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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