The galactic positron flux and dark matter substructures
The galactic positron flux and dark matter substructures
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DOI：
10.1088/1475-7516/2007/05/001
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发表时间：
2006-11
影响因子：
6.4
通讯作者：
Q. Yuan;X. Bi
中科院分区：
文献类型：
--
作者：
Q. Yuan;X. Bi
在本文中，我们计算了银河系的正电子流量的暗物质湮灭的超对称性的框架下，考虑到暗物质的子结构的存在的流量的增强。在一个现实的数值模型GALPROP中求解了正电子在银河磁场中的传播。在GALPROP模型中重新计算了次级正电子通量。当采用尖点密度剖面时，次级产物和暗物质湮灭产生的总正电子通量可以很好地拟合HEAT数据。
In this paper we calculate the galactic positron flux from dark matter annihilation in the framework of supersymmetry, taking the enhancement of the flux by the existence of dark matter substructures into account. The propagation of positrons in the galactic magnetic field is solved in a realistic numerical model GALPROP. The secondary positron flux is recalculated in the GALPROP model. The total positron flux from secondary products and dark matter annihilation can fit the HEAT data well when taking a cuspy density profile of the substructures.