Lagrangian perturbation theory - A key-model for large-scale structure

Details Lagrangian perturbation theory - A key-model for large-scale structure Lagrangian perturbation theory - A key-model for large-scale structure

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...267l..51b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 267, no. 2, p. L51-L54.

Mathematics

30

Astronomical Models, Cosmology, Galactic Evolution, Perturbation, Collisionless Plasmas, Lagrangian Function, Singularity (Mathematics)

Scientific paper

The two currently used analytical models for large-scale structure are examined with consideration given to their drawbacks: the Zel'dovich (1970) approximation and the extension to the 'adhesion approximation' (Gurbatov et al. (1989); Shandarin and Zeldovich (1989)). Then, the Lagrangian perturbation theory is presented to provide a key alternative. Several available models are discussed in the framework of numerical simulations.

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