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astro-ph2002★ 20 cited
Perturbation theory in Lagrangian hydrodynamics for a cosmological fluid with velocity dispersion
Takayuki Tatekawa, Momoko Suda, Kei-ichi Maeda +2
We extensively develop a perturbation theory for nonlinear cosmological dynamics, based on the Lagrangian description of hydrodynamics. We solve hydrodynamic equations for a self-g…
astro-ph2001★ 8 cited
Inhomogeneities in Newtonian Cosmology and its Backreaction to the Evolution of the Universe
Takayuki Tatekawa, Momoko Suda, Kei-ichi Maeda +1
We study an effect of inhomogeneity of density distribution of the Universe. We propose a new Lagrangian perturbation theory with a backreaction effect by inhomogeneity. The inhomo…