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

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

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apjs...71....1h&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 71, Sept. 1989, p. 1-24.

Astronomy and Astrophysics

Astrophysics

257

Baryons, Cosmology, Dark Matter, Neutrinos, Relic Radiation, Anisotropy, Background Radiation, Curvature, Microwaves, Universe

Scientific paper

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.

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