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Related papers: A Computational Tool to Interpret the Bulk Composi…

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Static structure models, which map mass-radius constraints to bulk planet composition, are frequently used to categorise exoplanets due to their computational efficiency and the high-level insight they offer into planetary properties.…

Earth and Planetary Astrophysics · Physics 2026-04-20 Harrison Nicholls , Oliver Shorttle , Tim Lichtenberg , Flavia Pascal

The present-day bulk elemental composition of an exoplanet can provide insight into a planet's formation and evolutionary history. Such information is now being measured for dozens of planets with state-of-the-art facilities using Bayesian…

Earth and Planetary Astrophysics · Physics 2025-10-31 Joshua D. Lothringer , Nataliea Lowson , Guangwei Fu

This review is focused on describing the logic by which we make predictions of exoplanetary compositions and mineralogies, and how these processes could lead to compositional diversity among rocky exoplanets. We use these predictions to…

Earth and Planetary Astrophysics · Physics 2024-04-25 Claire Marie Guimond , Haiyang Wang , Fabian Seidler , Paolo Sossi , Aprajit Mahajan , Oliver Shorttle

The first mass-estimate of an exoplanet around a Sun-like star, 51 Peg b and the first radius measurement of an exoplanet, HD209458b pointed to the challenges of understanding the atmosphere, interior, and evolution of exoplanets including…

Earth and Planetary Astrophysics · Physics 2021-12-15 Nadine Nettelmann , Diana Valencia

Determination of an exoplanet's mass is a key to understanding its basic properties, including its potential for supporting life. To date, mass constraints for exoplanets are predominantly based on radial velocity (RV) measurements, which…

Earth and Planetary Astrophysics · Physics 2014-01-27 Julien de Wit , Sara Seager

Thousands of extrasolar planets have been discovered, and it is clear that the galactic planetary census draws on a diversity greatly exceeding that exhibited by the solar system's planets. We review significant landmarks in the chronology…

Earth and Planetary Astrophysics · Physics 2021-09-22 Gregory Laughlin , Jack J. Lissauer

The varied surfaces and atmospheres of planets make them interesting places to live, explore, and study from afar. Unfortunately, the great distance to exoplanets makes it impossible to resolve their disk with current or near-term…

Earth and Planetary Astrophysics · Physics 2024-02-01 Nicolas B. Cowan , Yuka Fujii

The bulk compositions of small planets ($R_p< 2 \mathrm{R}_\oplus$) are directly linked to their formation histories, making reliable compositional constraints imperative for testing models of planet formation and evolution. Because…

Earth and Planetary Astrophysics · Physics 2026-01-21 Joseph Schulze , Natalie Hinkel , Wendy Panero , Cayman Unterborn

High contrast direct imaging of exoplanets can provide many important observables, including measurements of the orbit, spectra that probe the lower layers of the atmosphere, and phase variations of the planet, but cannot directly measure…

Earth and Planetary Astrophysics · Physics 2020-06-10 Christopher C. Stark , Courtney Dressing , Shannon Dulz , Eric Lopez , Mark S. Marley , Peter Plavchan , Johannes Sahlmann

Transiting exoplanets provide access to data to study the mass-radius relation and internal structure of extrasolar planets. Long-period transiting planets allow insight into planetary environments similar to the Solar System where, in…

Earth and Planetary Astrophysics · Physics 2015-05-20 Kaspar von Braun , Stephen R. Kane , Suvrath Mahadevan , Greg Laughlin , Andrew Howard , David R. Ciardi

While thousands of exoplanets have been confirmed, the known properties about individual discoveries remain sparse and depend on detection technique. To utilize more than a small section of the exoplanet dataset, tools need to be developed…

Earth and Planetary Astrophysics · Physics 2020-01-15 Elizabeth J. Tasker , Matthieu Laneuville , Nicholas Guttenberg

The field of extrasolar planets has rapidly expanded to include the detection of planets with masses smaller than that of Uranus. Many of these are expected to have little or no hydrogen and helium gas and we might find Earth analogs among…

Astrophysics · Physics 2009-06-23 Diana Valencia , Dimitar D. Sasselov , Richard J. O'Connell , ;

A planetary mass scale and a system of composition codes are presented for describing the geophysical characteristics of exoplanets and Solar System planets, dwarf planets, and spherical moons. The composition classes characterize the rock,…

Earth and Planetary Astrophysics · Physics 2017-05-30 David Russell

Long-period transiting exoplanets provide an opportunity to study the mass-radius relation and internal structure of extrasolar planets. Their studies grant insights into planetary evolution akin to the Solar System planets, which, in…

Earth and Planetary Astrophysics · Physics 2009-11-19 Kaspar von Braun , Stephen R. Kane

Recent astronomical observations obtained with the Kepler and TESS missions and their related ground-based follow-ups revealed an abundance of exoplanets with a size intermediate between Earth and Neptune. A low occurrence rate of planets…

We present a database of well determined orbital parameters of exoplanets. This database comprises spectroscopic orbital elements measured for 427 planets orbiting 363 stars from radial velocity and transit measurements as reported in the…

The gravitational influence of a planet on a nearby disk provides a powerful tool for detecting and studying extrasolar planetary systems. Here we demonstrate that gaps can be opened in dynamically cold debris disks at the mean-motion…

Earth and Planetary Astrophysics · Physics 2016-03-30 Maryam Tabeshian , Paul Wiegert

Features in the distribution of exoplanet parameters by period demonstrate that the distribution of planet parameters is rich with information that can provide essential guidance to understanding planet histories. Structure has been found…

Instrumentation and Methods for Astrophysics · Physics 2019-08-09 Stuart F. Taylor

Priorities in exo-planet research are rapidly moving from finding planets to characterizing their physical properties. Of key importance is their chemical composition, which feeds back into our understanding of planet formation. For the…

Earth and Planetary Astrophysics · Physics 2015-05-14 Boris Gaensicke , John Debes , Patrick Dufour , Jay Farihi , Michael Jura , Mukremin Kilic , Carl Melis , Dimitri Veras , Siyi Xu , Ben Zuckerman

An exoplanet's structure and composition are first-order controls of the planet's habitability. We explore which aspects of bulk terrestrial planet composition and interior structure affect the chief observables of an exoplanet: its mass…

Earth and Planetary Astrophysics · Physics 2016-03-16 Cayman T. Unterborn , Evan E. Dismukes , Wendy R. Panero