The large-scale peculiar velocity field in flat models of the universe

Technical Report · Wed Oct 01 04:00:00 EDT 1986

DOI:https://doi.org/10.2172/6926044· OSTI ID:6926044

Vittorio, N; Turner, M S

The inflationary Universe scenario predicts a flat Universe and both adiabatic and isocurvature primordial density perturbations with the Zel'dovich spectrum. The two simplest realizations, models dominated by hot or cold dark matter, seem to be in conflict with observations. Flat models are examined with two components of mass density, where one of the components of mass density is smoothly distributed and the large-scale (greater than or equal to10h/sup -1/ MpC) peculiar velocity field for these models is considered. For the smooth component relativistic particles, a relic cosmological term, and light strings are considered. At present the observational situation is unsettled; but, in principle, the large-scale peculiar velocity field is very powerful discriminator between these different models. 61 refs.

• Research Organization: California Univ., Berkeley (USA). Dept. of Astronomy; Fermi National Accelerator Lab., Batavia, IL (USA); Chicago Univ., IL (USA). Enrico Fermi Inst.
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 6926044
• Report Number(s): FNAL/Pub-86/79-A; ON: DE87005402
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
COMPOSITE MODELS
COSMIC NEUTRINOS
COSMIC RADIATION
COSMOLOGICAL MODELS
DENSITY
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
IONIZING RADIATIONS
LEPTONS
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE MODELS
PHYSICAL PROPERTIES
QUARK MODEL
RADIATIONS
STRING MODELS
VELOCITY