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About

Rongpu Zhou is a key figure in the Dark Energy Spectroscopic Instrument (DESI) collaboration, where his work on instrumentation, data calibration, and large-scale structure analysis has been critical to the project’s success. His research focuses on the technical challenges of precision cosmology, particularly the fiber assignment system that enables DESI to simultaneously capture spectra from 5,000 galaxies. Zhou led the first detection of the baryon acoustic oscillation (BAO) signal from early DESI data (37 citations), a landmark result that demonstrates the instrument’s power to map cosmic expansion. He also authored the comprehensive overview of the DESI fiber system (57 citations) and developed mitigation methods for fiber assignment incompleteness in the DR1 analysis (20 citations). Additionally, his work on astrometric calibration ensures the focal plane’s robotic positioners achieve the sub-arcsecond accuracy required for the survey’s ambitious goals. With over 100 citations across his most influential papers, Zhou’s contributions bridge the gap between instrument design and cosmological inference, making him a vital contributor to DESI’s mission of creating the largest 3D map of the universe.