Predictions from the logotropic model: The universal surface density of dark matter halos and the present proportions of dark matter and dark energy

@article{Chavanis2022PredictionsFT,
  title={Predictions from the logotropic model: The universal surface density of dark matter halos and the present proportions of dark matter and dark energy},
  author={Pierre-Henri Chavanis},
  journal={Physics of the Dark Universe},
  year={2022}
}
  • P. Chavanis
  • Published 15 January 2022
  • Physics
  • Physics of the Dark Universe

Figures from this paper

Black hole thermodynamics from logotropic fluids

We show that Einstein’s field equations with a negative cosmological constant can admit black hole solutions whose thermodynamics coincides with that of logotropic fluids, recently investigated to heal

New logotropic model based on a complex scalar field with a logarithmic potential

We introduce a new logotropic model based on a complex scalar field with a logarithmic potential that unifies dark matter and dark energy. The scalar field satisfies a nonlinear wave equation

Generalized Logotropic Models and Their Cosmological Constraints

We propose a new class of cosmological unified dark sector models called “Generalized Logotropic Models”. They depend on a free parameter n. The original logotropic model is a special case of our

K-Essence Lagrangians of Polytropic and Logotropic Unified Dark Matter and Dark Energy Models

We determine the k-essence Lagrangian of a relativistic barotropic fluid. The equation of state of the fluid can be specified in different manners depending on whether the pressure is expressed in

References

SHOWING 1-10 OF 103 REFERENCES

Nature 139

  • 323
  • 1937

Phys

  • Dark Univ. 24, 100271
  • 2019

Sitz

  • König. Preu. Akad. Wiss., 142
  • 1917

Astrophys

  • J. 447, L25
  • 1995

Zeit

  • J. Jost
  • Leibniz und die moderne Naturwissenschaft
  • 2019

New logotropic model based on a complex scalar field with a logarithmic potential

We introduce a new logotropic model based on a complex scalar field with a logarithmic potential that unifies dark matter and dark energy. The scalar field satisfies a nonlinear wave equation

Predictive model of fermionic dark matter halos with a quantum core and an isothermal atmosphere

We develop a thermodynamical model of fermionic dark matter halos at finite temperature. Statistical equilibrium states may be justified by a process of violent collisionless relaxation in the sense of

K-Essence Lagrangians of Polytropic and Logotropic Unified Dark Matter and Dark Energy Models

We determine the k-essence Lagrangian of a relativistic barotropic fluid. The equation of state of the fluid can be specified in different manners depending on whether the pressure is expressed in

A heuristic wave equation parameterizing BEC dark matter halos with a quantum core and an isothermal atmosphere

The Gross-Pitaevskii-Poisson equations that govern the evolution of self-gravitating Bose-Einstein condensates, possibly representing dark matter halos, experience a process of gravitational cooling

Jeans Instability of Dissipative Self-Gravitating Bose–Einstein Condensates with Repulsive or Attractive Self-Interaction: Application to Dark Matter

We study the Jeans instability of an infinite homogeneous dissipative self-gravitating Bose–Einstein condensate described by generalized Gross–Pitaevskii–Poisson equations [Chavanis, P.H. Eur. Phys.
...