Large-scale structure and microwave-background anisotropies in cosmological models and stellar photometry techniques with wide-field/planetary camera of the Hubble space telescope

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6576623

Holtzman, J A

This dissertation consists of two separate parts. The first presents calculations of microwave background anisotropies at various angular scales and of expected large scale bulk velocities and mass correlation functions for a variety of models which include baryons, radiation, cold dark matter (CDM), and massive and massless neutrinos. Free parameters include {Omega}, H{sub 0}, the mass fractions of each component, and the initial conditions; nearly 100 different models are considered. Open and flat models with blot adiabatic and isocurvature initial conditions are calculated for models without massive neutrinos. 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. The second part of the dissertation is a discussion with the Wide Field/Planetary Camer (WF/PC) of the Hubble Space Telescope (HST). Detailed simulations are used to determine optimum techniques to use and to assess the expected accuracy of such techniques.

• Research Organization: California Univ., Santa Cruz, CA (USA)
• OSTI ID: 6576623
• Country of Publication: United States
• Language: English

Related Subjects

640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
ANISOTROPY
BARYONS
COMPARATIVE EVALUATIONS
CORRELATION FUNCTIONS
COSMOLOGICAL MODELS
DATA PROCESSING
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
LEPTONS
MASS DISTRIBUTION
MASSLESS PARTICLES
MATHEMATICAL MODELS
MICROWAVE RADIATION
NEUTRINOS
NONLUMINOUS MATTER
OPTIMIZATION
PHOTOMETRY
PROCESSING
RADIATIONS
RELICT RADIATION
SATELLITES
SPATIAL DISTRIBUTION
STARS
TELESCOPES
UNIVERSE
VELOCITY