David J. McComas

David J. McComas is an Associated Faculty Professor of Astrophysical Sciences at Princeton University, specializing in space physics and heliospheric research. His work leverages data from major NASA missions including Parker Solar Probe, Voyager, IBEX, and New Horizons to investigate fundamental solar and interstellar processes.

His research focuses on heliospheric physics, solar energetic particles, and interstellar boundary phenomena. Key areas include pickup ion dynamics, solar wind termination shock physics, energetic neutral atom imaging, and particle acceleration mechanisms. McComas employs multi-spacecraft observational campaigns combined with theoretical modeling to study the Sun's influence on the interstellar medium and space weather effects throughout the heliosphere.

Analysis of his recent publications (2024-2025) reveals dominant research trends in solar energetic particle events (particularly the 2022-2024 extreme events), heliospheric boundary dynamics using IBEX and IMAP data, and fundamental plasma processes in the inner heliosphere. His work increasingly integrates Parker Solar Probe's unprecedented near-Sun measurements with Voyager's interstellar data to model global heliospheric structure.

McComas is deeply involved in the Interstellar Mapping and Acceleration Probe (IMAP) mission and has led significant contributions to the Interstellar Boundary Explorer (IBEX) mission. His research group utilizes spacecraft instrumentation like SWAP (on New Horizons) and ISʘIS (on Parker Solar Probe) to collect in-situ plasma measurements, while developing advanced analysis techniques for energetic neutral atom imaging of the heliosphere's boundaries.