Halos of Unified Dark Matter Scalar Field

Abstract

We investigate the static and spherically symmetric solutions of Einstein's equations for a scalar field with non-canonical kinetic term, assumed to provide both the dark matter and dark energy components of the Universe. In particular, we give a prescription to obtain solutions (dark halos) whose rotation curve v_c(r) is in good agreement with observational data. We show that there exist suitable scalar field Lagrangians that allow to describe the cosmological background evolution and the static solutions with a single dark fluid.

arXiv comment19 pages LaTeX file; minor corrections made affecting Eqs.(52)-(56)

References in corpus (51)

• A Universal Density Profile from Hierarchical Clustering
• An alternative to quintessence
• Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
• The Structure of Dark Matter Haloes in Dwarf Galaxies
• Cold collapse and the core catastrophe
• Perturbations in k-inflation
• The Inner Structure of LambdaCDM Halos III: Universality and Asymptotic Slopes
• Unification of Dark Matter and Dark Energy: the Inhomogeneous Chaplygin Gas
• Cluster Abundance Constraints on Quintessence Models
• Purely kinetic k-essence as unified dark matter
• Can the clustered dark matter and the smooth dark energy arise from the same scalar field ?
• Action functionals for relativistic perfect fluids
• Dark Matter Scaling Relations
• k-Essence, superluminal propagation, causality and emergent geometry
• The end of unified dark matter?
• The cosmon model for an asymptotically vanishing time-dependent cosmological ``constant''
• Structure Formation with Generalized Dark Matter
• Tachyons, Scalar Fields and Cosmology
• New Relationships between Galaxy Properties and Host Halo Mass, and the Role of Feedbacks in Galaxy Formation
• WMAP and the Generalized Chaplygin Gas
• Generalized Chaplygin gas and CMBR constraints
• WMAP Constraints on the Generalized Chaplygin Gas Model
• Constraints on the generalized Chaplygin gas from supernovae observations
• Galactic Halos As Boson Stars
• Cosmological consequences of a Chaplygin gas dark energy
• Scalar Fields as Dark Matter in Spiral Galaxies
• Dynamics of $k$-essence
• Galactic Halos of Fluid Dark Matter
• Cosmological Effects of a Class of Fluid Dark Energy Models
• Haloes of k-Essence
• High-redshift objects and the generalized Chaplygin gas
• Born-Infeld Phantom Gravastars
• Galactic Potentials
• Inflation, dark matter and dark energy in the string landscape
• Unified Dark Matter in Scalar Field Cosmologies
• Dark Fluid: a complex scalar field to unify dark energy and dark matter
• Cosmological constraints on quintessential halos
• Stability properties of some perfect fluid cosmological models
• Combining rotation curves and gravitational lensing: How to measure the equation of state of dark matter in the galactic halo
• Modelling galaxy halos using dark matter with pressure
• $\Lambda \alpha$DM: Observational constraints on unified dark matter with constant speed of sound
• Cosmon dark matter?
• Challenges for Kinetic Unified Dark Matter
• Affine equation of state from quintessence and k-essence fields
• Relativistic hydrodynamics with sources for cosmological K-fluids
• Dark Matter and Dark Energy from the solution of the strong CP problem
• ISW effect in Unified Dark Matter Scalar Field Cosmologies: an analytical approach
• The Homogeneous Scalar Field and the Wet Dark Sides of the Universe
• Are Galaxies Cosmon Lumps?
• Unification of Dark Energy and Dark Matter
• Galactic halos and gravastars: static spherically symmetric spacetimes in modern general relativity and astrophysics

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• Galactic rotation curves in hybrid metric-Palatini gravity
• How the Scalar Field of Unified Dark Matter Models Can Cluster
• Unified Dark Matter models with fast transition
• Stationary Configurations Imply Shift Symmetry: No Bondi Accretion for Quintessence / k-Essence
• Unified Dark Matter scalar field models with fast transition
• Cosmic acceleration in non-canonical scalar field model - An interacting scenario
• Braneworld in $f(T)$ Gravity Theory with Noncanonical Scalar Matter Field
• Testing generalized logotropic models with cosmic growth
• Phenomenological models for Unified Dark Matter with fast transition
• Unimodular bimode gravity and the coherent scalar-graviton field as galaxy dark matter
• CMB-Galaxy correlation in Unified Dark Matter Scalar Field Cosmologies
• No-go theorem for static scalar field dark matter halos with no Noether charges
• Multi-fluid cosmology in Einstein gravity: analytical solutions
• Solving the Cusp-Core Problem with a Novel Scalar Field Dark Matter
• A study of interacting scalar field model from the perspective of the dynamical systems theory
• Non-minimally Coupled Tachyon Field in Teleparallel Gravity
• Galactic Halos and Black Holes in Non-Canonical Scalar Field Theories
• Variational symmetries and superintegrability in multifield cosmology