For the gas giant planets, these materials are hydrogen and helium. Modelling planetary interiors relies on a profound knowledge of the behaviour of materials at high pressures and temperatures. We relate this to current knowledge of the internal structures of Jupiter and Saturn, and discuss the importance of high-pressure physics to their characterization. We summarize key experiments and theoretical approaches for determining the equation of state and phase diagram of hydrogen and helium. In this Review we discuss the connection between modelling planetary interiors and the high-pressure physics of hydrogen and helium. The topic of dense hydrogen is timely given the recent accurate measurements of the gravitational fields of Jupiter and Saturn, the current and upcoming progress in shock experiments, and the advances in numerical simulations of materials at high pressure. Planetary structure models rely on an understanding of the behaviour of elements and their mixtures under conditions that do not exist on Earth at the same time, planets serve as natural laboratories for studying materials at extreme conditions. Materials at high pressures and temperatures are of great interest for planetary science and astrophysics, warm dense-matter physics and inertial confinement fusion research.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |