7 papers
Time-dependent Evolution of Proton Spectra in Supernova Remnants and Their Contribution to Galactic Cosmic Rays
Jun-Yu Shen, Hou-Dun Zeng, Qiang Yuan
Recent -ray observations indicate that the proton spectra of supernova remnants (SNRs) are well described by broken power laws, with both the spectral break energy, $E_{\mathrm{…
Enhanced All-Distance Equi-Zenith Angle Method for Cosmic-Ray Anisotropy Measurement
Dong-Xu Sun, Dan Li, Wei Liu +3
Long-term observations indicate that the relative intensity of cosmic-ray anisotropy remains below for energies less than PeV. Measuring such faint signals poses a…
Co-evolution of cosmic ray energy spectra, composition, and anisotropies
Bing-Qiang Qiao, Qiang Yuan, Yi-Qing Guo
The origin of cosmic rays remains an unresolved fundamental problem in astrophysics. The synergy of multiple observational probes, including the energy spectra, the mass compositio…
Detection of afterglow emission up to 100 GeV through a stacking analysis of gamma-ray bursts
Shi Chen, Qiang Yuan, Yi-Qing Guo +3
High-energy gamma-ray (>GeV) emission of gamma-ray bursts (GRBs) is very important in probing the jet evolution and particle acceleration of GRBs. The observations of high-energy p…
Constraining the Cosmic-ray Energy Based on Observations of Nearby Galaxy Clusters by LHAASO
The LHAASO Collaboration, Zhen Cao, F. Aharonian +323
Galaxy clusters act as reservoirs of high-energy cosmic rays (CRs). As CRs propagate through the intracluster medium, they generate diffuse -rays detectable by arrays such as L…
Two-component diffuse Galactic gamma-ray emission revealed with Fermi-LAT
Qi-Ling Chen, Qiang Yuan, Yi-Qing Guo +2
The enigma of cosmic ray origin and propagation stands as a key question in particle astrophysics. The precise spatial and spectral measurements of diffuse Galactic gamma-ray emiss…