ar X iv : a st ro - p h / 99 11 03 5 v 1 3 N ov 1 99 9 Top - Down Models and Extremely High Energy Cosmic Rays

ar X iv : a st ro - p h / 99 11 03 5 v 2 1 9 N ov 1 99 9 Top - Down Models and Extremely High Energy Cosmic Rays

We developed numerical code for calculation of the extragalactic component of the spectra of leptons, nucleons and γ-rays resulting from " top-down " (non-acceleration) models for the case of uniform and isotropic source distribution. We explored two different classes of " top-down " scenarios: the wide earlier investigated class of X particles coming from collapse and/or annihilation of cosmic...

ar X iv : a st ro - p h / 99 11 03 5 v 3 1 D ec 1 99 9 Top - Down Models and Extremely High Energy Cosmic Rays

We developed numerical code for calculation of the extragalactic component of the spectra of leptons, nucleons and γ-rays resulting from " top-down " (non-acceleration) models for the case of uniform and isotropic source distribution. We explored two different classes of " top-down " scenarios: the wide earlier investigated class of X particles coming from collapse and/or annihilation of cosmic...

ar X iv : a st ro - p h / 99 11 49 7 v 1 2 9 N ov 1 99 9 Cosmic Microwave Background Anisotropies : Inflation versus Topological Defects

I present a briefly summary of the current status of inflationary models versus topological defects scenarios, as the mechanisms which could have induced the initial density perturbations, which left an imprint on the cosmic microwave backgound radiation anisotropies.

ar X iv : a st ro - p h / 96 11 14 3 v 1 1 9 N ov 1 99 6 A high deuterium abundance in the early Universe

ar X iv : a st ro - p h / 97 11 24 4 v 1 2 0 N ov 1 99 7 POPULATION SYNTHESIS OF HIGH ENERGY TRANSIENTS RELATIVISTIC BINARY MERGING RATES