Diffuse Inverse Compton and Synchrotron Emission from Dark Matter Annihilations Galactic Satellites.

Baltz, E. A. ; Wai, L.

Technical Information Center Oak Ridge Tennessee

关键词: Dark matter;    Positron annihilation;    Satellites;    Photons;    Stars;   

RP-ID  :  DE2004826862

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Annihilating dark matter particles produce roughly as much power in electrons and positrons as in gamma ray photons. The charged particles lose essentially all of their energy to inverse Compton and synchrotron processes in the galactic environment. We discuss the diffuse signature of dark matter annihilations in satellites of the Milky Way (which may be optically dark with few or no stars), providing a tail of emission trailing the satellite in its orbit. Inverse Compton processes provide X-rays and gamma rays, and synchrotron emission at radio wavelengths might be seen. We discuss the possibility of detecting these signals with current and future observations, in particular EGRET and GLAST for the gamma rays.