Statistics – Computation
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.242..428m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 242, Feb. 1, 1990, p. 428-438. Research supported by SE
Statistics
Computation
30
Cosmology, Galactic Evolution, Red Shift, Computational Astrophysics, Gravitational Effects, Line Of Sight, Power Spectra, Spatial Distribution
Scientific paper
The relationships between structures in real and redshift space are discussed in the context of the hierarchical scenario. In particular, the formation and properties of caustics in redshift space are investigated. Redshift caustics are shown to be a generic feature of the gravitational-instability picture of galaxy formation. The anisotropy of the galaxy distribution in redshift space is also considered. It is shown that the elongation along the line of sight of the galaxy-galaxy redshift-space correlation function indicates that this function is dominated by galaxies in dynamically nonlinear regions. The elongation also suggests that the clustering is dynamical in origin, rather than just due to biasing; it, too, is likely to be dominated by galaxies in nonlinear regions on scales up to 10/h Mpc.
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