AXION MINICLUSTERS AND BOSE STARS

被引：314

作者：

KOLB, EW

TKACHEV, II

机构：

[1] RUSSIAN ACAD SCI,INST NUCL RES,MOSCOW 117312,RUSSIA

[2] UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.71.3051

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Evolution of inhomogeneities in the axion field around the QCD epoch is studied numerically, including for the first time important nonlinear effects. It is found that perturbations on scales corresponding to causally disconnected regions at T approximately 1 GeV can lead to very dense axion clumps, with present density rho(a) greater than or similar to 10(-8) g cm-3. This is high enough for the collisional 2a --> 2a process to lead to Bose-Einstein relaxation in the gravitationally bound clumps of axions, forming Bose stars.

引用

页码：3051 / 3054

页数：4

共 16 条

[1] COLD BOSE STARS [J].