NONLINEAR EVOLUTION OF ONE-DIMENSIONAL COSMOLOGICAL INHOMOGENEITIES

Authors
QUILIS V IBANEZ JM SAEZ D
Citation
V. Quilis et al., NONLINEAR EVOLUTION OF ONE-DIMENSIONAL COSMOLOGICAL INHOMOGENEITIES, Revista Mexicana de Astronomia y Astrofisica, 25(2), 1993, pp. 117-127
Citations number
29
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Revista Mexicana de Astronomia y Astrofisica → ACNP
ISSN journal
01851101
Volume
25
Issue
2
Year of publication
1993
Pages
117 - 127
Database
ISI
SICI code
0185-1101(1993)25:2<117:NEOOCI>2.0.ZU;2-X
Abstract
In this paper, we study the nonlinear evolution of one dimensional pre ssureless cosmological inhomogeneities. A high-resolution shock-captur ing algorithm has been used in order to solve the partial differential equations governing this evolution numerically. Linear initial condit ions have been considered. The analysis covers the epoch up to caustic formation. Our hydro-code has been tested in order to reproduce the Z el'dovich solution. Improvements and further extensions of this work a re discussed.