Boson stars and oscillatons in an inflationary universe

被引：17
作者：
Fodor, Gyula [1 ]
Forgacs, Peter [1 ,2 ]
Mezei, Mark [3 ]
机构：
[1] MTA RMKI, H-1525 Budapest 114, Hungary
[2] Univ Tours, CNRS, UMR 6083, LMPT, F-37200 Tours, France
[3] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW D | 2010年 / 82卷 / 04期
关键词：
BREATHER SOLUTIONS; FIELD-THEORIES; OSCILLONS; ENERGY;
D O I：
10.1103/PhysRevD.82.044043
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
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页数：19
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