Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-12-19
Astrophys.J.544:21,2000
Astronomy and Astrophysics
Astrophysics
24 pages, 6 postscript figures. Accepted for publication in Astrophysical Journal
Scientific paper
10.1086/317182
We introduce a new method for generating initial conditions consistent with highly nonlinear observations of density and velocity fields. Using a variant of the Least Action method, called Perturbative Least Action (PLA), we show that it is possible to generate several different sets of initial conditions, each of which will satisfy a set of highly nonlinear observational constraints at the present day. We then discuss a code written to test and apply this method and present the results of several simulations.
Goldberg David M.
Spergel David N.
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