Speaker
Description
This report presents recent LHAASO measurements of Galactic gamma-ray emission, including ultra-high-energy emission from microquasars, diffuse emission from the Galactic plane, and gamma rays from nearby giant molecular clouds. The microquasar observations reveal gamma-ray spectra extending beyond 100 TeV, indicating efficient particle acceleration in accreting black-hole systems. The Galactic diffuse emission measured by LHAASO exceeds expectations based on local cosmic-ray spectra and gas column density. The LHAASO measurements imply that either additional emission sources exist or cosmic ray intensities have spatial variations. In addition, analyses of nearby giant molecular clouds provide an in-situ probe of cosmic-ray density and spectra in the interstellar medium. These results highlight LHAASO’s important role in exploring very-high-energy/ultra-high-energy processes in the Milky Way.
| 请选择分会 | 中微子物理、粒子天体物理与宇宙学 |
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