The formation of galaxies and quasars in a texture-seeded cold dark matter cosmogony

Journal Article · Wed May 01 00:00:00 EDT 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/186010· OSTI ID:5515640

Gooding, A K; Turok, N; Spergel, D N ^[1]

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1. Princeton University, NJ (USA) Princeton University Observatory, NJ (USA)

The nonGaussian perturbations produced by global texture lead to the early formation of stars, quasars, and galaxies. Growth of the density fluctuation in cold dark matter induced by the unwinding of a texture 'knot' is calculated and the evolution of the mass multiplicity function in this galaxy formation model is determined. By z of about 50, about 3 percent of the mass of the universe has formed nonlinear objects of mass greater than 10 to the 6th solar masses - these objects may have reionized the universe. Most objects larger than 10 to the 12th solar masses form by z about 2-3, consistent with the observed epoch of QSO formation. Today, about 35 percent of the mass of the universe is in bound objects of mass greater than 10 to the 12th solar masses. It is found that the slope and the amplitude of the multiplicity function is consistent with the observed galaxy luminosity function. 24 refs.

• OSTI ID: 5515640
• Journal Information: Astrophysical Journal; (United States), Vol. 372; Other Information: L5-L8. Research supported by Alfred P. Sloan Foundation; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGY
GALACTIC EVOLUTION
BARYONS
COMPUTERIZED SIMULATION
COSMOLOGICAL MODELS
MASS DISTRIBUTION
NONLUMINOUS MATTER
PERTURBATION THEORY
QUASARS
STAR EVOLUTION
UNIVERSE
COSMIC RADIO SOURCES
DISTRIBUTION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MATHEMATICAL MODELS
MATTER
SIMULATION
SPATIAL DISTRIBUTION
640106* - Astrophysics & Cosmology- Cosmology