5 papers · 1 filter
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…
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…
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…
Contribution of the Cygnus bubble to the Galactic cosmic ray spectrum and diffuse -ray emissions
Lin Nie, Xiang-Li Qian, Yi-Qing Guo +1
Since the discovery of cosmic rays (CRs) over a century ago, their origin has remained a mystery and a key research question. Recently, the LHAASO experiment identified the first C…