论文标题
在皮埃尔·奥赛天文台运行超过15年后,超高能量宇宙射线的科学
The science of ultra-high energy cosmic rays after more than 15 years of operation of the Pierre Auger Observatory
论文作者
论文摘要
Pierre Auger天文台已经检测到超高的能量宇宙射线(UHECR)已有15年以上。天文台的一个基本特征是其混合设计:通过观察具有不同和互补技术的相关空气淋浴,从表面检测器阵列和荧光望远镜到无线电天线,可以检测到高于$ 100〜 $ PEV的宇宙光线。对多探测器数据的分析已实现了对UHECRS的到达方向的能量光谱,质量组成和分布的高精度研究。总结在此贡献中总结了图片。虽然到目前为止尚未确定UHECRS的离散来源,但颗粒的外乳外层次起源最近是从高于8〜EEV的到达方向确定的,并且环在附近的天体物理位点附近,较高能量。同样,对UHE中微子和光子的通量的既定上限都对暗物质和宇宙学方面具有影响,这些方面也列于此贡献中。
The Pierre Auger Observatory has been detecting ultra-high energy cosmic rays (UHECRs) for more than fifteen years. An essential feature of the Observatory is its hybrid design: cosmic rays above $100~$PeV are detected through the observation of the associated air showers with different and complementary techniques, from surface detector arrays and fluorescence telescopes to radio antennas. The analyses of the multi-detector data have enabled high-statistics and high-precision studies of the energy spectrum, mass composition and distribution of arrival directions of UHECRs. The resulting picture is summarized in this contribution. While no discrete source of UHECRs has been identified so far, the extragalactic origin of the particles has been recently determined from the arrival directions above 8~EeV, and the ring is closing around nearby astrophysical sites at higher energies. Also, the established upper limits on fluxes of UHE neutrinos and photons have implications on dark matter and cosmological aspects that are also presented in this contribution.