# Dynamical friction from scalar dark matter in the relativistic regime

@article{Traykova2021DynamicalFF,
title={Dynamical friction from scalar dark matter in the relativistic regime},
author={Dina Traykova and Katy Clough and Thomas Helfer and Emanuele Berti and Pedro G. Ferreira and Lam Hui},
journal={Physical Review D},
year={2021}
}
Dina Traykova,1, ∗ Katy Clough,1, † Thomas Helfer,2, ‡ Pedro G. Ferreira,1, § Emanuele Berti,2, ¶ and Lam Hui3, ∗∗ 1Astrophysics, University of Oxford, DWB, Keble Road, Oxford OX1 3RH, UK 2Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland, 21218, USA 3Center for Theoretical Physics, Department of Physics, Columbia University, New York, NY 10027, USA (Dated: Received June 16, 2021; published – 00, 0000)

## Figures and Tables from this paper

GRChombo: An adaptable numerical relativity code for fundamental physics
Tomas Andrade1, Llibert Areste Salo2, Josu C. Aurrekoetxea3, Jamie Bamber4, Katy Clough4, Robin Croft5, Eloy de Jong3, Amelia Drew5, Alejandro Duran6, Pedro G. Ferreira4, Pau Figueras2, Hal Finkel7,
Ionization of Gravitational Atoms
• Physics
• 2021
Superradiant instabilities may create clouds of ultralight bosons around rotating black holes, forming so-called “gravitational atoms.” It was recently shown that the presence of a binary companion
Continuity equations for general matter: applications in numerical relativity
• K. Clough
• Physics
Classical and Quantum Gravity
• 2021
Due to the absence of symmetries under time and spatial translations in a general curved spacetime, the energy and momentum of matter is not conserved as it is in flat space. This means, for example,
Lessons for adaptive mesh refinement in numerical relativity
We demonstrate the flexibility and utility of the Berger-Rigoutsos Adaptive Mesh Refinement (AMR) algorithm used in the open-source numerical relativity code GRChombo for generating gravitational
Dynamical friction of black holes in ultralight dark matter
• Physics
• 2022
Rodrigo Vicente ∗ and Vitor Cardoso 3, † Institut de Fisica d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona), Spain Centro de

## References

SHOWING 1-10 OF 91 REFERENCES
Dynamical friction in slab geometries and accretion discs
• Physics
Monthly Notices of the Royal Astronomical Society
• 2019
The evolution of planets, stars, and even galaxies is driven, to a large extent, by dynamical friction of gravitational origin. There is now a good understanding of the friction produced by
Dynamical friction in Bose-Einstein condensed self-interacting dark matter at finite temperatures, and the Fornax dwarf spheroidal
• Physics
• 2021
The aim of the present work is to better understand the gravitational drag forces, i.e. dynamical friction, acting on massive objects moving through a self-interacting Bose-Einstein condensate, also
Black hole formation from axion stars
• Physics
• 2016
The classical equations of motion for an axion with potential $V(\phi)=m_a^2f_a^2 [1-\cos (\phi/f_a)]$ possess quasi-stable, localized, oscillating solutions, which we refer to as "axion stars". We
Dynamical Friction in a Gaseous Medium
Using time-dependent linear perturbation theory, we evaluate the dynamical friction force on a massive perturber Mp traveling at velocity V through a uniform gaseous medium of density ρ0 and sound
Relativistic dynamical friction in the weak scattering limit
A test mass, $M$, moving through an ambient medium of light particles with lower average kinetic energy than itself suffers a deceleration caused by its scattering of the light particles. The
Dynamical friction in superfluids
• Physics
Journal of Cosmology and Astroparticle Physics
• 2019
We compute the dynamical friction on a small perturber moving through an inviscid fluid, i.e., a superfluid. Crucially, we account for the tachyonic gravitational mass for sound waves, reminiscent of
Dynamical friction in a Fuzzy Dark Matter universe
• Physics
• 2019
We present an in-depth exploration of the phenomenon of dynamical friction in a universe where the dark matter is composed entirely of so-called Fuzzy Dark Matter (FDM), ultralight bosons of mass
Accretion onto a Moving Black Hole: A Fully Relativistic Treatment
• Physics
• 1989
The effect of constant-rate motion through a uniform adiabatic medium on the steady-state accretion of matter onto a Schwarzschild black hole is investigated theoretically by means of numerical
Probing the existence of ultralight bosons with a single gravitational-wave measurement
• Physics
Nature Astronomy
• 2019
Light bosons, proposed as a possible solution to various problems in fundamental physics and cosmology1–3, include a broad class of candidates for physics beyond the standard model, such as dilatons