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Using Perturbative Least Action to Recover Cosmological Initial Conditions | | David M. Goldberg & David N. Spergel
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19 Dec 1999 | | Subject: | astro-ph | | Affiliation: | Princeton University) & David N. Spergel (Princeton University | | 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. | | Source: | arXiv, astro-ph/9912408 | | Services: | Forum | Review | PDF | Favorites | |
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