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About

Haotong Zhang is an astrophysicist whose work bridges high-energy transient phenomena and precision astronomical instrumentation. His most cited paper, "Decay of the GRB 990123 Optical Afterglow: Implications for the Fireball Model" (1999, 112 citations), provided critical broad-band ultraviolet-to-near-infrared observations of one of the most intense gamma-ray bursts ever recorded. By analyzing the afterglow decay starting 8.5 hours post-burst, Zhang and collaborators offered key constraints on the fireball model, helping shape our understanding of relativistic jet dynamics and energy dissipation in GRBs—a foundational contribution to transient astrophysics. More recently, Zhang has advanced the engineering of large-scale spectroscopic surveys. His 2021 work on "LAMOST Fiber Positioning Unit Detection Based on Deep Learning" (9 citations) tackles the challenge of automating the positioning accuracy of thousands of fiber units in the Large Sky Area Multi-Object Fiber Spectroscope Telescope (LAMOST). By applying deep learning to detect and correct initial parameters of the double revolving fiber positioning units, Zhang’s research enhances the reliability of robotic fiber placement, directly impacting the efficiency of massive spectroscopic surveys. This dual expertise—from explosive cosmic events to precision robotics—demonstrates a rare versatility, making Zhang a notable figure in both theoretical and applied astrophysics.