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Please use this identifier to cite or link to this item: http://hdl.handle.net/1860/1932

Title: Using Perturbative Least Action to recover cosmological initial conditons
Authors: Goldberg, David
Spergel, David
Keywords: Cosmology: Theory;Large Scale Structure Of Universe;Galaxies: Kinematics And Dynamics;Methods: N Body Simulations;Methods: Numerical
Issue Date: 17-Apr-2000
Publisher: American Astronomical Society
Citation: The Astrophysical Journal, 544: pp. 21.
Abstract: 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.
URI: http://arxiv.org/abs/astro-ph/9912408v2
Appears in Collections:Faculty Research and Publications (Physics)

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