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Self-Similar Cosmological Models with a Cosmical Constant

Published online by Cambridge University Press:  03 August 2017

Robin M. Green  and
David Alexander
Robin M. Green
Affiliation:
Department of Physics and Astronomy, Glasgow University
David Alexander
Affiliation:
Department of Physics and Astronomy, Glasgow University

Extract

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The presence of the cosmical constant introduces a fundamental scale and prevents there being any simple self-symmetry. Henriksen, Emslie and Wesson (HEW), who studied spherically-symmetric models with a positive cosmical constant, have, however, demonstrated the possible existence of a self-similarity of the second kind and identified the similarity variable. They obtained interesting analytic solutions which are homogeneous in density, but not in pressure. We have extended this work and investigated the general behaviour of these cosmological models which possess a self-similarity of the second kind and in which the requirement of homogeneity is relaxed.

Type
Appendix 1: Poster Papers
Information
Symposium - International Astronomical Union , Volume 130: Large Scale Structures of the Universe , 1988 , pp. 516
Copyright
Copyright © Reidel 1988 

References

1. Henriksen, R.N., Emslie, A.G. and Wesson, P.S., Phys. Rev. D, 27, 1219 (1983)CrossRefGoogle Scholar
2. Alexander, D., Green, R.M. and Emslie, A.G. (1987) to be submitted to Astron. Astrophys.Google Scholar