An integral constraint for the evolution of the galaxy two-point correlation function

Details An integral constraint for the evolution of the galaxy two-point correlation function An integral constraint for the evolution of the galaxy two-point correlation function

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....53..131p&link_type=abstract

Astronomy and Astrophysics, vol. 53, no. 1, Nov. 1976, p. 131-140. Research supported by the Alfred P. Sloan Foundation and NSF

Astronomy and Astrophysics

Astrophysics

67

Astronomical Models, Cosmology, Galactic Evolution, Universe, Computerized Simulation, Correlation, Expansion, Many Body Problem, Mathematical Models, Perturbation Theory

Scientific paper

Under some conditions an integral over the galaxy two-point correlation function evolves with the expansion of the Universe in a simple manner easily computed from linear perturbation theory. This provides a useful constraint on the possible evolution of the two-point correlation function itself. The integral constraint is tested with both an analytic model and numerical N-body simulations for the evolution of irregularities in an expanding Universe. Some applications are discussed.

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