Inflationary Universe, Primordial Sound Waves and Galaxy Formation

Strong Primordial Inhomogeneities and Galaxy Formation

The new element of theory of galaxy formation, strong primordial inhomogeneities, is shown to be a reflection of unstable large scale structures of topological defects, created in second order phase transitions in the inflationary Universe. In addition to archioles-like large scale correlation of the primordial inhomogeneity of energy density of coherent scalar field oscillations, the same mech...

CBR anisotropy from primordial gravitational waves in inflationary cosmologies.

We examine stochastic temperature fluctuations of the cosmic background radiation (CBR) arising via the Sachs-Wolfe effect from gravitational wave perturbations produced in the early universe. These temperature fluctuations are described by an angular correlation function C(γ). A new (more concise and general) derivation of C(γ) is given, and evaluated for inflationary-universe cosmologies. Thi...

Primordial Galaxy Formation and IGM Reionization

In this talk I will present a model for primordial galaxy formation. In particular, I will review the feedback effects that regulate the process: (i) radiative (i.e. ionizing and H2–photodissociating photons) and (ii) stellar (i.e. SN explosions) feedback produced by massive stars. I will show the results of a model for galaxy formation and IGM reionization, which includes a self-consistent tre...

Universe: Simulations of Structure and Galaxy Formation

Formation of MACHO-Primordial Black Holes in Inflationary Cosmology

As a nonbaryonic explanation of massive compact halo objects, a phenomenological model is presented which predicts formation of primordial black holes at a desired mass scale. The required feature of initial density fluctuation is realized making use of the primordially isocurvature fluctuation generated in an inflationary universe model with multiple scalar fields.