English

The Structure of Exoplanets

Earth and Planetary Astrophysics 2015-06-18 v1

Abstract

The hundreds of exoplanets that have been discovered in the past two decades offer a new perspective on planetary structure. Instead of being the archetypal examples of planets, those of our Solar System are merely possible outcomes of planetary system formation and evolution, and conceivably not even terribly common outcomes (although this remains an open question). Here, we review the diverse range of interior structures that are known to, and speculated to, exist in exoplanetary systems -- from mostly degenerate objects that are more than 10 times as massive as Jupiter, to intermediate-mass Neptune-like objects with large cores and moderate hydrogen/helium envelopes, to rocky objects with roughly the mass of the Earth.

Keywords

Cite

@article{arxiv.1312.3323,
  title  = {The Structure of Exoplanets},
  author = {David S. Spiegel and Jonathan J. Fortney and Christophe Sotin},
  journal= {arXiv preprint arXiv:1312.3323},
  year   = {2015}
}

Comments

To be published in PNAS special issue on exoplanets. 6 pages, 3 figures

R2 v1 2026-06-22T02:25:50.877Z