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Prog. Theor. Phys. Vol. 71 No. 5 (1984) pp. 938-945

[ Full Text PDF : FREE ACCESS (468K) ]

Expansion of Voids in a Matter-Dominated Universe

Yasushi Suto, Katsuhiko Sato and Humitaka Sato*

Department of Physics, University of Tokyo, Tokyo 113
*Research Institute for Fundamental Physics, Kyoto University, Kyoto 606

(Received December 20, 1983)

Abstract:

Evolution of voids in the Einstein-de Sitter universe is examined. Numerical calculations including matter pressure are performed in general relativistic method. A dense ridge is formed in the nonlinear stage, and its expansion law is approximated as t0.8 for mass compensated perturbations, and as t0.9 for mass deficient ones. Their expansion behaviour is almost independent of their size. If the sizes of the observed voids are in the range of (20∼100)h-1 Mpc, their sizes at recombination are in the range of (6∼30)Kpc or (0.02∼0.1)×(particle horizon size). It is concluded that the present observed voids require the fluctuations with |δρ/ρ| > 0.005 and size∼6.0×10-3 Mpc at the recombination. These values cannot be explained by the adiabatic scenario.


URL : http://ptp.ipap.jp/link?PTP/71/938/
DOI : 10.1143/PTP.71.938

[ Full Text PDF : FREE ACCESS (468K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 72 No. 2 (1984) pp. 216-232 :
    Nonlinear Growth of Density Contrast and Formation of Galaxies in a Neutrino-Dominated Universe
    Satoru Ikeuchi and Masayuki Umemura
  2. Progress of Theoretical Physics Vol. 72 No. 6 (1984) pp. 1137-1145 :
    Nonlinear Evolution of Negative Density Perturbations in a Radiation-Dominated Universe
    Yasushi Suto, Katsuhiko Sato and Humitaka Sato
  3. Progress of Theoretical Physics Vol. 73 No. 5 (1985) pp. 1151-1164 :
    Dynamical Evolution of Isothermal Density Perturbations in the Early Universe
    Yasushi Suto, Katsuhiko Sato and Hideo Kodama
  4. Progress of Theoretical Physics Vol. 89 No. 6 (1993) pp. 1193-1201 :
    Expanding Shell around a Void and Universe Model
    Nobuyuki Sakai, Kei-ichi Maeda and Humitaka Sato
  5. Progress of Theoretical Physics Vol. 93 No. 4 (1995) pp. 839-843 :
    Limits on the Gobal Hubble Constant and the Age of the Universe from the Local Hubble Constant Measurement
    Yasushi Suto, Tatsushi Suginohara and Yuichiro Inagaki

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