The Cosmological Trajectories Method: Modelling cosmic structure formation in the non-linear regime

2 Feb 2021 F. C. Lane A. N. Taylor D. Sorini

We introduce a novel approach, the Cosmological Trajectories Method (CTM), to model nonlinear structure formation in the Universe by expanding gravitationally-induced particle trajectories around the Zel'dovich approximation. A new Beyond Zel'dovich approximation is presented, which expands the CTM to leading second-order in the gravitational interaction and allows for post-Born gravitational scattering... (read more)

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  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS