Speaker
梓杰 黄
Description
The Extragalactic Background Light (EBL) comprises diffuse ultraviolet, optical, and infrared photons emitted by all galaxies since the birth of the universe. It leaves a distinct imprint on observations in the TeV energy range through the electron-positron pair production effect. In this study, leveraging LHAASO's robust capabilities—including all-day operation, a wide field of view, and high sensitivity—we monitored the extragalactic source Mrk 421 for four years. By analyzing its flare data, we sought to reconstruct the EBL intensity. Building upon existing EBL models, we employed stacking analysis to fine-tune these models, aiming to decouple EBL absorption from the intrinsic spectral cutoff.
Primary author
梓杰 黄
