matter Halo: Existence of Homoclinic Orbit and Horizon-Induced Chaos
• Periodic orbits and their gravitational waves in EMRIs: supermassive black hole affected by galactic dark matter halos
• Gravitational waveforms from periodic orbits around a novel regular black hole

Related

• Gravitational waveforms from periodic orbits around a Schwarzschild black hole embedded in a Dehnen-type dark matter halo
• Schwarzschild Black Hole in Galaxies Surrounded by a Dark Matter Halo
• Periodic orbits and their gravitational waves in EMRIs: supermassive black hole affected by galactic dark matter halos
• Extreme-Mass-Ratio Inspirals Embedded in Dark Matter Halo: Existence of Homoclinic Orbit and Horizon-Induced Chaos
• Signatures of a Schwarzschild-like Black Hole Immersed in Dark Matter Halo