Perturbative Approximations to the Evolution of Plane Symmetric Cosmological Structures

Details Perturbative Approximations to the Evolution of Plane Symmetric Cosmological Structures Perturbative Approximations to the Evolution of Plane Symmetric Cosmological Structures

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.538r&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

The two main perturbative schemes for the non-linear evolution of large-scale structures are the Lagrangian and the Eulerian ones. The former has been set as a much more powerful technique, due to its property of yielding the exact solution in the plane-symmetric case. We have applied the Eulerian scheme to this plane symmetric case and have reached the exact solution as well, showing that it is not an exclusive property of the Zeldovich approximation, but that the planar symmetry is a quite special gravitational scenario. In addition, a new interpretation of the relationship between both formalisms is presented.

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