Optimizing Higher-order Lagrangian Perturbation Theory for Cold Dark Matter Models

Simple item page
dc.creatorWeiss, A. G.
dc.creatorGottloeber, S.
dc.creatorBuchert, T.
dc.date1995-12-15
dc.date.accessioned2026-07-07T02:20:38Z
dc.date.available2026-07-07T02:20:38Z
dc.descriptionWe report on the performance of Lagrangian perturbation theory up to the second order for the standard cold dark matter (SCDM) and broken scale invariance (BSI) scenarios. We normalize both models to the COBE data, the BSI model serves as an example of models which fit the small-scale power of galaxy surveys. We optimize Lagrangian perturbation solutions by removing small-scale power from the initial data and compare the results with those of numerical simulations. We find an excellent performance of the optimized Lagrangian schemes down to scales around the correlation length or smaller, depending on the statistics used for the comparison. The optimization scheme can be expressed in a way which is independent of the type of fluctuation spectrum and of the size of the simulations.
dc.description6 pages, uuencoded gzipped ps-file, 57 kByte Proc. ``Mapping, Measuring and Modelling the Universe'', Valencia 1995, eds.: P. Coles, V. Martinez, M. Pons, to be published by ASP
dc.identifierhttps://arxiv.org/abs/astro-ph/9512106
dc.identifierhttp://arxiv.org/abs/astro-ph/9512106
dc.identifierASP Conference Series (1996) 13-18
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10270
dc.subjectAstrophysics
dc.titleOptimizing Higher-order Lagrangian Perturbation Theory for Cold Dark Matter Models
dc.typetext

Files

Collections

arXiv