Toroidal halos in a nontopological soliton model of dark matter

被引：8
|
作者：
Mielke, Eckehard W. [1 ]
Velez Perez, Jose A. [1 ]
机构：
[1] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico
来源：
PHYSICAL REVIEW D | 2007年 / 75卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.75.043504
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Soliton type solutions of an axionlike scalar model with self-interaction are analyzed further as a toy model of dark matter halos. For a "nonlinear superposition" of round and flattened configurations we found ringlike substructures in the density profile similarly as has been inferred for our Galaxy from the observed excess of the diffuse component of cosmic gamma rays.
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页数：6
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