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Ryu, Dongsu
Astrophysics Lab
Research Interests
  • Shock waves and turbulence in clusters of galaxies
  • Origin and evolution of magnetic fields and cosmic rays in the universe
  • Plasma astrophysical phenomena in the large-scale structure of the universe

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GALAXY CORRELATION IN A BUBBLY UNIVERSE

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Title
GALAXY CORRELATION IN A BUBBLY UNIVERSE
Author
Ryu, Dongsu
Issue Date
1992-12
Publisher
한국천문학회
Citation
Publications of The Korean Astronomical Society, v.7, no.1, pp.25 - 30
Abstract
Recent redshift surveys suggest that most galaxies may be distributed on the surfaces of bubbles surrounding large voids. To investigate the quantitative consistency of this qualitative picture of large-scale structure, we study analytically the clustering properties of galaxies in a universe filled with spherical shells. In this paper, we report the results of the calculations for the spatial and angular two-point correlation functions of galaxies. With of galaxies in clusters and a power law distribution of shell sizes, , , the observed slope and amplitude of the spatial two-point correlation function can be reproduced. (It has been shown that the same model parameters reproduce the enhanced cluster two-point correlation function, ). The corresponding angular two-point correlation function is calculated using the relativistic form of Limber's equation and the Schecter-type luminosity function. The calculated w() agrees with the observed one quite well on small separations ().
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ISSN
1225-1534
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