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Theoretical and Observational Implications of a Super-Horizon-Scale Inhomogeneous Cosmological Model

Published online by Cambridge University Press:  25 May 2016

K. Tomita
K. Tomita*
Affiliation:
Yukawa Institute for Theoretical Physics Kyoto University, Kyoto, 606-01, Japan

Extract

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We discuss the theoretical and observational implications of an inhomogeneous cosmological model consisting of three regions: the inner low-density homogeneous region, the self-similar (or partially similar) inhomogeneous region and the outer nearly flat homogeneous region. When we assume Einstein's gravitational theory without cosmological constant, the standard inflation theory, and the observational fact of local low density around us, this model is found to be reasonable. The boundary between the inner region and the self-similar region is assumed to be in a spherical shell corresponding to the epoch of redshift z = 1.5–2.0, when the numbers of QSOs and Ly α clouds changed rapidly.

Type
IV. Structure Formation and Dark Matter
Information
Symposium - International Astronomical Union , Volume 183: Cosmological Parameters and the Evolution of the Universe , 1999 , pp. 270
Copyright
Copyright © Kluwer 1999 

References

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