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arXiv 0911.1124hep-phastro-ph.CO
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反质子和射电对银河系中心费米Gamma Ray观测暗物质解释的约束

Antiproton and Radio Constraints on the Dark Matter Interpretation of the Fermi Gamma Ray Observations of the Galactic Center

Torsten Bringmann

摘要:

最近,有人提出费米伽马射线太空望远镜从银河系中心方向观测到的伽马射线可以用暗物质湮灭的场景来描述,无论是在它们的角分布还是能谱方面。在这里,我指出,这样的情况将在相当大的紧张局势与现有的反质子数据,特别是新的PAMELA测量。无线电数据的局限性更大,因此不利于暗物质假设,并使观测结果的天体物理解释更加合理。

英文摘要:

Recently, it was suggested that the gamma rays observed by the Fermi Gamma Ray Space Telescope from the direction of the galactic center could surprisingly well be described by a dark matter annihilation scenario, both in terms of their angular distribution and energy spectrum. Here, I point out that such a scenario would be in considerable tension with existing antiproton data, in particular the new PAMELA measurements. Radio data are even more constraining, thus disfavoring the dark matter hypothesis and making an astrophysical explanation of the observations much more plausible.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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