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) 
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,Expand

References

SHOWING 1-10 OF 91 REFERENCES
Dynamical friction in slab geometries and accretion discs
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 byExpand
Dynamical friction in Bose-Einstein condensed self-interacting dark matter at finite temperatures, and the Fornax dwarf spheroidal
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, alsoExpand
Black hole formation from axion stars
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". WeExpand
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 soundExpand
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. TheExpand
Dynamical friction in superfluids
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 ofExpand
Dynamical friction in a Fuzzy Dark Matter universe
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 massExpand
Accretion onto a Moving Black Hole: A Fully Relativistic Treatment
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 numericalExpand
Cosmology of the invisible axion
Abstract We identify a new cosmological problem for models which solve the strong CP puzzle with an invisible axion, unrelated to the domain wall problem. Because the axion is very weakly coupled,Expand
Probing the existence of ultralight bosons with a single gravitational-wave measurement
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 dilatonsExpand
...
1
2
3
4
5
...