2012/10/31 by Jai-chan Hwang, Hyerim Noh · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmological perturbation theory #Cosmology #Cosmology and Gravitation Theories #Gauge (firearms) #Newtonian fluid #Newtonian limit #Noncommutative and Quantum Gravity Theories #Nonlinear system #Perturbation (astronomy) #Perturbation theory (quantum mechanics) #astro-ph.CO #gr-qc
paper · pdf · doi:10.1088/1475-7516/2013/04/035
12 Pages, appeared in JCAP
openalex publication_date 2013/04/15 · arxiv created 2013/07/01 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We prove that in the infinite speed-of-light limit (i.e., non-relativistic and subhorizon limits), the relativistic fully nonlinear cosmological perturbation equations in two gauge conditions, the zero-shear gauge and the uniform-expansion gauge, exactly reproduce the Newtonian hydrodynamic perturbation equations in the cosmological background; as a consequence, in the same two gauge conditions, the Newtonian hydrodynamic equations are exactly recovered in the Minkowsky background.