4 papers
Evidence for the Sombrero Galaxy as an Accelerator of the Highest-Energy Cosmic Rays
Hao-Ning He, Eiji Kido, Kai-Kai Duan +12
Ultrahigh-energy cosmic rays (UHECRs) are the highest energy messenger from space, with energies exceeding 1 EeV. Although UHECRs were discovered over 60 years ago, their origin st…
Ultrahigh-Energy Gamma-ray Emission Associated with Black Hole-Jet Systems
The LHAASO Collaboration, Zhen Cao, Felix Aharonian +315
Black holes (BH), one of the most intriguing objects in the universe, can manifest themselves through electromagnetic radiation initiated by the accretion flow. Some stellar-mass B…
Evidence for a GeV -ray line signal in a stacking analysis of the Virgo, Fornax, and Ophiuchus Galaxy clusters
Yi-Zhong Fan, Zhao-Qiang Shen, Yun-Feng Liang +6
As the largest gravitationally bound objects in the Universe, galaxy clusters have provided the first piece of evidence for the presence of dark matter and may be suitable targets…
The AMS-02 cosmic ray deuteron flux is consistent with a secondary origin
Qiang Yuan, Yi-Zhong Fan
The recent measurements of cosmic ray deuteron fluxes by AMS-02 show that the rigidity dependence of deuterons is similar with that of protons but flatter than He, which has be…