ar X iv : a st ro - p h / 94 01 02 3 v 1 1 4 Ja n 19 94 AZPH - TH / 93 - 5 Stochastic Fluctuations and Structure Formation in the Universe

ar X iv : a st ro - p h / 94 11 01 3 v 1 3 N ov 1 99 4 Application of Gradient Expansion to Inflationary Universe

Using the long wave perturbation scheme(gradient expansion), the effect of inhomogeneity on the inflationary phase is investigated. We solved the perturbation equation of which source term comes from inhomogeneity of a scalar field and a seed metric. The result indicates that sub-horizon scale inhomogeneity strongly affects the onset of inflation.

ar X iv : a st ro - p h / 02 07 01 3 v 1 3 0 Ju n 20 02 Fine tuning of parameters of the universe

The mechanism of production of a large number of universes is considered. It is shown that universes with parameters suitable for creation of life are necessarily produced as a result of quantum fluctuations. Fractal structures are formed provided fluctuations take place near a maximum of the potential. Several ways of formation of similar fractal structures within our universe are discussed. T...

ar X iv : a st ro - p h / 97 01 22 8 v 1 2 9 Ja n 19 97 Large - scale Structures revealed by Wavelet Decomposition 1

ar X iv : a st ro - p h / 96 01 12 9 v 1 2 3 Ja n 19 96 Is Her X - 1 a strange star

The possible identification of Her X-1 with a strange star (Li et al. 1995) is shown to be incorrect.

ar X iv : a st ro - p h / 02 01 47 6 v 1 2 9 Ja n 20 02 The Most Luminous Galaxies

Ultraluminous galaxies in the local universe (z≤0.2) emit the bulk of their energy in the mid and far-infrared. The multiwavelength approach to these objects has shown that they are advanced mergers of gas-rich spiral galaxies. Galaxy-galaxy collisions took place on all cosmological time-scales, and nearby mergers serve as local analogs to gain insight into the physical processes that lead to t...