4 papers
Dynamical friction shear and rotation in Chaplygin cosmology
A. Del Popolo, Saeed Fakhry, Maryam Shiravand +1
In this study, we build upon the findings of Del Popolo et al. (2013) by further analyzing the influence of dynamical friction on the evolution of cosmological perturbations within…
Diversity of Fuzzy Dark Matter Solitons
Chen Tan, M. Le Delliou, Ke Wang
According to the Schrödinger-Poisson equations, fuzzy dark matter (FDM) can form a stable equilibrium configuration, the so-called FDM soliton. In principle, given the FDM particle…
Model-independent Test of the Cosmic Anisotropy with Inverse Distance Ladder
Zong-Fan Yang, Da-Wei Yao, Ke Wang
If the Universe is endowed with cosmic anisotropy, it will have a preferred direction of expansion. Reconstructing the expansion history by Gaussian Process (GP) can be used to pro…
New insights on null and timelike warped symmetric spacetime splittings
Alan Maciel, Morgan Le Delliou, José P. Mimoso
We explore in detail the 2+2 and 1+1+2 formalism in spherically symmetric spacetimes, spanning from deducing the dynamical equations to relating them to the well-known generalised…