ar X iv : a st ro - p h / 99 03 32 7 v 1 2 3 M ar 1 99 9 Generating Non - Gaussian Adiabatic Fluctuations from Inflation

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 / 98 03 21 2 v 1 1 8 M ar 1 99 8 Anisotropy of CMB & Cosmological Model

In this brief review I will touch upon the main points and trends of observational and theoretical cosmology, that influence and change today our understanding of the Universe.

ar X iv : a st ro - p h / 99 03 39 2 v 1 2 5 M ar 1 99 9 The Question of the Peak Separation in the

We calculate gamma-ray spectra of pulsars for a set of electron acceleration models within the polar-cap scenario. We discuss our results in the light of the recent analysis (Kanbach 1999) of temporal properties of the Vela pulsar in the EGRET energy range.

ar X iv : a st ro - p h / 99 02 29 8 v 2 1 3 A pr 1 99 9 New limits on Ω Λ and Ω M from old galaxies at high redshift

ar X iv : a st ro - p h / 95 03 12 5 v 1 3 A pr 1 99 5 COURSE 1 COSMOLOGICAL DYNAMICS