2006/02/28 by Shahram Khosravi, Samad Khakshournia, Reza Mansouri · 1 citation
Physics and Astronomy · #gr-qc
paper · pdf · doi:10.1088/0264-9381/23/20/014
published as Class.Quant.Grav. 23 (2006) 5927-5940 · 8 pages, 1 figure
arxiv created 2006/09/30 · arxiv updated 2009/12/01
We generalize our previous thick shell formalism to incorporate any codimension-1 thick wall with a peculiar velocity and proper thickness bounded by arbitrary spacetimes. Within this new formulation we obtain the equation of motion of a spherically symmetric dust thick shell immersed in vacuum as well as in Friedmann-Robertson-Walker spacetimes.