John Hygelund

Arthrex (United States), Las Cumbres Observatory Global Telescope Network

Papers

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About

John Hygelund is an instrumental astronomer whose career has been defined by his central role in designing and deploying the Network of Robotic Echelle Spectrographs (NRES) for the Las Cumbres Observatory Global Telescope Network (LCOGT). His work sits at the intersection of precision spectroscopy, telescope automation, and observational infrastructure — fields critical to modern exoplanet research and stellar astrophysics. Hygelund's contributions to NRES span over a decade of development, from early design phases documented in his 2014 paper to the deployment of operational units described in his highly cited 2018 publication, which alone has garnered 51 citations. Together, his three major papers on NRES have accumulated nearly 100 citations, reflecting the instrument's significance to the broader astronomical community. NRES represents a landmark achievement in robotic spectroscopy: a globally distributed network of four high-resolution optical spectrographs, each fiber-fed by 1-meter telescopes and capable of precise radial velocity measurements. By enabling continuous, automated spectroscopic observations across multiple sites, Hygelund's engineering vision has provided researchers worldwide with a uniquely powerful tool for time-sensitive stellar and planetary science.