Exploring exoplanet dynamics with JWST: Tides, rotation, rings, and moons

• 成果类型: Article
• 署名作者: Millholland, Sarah C.; Winn, Joshua N.
• 署名单位: Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Princeton University
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-13094
• DOI: 10.1073/pnas.2416189122
• 发表日期: 2025-09-30
• 关键词: extrasolar planets; tidal dissipation; giant planets; oblateness; satellites; atmosphere; stars; mass; photometry; STABILITY

摘要

Although nearly 6,000 exoplanets are currently known, in most cases, our knowledge is limited to a handful of the planet's orbital characteristics and bulk properties such as radius and mass. The James Webb Space Telescope (JWST) can expand our knowledge not only by probing exoplanet atmospheres but also by measuring additional orbital and physical properties of exoplanets, thanks to its superior light-gathering power and measurement precision. Here, we describe the potential of JWST to unveil dynamical phenomena that were previously beyond our reach, such as tidal distortion and inflation, rotational flattening, planetary rings, and moons.