Boson stars and oscillatons in an inflationary universe
arXiv:1007.0388 · doi:10.1103/PhysRevD.82.044043
Abstract
Spherically symmetric gravitationally bound, oscillating scalar lumps (boson stars and oscillatons) are considered in Einstein's gravity coupled to massive scalar fields in 1+D dimensional de Sitter-type inflationary space-times. We show that due to inflation bosons stars and oscillatons lose mass through scalar radiation, but at a rate that is exponentially small when the expansion rate is slow.
arXiv comment19 pages, 5 figures
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