On Gravitational Repulsion
广义相对论与量子宇宙学
2015-06-25 v1
摘要
The concepts of negative gravitational mass and gravitational repulsion are alien to general relativity. Still, we show here that small negative fluctuations - small dimples in the primordial density field - that act as if they have an effective negative gravitational mass, play a dominant role in shaping our Universe. These initially tiny perturbations repel matter surrounding them, expand and grow to become voids in the galaxy distribution. These voids - regions with a diameter of Mpc which are almost devoid of galaxies - are the largest object in the Universe.
引用
@article{arxiv.gr-qc/9706049,
title = {On Gravitational Repulsion},
author = {Tsvi Piran},
journal= {arXiv preprint arXiv:gr-qc/9706049},
year = {2015}
}
备注
10 pages, lates with 2 figures. Third prize in 1997 Gravity essay competition. ALso available from ftp://shemesh.fiz.huji.ac.il and http://shemesh.fiz.huji.ac.il