Microwave background anisotropies and large-scale structure in universes with cold dark matter, baryons, radiation, and massive and massless neutrinos

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Astrophysical Journal, Supplement Series; (USA)

DOI:https://doi.org/10.1086/191362· OSTI ID:5246785

Holtzman, J A ^[1]

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1. California Univ., Santa Cruz (USA)

Calculations of microwave backgrond anisotropies at various angular scales and of expected large-scale bulk velocities and mass correlation functions are presented for a variety of models which include baryons, radiation, cold dark matter (CDM), and massive and massless neutrinos. Nearly 100 different models are considered. Open and flat models with both adiabatic and isocurvature initial conditions are calculated for models without massive neurinos. A set of flat models with both massive neutrinos and CDM with adiabatic initial conditions is also considered. Fitting functions for the mass transfer function and small-angle radiation correlation function are provided for all of the models. A discussion of the evolution of the perturbations is presented. Results are compared with some recent observations of large-scale velocities and limits on microwave background anisotropies. CDM and baryon models have difficulty satisfying observational limits, although they are not completely ruled out. Hybrid models with massive neutrinos and CDM satisfy current observational data. 42 refs.

• OSTI ID: 5246785
• Journal Information: Astrophysical Journal, Supplement Series; (USA), Journal Name: Astrophysical Journal, Supplement Series; (USA) Vol. 71; ISSN APJSA; ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
ANISOTROPY
BACKGROUND RADIATION
BARYONS
COSMOLOGICAL MODELS
COSMOLOGY
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LEPTONS
MASS DISTRIBUTION
MASSLESS PARTICLES
MATHEMATICAL MODELS
MICROWAVE RADIATION
NEUTRINOS
NONLUMINOUS MATTER
RADIATIONS
RELICT RADIATION
SPATIAL DISTRIBUTION
UNIVERSE