Gravitationally induced particle production and its impact on structure formation

Abstract

In this paper we investigate the influence of a continuous particles creation processes on the linear and nonlinear matter clustering, and its consequences on the weak lensing effect induced by structure formation. We study the line of sight behavior of the contribution to the bispectrum signal at a given angular multipole $l$, showing that the scale where the nonlinear growth overcomes the linear effect depends strongly of particles creation rate.

arXiv comment14 pages, 12 figures, Published version in General Relativity and Gravitation. arXiv admin note: text overlap with arXiv:1503.04113; text overlap with arXiv:1204.3789, arXiv:astro-ph/0308118 by other authors

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