Hyungsoon Choi
Korea Advanced Institute of Science and Technology · Engineering
About the Lab
Professor Hyungsoon Choi's research lab specializes in space-based optical astronomy, with a primary focus on gamma-ray burst (GRB) detection and early-time optical follow-up. The lab develops advanced fast-steering mirror systems and compact space telescopes, such as the Ultra-Fast Flash Observatory (UFFO), to capture the initial optical emissions of GRBs within seconds of their detection. Their work emphasizes precision engineering for rapid spacecraft pointing and high-speed optical response, enabling critical insights into the physics of cosmic explosions. The lab also contributes to the design and development of space instruments for small satellite platforms, such as the UFFO-Pathfinder mission on the Lomonosov satellite.
Research Overview
Research Output Trend
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Selected Papers
2The Ultra-Fast Flash Observatory (UFFO) is a space observatory for optical follow-ups of gamma ray bursts (GRBs), aiming to explore the first 60 seconds of GRBs optical emission. UFFO is utilized to catch early optical emissions from GRBs within few sec after trigger using a Gimbal mirror which redirects the optical path rather than slewing entire spacecraft. We have developed a 15 cm two-axis Gimbal mirror stage for the UFFO-Pathfinder which is going to be on board the Lomonosov satellite which
Research Areas
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