HESS观测到的银河系中心gamma ray发射的暗物质起源
Dark matter origin of the gamma ray emission from the galactic center observed by HESS
摘要：
我们发现，来自银河系中心（GC）区域的切伦科夫望远镜的HESS阵列观测到的伽马射线谱，并确定与源HESS J1745-290，是很好地拟合的二次光子来自暗物质（DM）湮灭在一个弥漫的幂律背景。定位在几个秒差距的区域内的光子的量和信号的形态，需要压缩的DM配置文件，因为那些从重子收缩，这提供了$\sim 10^3$的DM单独模拟的信号增强。HESS数据的拟合背景与同一地区最近的费米LAT观测结果一致。
英文摘要：
We show that the gamma ray spectrum observed with the HESS array of Cherenkov telescopes coming from the Galactic Center (GC) region and identified with the source HESS J1745-290, is well fitted by the secondary photons coming from dark matter (DM) annihilation over a diffuse power-law background. The amount of photons and morphology of the signal localized within a region of few parsecs, require compressed DM profiles as those resulting from baryonic contraction, which offer $\sim 10^3$ enhancements in the signal over DM alone simulations. The fitted background from HESS data is consistent with recent Fermi-LAT observations of the same region.
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