Third-order perturbative solutions in the Lagrangian perturbation theory with pressure II: Effect of the transverse modes

Details Third-order perturbative solutions in the Lagrangian perturbation theory with pressure II: Effect of the transverse modes Third-order perturbative solutions in the Lagrangian perturbation theory with pressure II: Effect of the transverse modes

2005-04-18

arxiv.org/abs/astro-ph/0504375v2

Phys.Rev. D72 (2005) 024005

Astronomy and Astrophysics

Astrophysics

10 pages, no figure; accepted for publication in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.72.024005

Lagrangian perturbation theory for cosmological fluid describes structure formation in the quasi-nonlinear stage well. In a previous paper, we presented a third-order perturbative equation for Lagrangian perturbation with pressure. There we considered only the longitudinal modes for the first-order perturbation. In this paper, we generalize the perturbation, i.e., we consider both the longitudinal and the transverse modes for the first-order perturbation. Then we derive third-order perturbative equations and solutions.

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