On the relativistic mass function and averaging in cosmology
Cosmology and Nongalactic Astrophysics
2017-12-27 v1
Abstract
The general relativistic description of cosmological structure formation is an important challenge from both the theoretical and the numerical point of views. In this paper we present a brief prescription for a general relativistic treatment of structure formation and a resulting mass function on galaxy cluster scales in a highly generic scenario. To obtain this we use an exact scalar averaging scheme together with the relativistic generalization of Zel'dovich's approximation (RZA) that serves as a closure condition for the averaged equations.
Cite
@article{arxiv.1602.00302,
title = {On the relativistic mass function and averaging in cosmology},
author = {Jan J. Ostrowski and Thomas Buchert and Boudewijn F. Roukema},
journal= {arXiv preprint arXiv:1602.00302},
year = {2017}
}
Comments
Contribution to the proceedings of MG14