2026年6月22日(月) Dr. Craig Stark, University of Glasgow
Brown dwarf and exoplanet atmospheres as natural laboratories for non-equilibrium plasma physics
Abstract: Brown dwarfs occupy the transitional regime between low mass stars and giant exoplanets, and their atmospheres inherit the complexity of both worlds. They host strong magnetic fields, mineral cloud formation, rich chemistry, and electrical activity, including lightning, that can drive partial ionisation and plasma processes. In this talk, I will explore how these substellar atmospheres become electrically active, how plasma behaviour emerges in such weakly ionised environments, and how these processes feedback on atmospheric structure and long-term evolution. By treating brown dwarfs and exoplanets as natural plasma laboratories, we can uncover new connections between astrophysics, atmospheric physics, planetary science, and technological plasmas.
2026年6月22日(月）15:00~16:00(予)
＊場所など、詳細は伊藤まで（tsuyohito@k.u-tokyo.ac.jp)