Alexander Arriola

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About

Dr. Alexander Arriola is a key figure in the development of next-generation astronomical instrumentation, with a primary focus on high-resolution spectroscopy for exoplanet detection and asteroseismology. His most notable contribution is the design and realization of the RHEA (Replicable High-resolution Exoplanet and Asteroseismology) spectrograph, a groundbreaking instrument that operates at the diffraction limit by employing a single-mode fiber input. This innovative approach dramatically reduces the spectrograph’s size and cost while maintaining exceptional performance, making it ideal for deployment across a network of small robotic telescopes. The RHEA spectrograph, detailed in his highly cited 2016 paper (9 citations), represents a paradigm shift toward scalable, replicable instrumentation. By enabling multiple identical copies to be built and distributed, Arriola’s work paves the way for large-scale, coordinated exoplanet surveys that were previously infeasible. His research directly addresses the challenge of achieving high spectral resolution in compact, affordable packages, positioning him as a leader in the push to democratize precision radial velocity measurements and expand the search for Earth-like worlds beyond our solar system.