Cosmic strings, hot dark matter and the large-scale structure of the universe

Journal Article · Thu May 10 04:00:00 EDT 1990 · International Journal of Modern Physics A; (USA)

DOI:https://doi.org/10.1142/S0217751X9000074X· OSTI ID:5930341

Brandenberger, R H; Perivolaropoulos, L ^[1]; Stebbins, A ^[2]

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1. Brown Univ. Physics Dept., Providence, RI (US)
2. Canadian Inst. of Advanced research, Canadian Inst. for Theoretical Astrophysics, Univ. of Toronto, Toronto, Ontario M5S 1A7 (CA)

A review of recent results on large-scale structure and galaxy formation in a model with hot dark matter and cosmic strings is given. With cosmic strings seeding perturbations, many of the arguments against hot dark matter disappear. It is shown that spherical accretion about loops leads to dark matter haloes with flat velocity rotation curves. Velocity perturbations due to wakes behind long, moving strings lead to a network of planar overdensities with a distinguished scale of slightly less than 40 {times} 40 Mpc{sup 2}. If the mass per unit length {mu} exceeds a certain bound, then the wakes become nonlinear by the present time. In this case, their thickness can be calculated.

• OSTI ID: 5930341
• Journal Information: International Journal of Modern Physics A; (USA), Journal Name: International Journal of Modern Physics A; (USA) Vol. 5:9; ISSN IMPAE; ISSN 0217-751X
• Country of Publication: United States
• Language: English

Related Subjects

640105 -- Astrophysics & Cosmology-- Galaxies
640106 -- Astrophysics & Cosmology-- Cosmology
645400* -- High Energy Physics-- Field Theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPOSITE MODELS
EXTENDED PARTICLE MODEL
GALACTIC EVOLUTION
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
NONLUMINOUS MATTER
ORIGIN
PARTICLE MODELS
QUARK MODEL
STAR ACCRETION
STAR EVOLUTION
STRING MODELS
UNIVERSE