Luminous Matter Distribution, Bulk Flows and Baryon Contents in Cosmological Models with a Local Void

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  • 12 March 2002
Abstract
First galaxy formation is discussed from the viewpoint of hierarchical clustering theory and it is shown that inhomogeneous models with a local void may be compatible with the observed homogeneity of galactic distributions given by recent redshift surveys, because of the difference in the feedback system of galaxy formation in the inner and outer regions. Next it is shown that the observed inhomogeneity of two-point correlations of galaxies can be explained in these models using numerical simulations, and the natural appearance of bulk flows for an off-central observer is shown. Finally the inhomogeneity of baryon contents is discussed from the viewpoint of our inhomogeneous models.

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