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About

J. Aguilar is a key figure in the development and scientific exploitation of the Dark Energy Spectroscopic Instrument (DESI), one of the most ambitious cosmological surveys ever undertaken. Their primary research areas include observational cosmology, large-scale structure, and the instrumentation required to map millions of galaxies. Aguilar’s major contributions are twofold: first, they played a critical role in the design and implementation of DESI’s instrumentation, as detailed in the highly cited 2022 overview paper (10 citations), which describes the hardware enabling the survey’s goal of measuring dark energy through baryon acoustic oscillations. Second, Aguilar led the development of a novel technique to correct for fiber assignment biases in spectroscopic surveys, ensuring unbiased clustering measurements from DESI data and simulations (2025, 25 citations). This work is vital for extracting accurate cosmological parameters from the survey’s 40-million-galaxy dataset. With their contributions bridging hardware engineering and cutting-edge data analysis, Aguilar’s work is foundational to DESI’s mission and has already garnered significant attention, positioning them as a leading researcher in the quest to understand the universe’s accelerating expansion.