Boson stars and oscillatons in an inflationary universe

Author(s)
Mezei, Mark Koppany; Fodor, Gyula; Forgacs, Peter
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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.
Date issued
2010-08
URI
http://hdl.handle.net/1721.1/60854
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Fodor, Gyula, Peter Forgacs, and Mark Mezei. “Boson stars and oscillatons in an inflationary universe.” Physical Review D 82.4 (2010): 044043. © 2010 The American Physical Society.
Version: Final published version
ISSN
1550-7998
1550-2368
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