论文标题
2WHSP高合金峰的伽马射线对应物,可能是超高能量宇宙射线排放的签名
Gamma-ray counterparts of 2WHSP high-synchrotron-peaked BL Lac objects as possible signatures of ultra-high-energy cosmic-ray emission
论文作者
论文摘要
我们提出了一个搜索高能$γ$ ray的射击,从566个活跃的银河核$ z> 0.2 $,从高同步峰值Bl lac对象的2WHSP目录和八年的Fermi-LAT数据中。我们专注于红移范围,在该范围内,可以根据源的光谱特性将超高能量宇宙射线诱导的电磁级联发射与松性发射区分开。我们的分析导致在1-300 GEV Energy系列中检测到160个以上$ \ $ \ $5σ$(TS $ \ GEQ 25 $)的来源。通过基于其$γ$ ray的通量,可变性属性和光子指数在费米 - 拉特能量范围内区分重要来源,并在TEV制度中对预期的耐达信号进行建模,我们选择了有前途的候选源列表,作为潜在的候选候选超高的宇宙 - 宇宙射线射击力,以通过Imageing Alterecterics Cherescov teltescov teltescov telterescov telterescov teleccov。
We present a search for high-energy $γ$-ray emission from 566 Active Galactic Nuclei at redshift $z > 0.2$, from the 2WHSP catalog of high-synchrotron peaked BL Lac objects with eight years of Fermi-LAT data. We focus on a redshift range where electromagnetic cascade emission induced by ultra-high-energy cosmic rays can be distinguished from leptonic emission based on the spectral properties of the sources. Our analysis leads to the detection of 160 sources above $\approx$ $5σ$ (TS $\geq 25$) in the 1 - 300 GeV energy range. By discriminating significant sources based on their $γ$-ray fluxes, variability properties, and photon index in the Fermi-LAT energy range, and modeling the expected hadronic signal in the TeV regime, we select a list of promising sources as potential candidate ultra-high-energy cosmic-ray emitters for follow-up observations by Imaging Atmospheric Cherenkov Telescopes.