Expanding Shell around a Void and Universe Model

Details Expanding Shell around a Void and Universe Model Expanding Shell around a Void and Universe Model

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pthph..89.1193s&link_type=abstract

Progress of Theoretical Physics, Vol. 89, No. 6, pp. 1193-1201.

Physics

9

Scientific paper

Under the thin-shell approximation, we study the expansion of the shell formed around a single spherical void in the dust universe. We find that the peculiar velocity of the shell is determined mostly by the density parameter Ω0. It also depends on the interior dust energy density, but is not so sensitive to a cosmological constant. This feature may open a possibility of determining the universe model from the surface motion of voids.

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