Flattened halos in a nontopological soliton model of dark matter

Journal Article · Wed Dec 15 00:00:00 EST 2004 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.70.123509· OSTI ID:20698218

Mielke, Eckehard W; Peralta, Humberto H ^[1]

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1. Departamento de Fisica, Universidad Autonoma Metropolitana-Iztapalapa, Apartado Postal 55-534, C.P. 09340, Mexico, D.F. (Mexico)

Soliton type solutions of a scalar model with a {phi}{sup 6} self-interaction are analyzed for their density profiles as toy model of dark matter halos. We construct exact solutions with nontrivial ellipticity due to angular momentum and propose a 'nonlinear superposition' of round and flattened halos in order to improve the scaling relations and the correspondence of the predicted rotation curves to the empirical Burkert fit.

• OSTI ID: 20698218
• Journal Information: Physical Review. D, Particles Fields, Vol. 70, Issue 12; Other Information: DOI: 10.1103/PhysRevD.70.123509; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BASIC INTERACTIONS
COSMOLOGY
DENSITY
EXACT SOLUTIONS
GALAXIES
NONLINEAR PROBLEMS
NONLUMINOUS MATTER
QUANTUM FIELD THEORY
ROTATION
SCALARS
SOLITONS