Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phdt........12s&link_type=abstract
Ph.D. Thesis Princeton Univ., NJ.
Astronomy and Astrophysics
Astronomy
3
Agglomeration, Astrodynamics, Astronomical Models, Galactic Clusters, Statistical Correlation, Virial Theorem, Hubble Diagram, Intergalactic Media, Red Shift, Spatial Distribution, Velocity Distribution
Scientific paper
Velocity and spatial correlation functions are used to measure observables of clustering as a whole so that it is not necessary to decide on an individual basis which galaxies are grouped together in space. The model simulations of Soniera and Peebles are extensively compared to the real universe. It is shown that (1) there are very large systematic errors involved in the traditional method of applying the Virial Theorem using groups of galaxies, (2) on the average, clustered galaxies are stable associations in virial equilibrium for scales extending out to a at least 7 h/1 Mpc (h is Hubble's constant in units of 100 km/sec/Mpc); and (3) there is evidence that on galactic scales, gravity is an inverse square-law force and that almost all matter is spatially distributed like galaxies in a clustering hierarchy on scales approximately less than 7h/1 Mpc.
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