Lemaitre model and cosmic mass
arXiv:1506.06358 · doi:10.1007/s10714-015-1926-0
Abstract
The mass of a sphere of simmetry in the Lemaitre universe is discussed using the Hawking-Hayward quasi-local energy and clarifying existing ambiguities. A covariantly conserved current introduced by Cahill and McVittie is shown to be a multiple of the Kodama energy current.
10 pages, no figures, to appear in Gen. Rel. Gravit