4 papers
A Multi-messenger Search for a Nearby Microquasar Contributor to the Cosmic Ray Knee
Lin Nie, Hua Yue, Yi-Qing Guo +1
Recently, LHAASO has detected five microquasars with high confidence, which are associated with SS 433, V4641 Sgr, GRS 1915+105, MAXI J1820+070, and Cygnus X-1, respectively. Excep…
Two-component -Ray Structure from the CR Sources Within Dense Clouds
Lin Nie, Yi-Qing Guo, Si-Ming Liu
Recent observations have revealed that several cosmic ray (CR) sources themselves exhibit pronounced double power-law features in their radiation spectra. Combined with the phenome…
Geminga: A Window into the Role Played by the Local Halo in the Cosmic-Ray Propagation Process
Lin Nie, Yu-Hai Ge, Yi-Qing Guo +1
A novel phenomenon among the recently observed Geminga pulsar halo is the presence of distinct radiation morphology at high energies, while no extended radiation is detected in the…
A Possible Common Physic Picture Reflected by the Gamma Ray Emission of the Galactic Center
Lin Nie, Yi-Qing Guo, Si-Ming Liu
Long-term observations of the Galactic center by Fermi and HESS have revealed a novel phenomenon: the high-energy gamma-ray spectrum from the Galactic center exhibits a double powe…