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The current sparse wavelength range coverage of exoplanet direct imaging observations, and the fact that models are defined using a finite wavelength range, lead both to uncertainties on effective temperature determination.We study these…

Earth and Planetary Astrophysics · Physics 2019-10-07 Jean-Loup Baudino , J. Taylor , P. G. J. Irwin , R. Garland

The accretion of icy and rocky solids during the formation of a gas giant planet is poorly constrained and challenging to model. Refractory species, like sulfur, are only present in solids in the protoplanetary disk where planets form.…

Hot Jupiters present a unique opportunity for measuring how planet formation history shapes present-day atmospheric composition. However, due to the myriad pathways influencing composition, a well-constructed sample of planets is needed to…

Relating planet formation to atmospheric composition has been a long-standing goal of the planetary science community. So far, most modeling studies have focused on predicting the enrichment of heavy elements and the C/O ratio in giant…

Earth and Planetary Astrophysics · Physics 2023-02-02 Yayaati Chachan , Heather A. Knutson , Joshua Lothringer , Geoffrey A. Blake

Low-mass planets have an extraordinarily diverse range of bulk compositions, from primarily rocky worlds to those with deep gaseous atmospheres. As techniques for measuring the masses of exoplanets are advancing the field towards the…

Earth and Planetary Astrophysics · Physics 2019-11-20 Daniel Jontof-Hutter

A major motivation of spectroscopic observations of giant exoplanets is to unveil planet formation processes from atmospheric compositions. Several recent studies suggested that atmospheric nitrogen, like carbon and oxygen, can provide…

Earth and Planetary Astrophysics · Physics 2023-03-29 Kazumasa Ohno , Jonathan J. Fortney

Past studies have revealed the dependency of the disc parameters (mass, radius, viscosity, grain fragmentation velocity, dust-to-gas ratio) on the formation of giant planets, where more massive discs seem beneficial for giant planet…

Earth and Planetary Astrophysics · Physics 2026-03-18 Angie Daniela Guzmán Franco , Sofia Savvidou , Bertram Bitsch

Atmospheric characterization of Earth-like exoplanets through reflected light spectroscopy is a key goal for upcoming direct imaging missions. A critical challenge in this endeavor is the accurate determination of planetary mass, which may…

Earth and Planetary Astrophysics · Physics 2025-02-04 Mario Damiano , Zachary Burr , Renyu Hu , Jennifer Burt , Tiffany Kataria

The Kepler transit survey with follow-up spectroscopic observations has discovered numerous super-Earth sized planets and revealed intriguing features of their sizes, orbital periods, and their relations between adjacent planets. For the…

Earth and Planetary Astrophysics · Physics 2021-12-22 Yuji Matsumoto , Eiichiro Kokubo , Pin-Gao Gu , Kenji Kurosaki

Thousands of exoplanets have been found with many widely different from the ones in our own system. Despite the success, systems with planets in wide orbits analogous to those of Jupiter and Saturn, in the critical first several hundred…

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

Much of the focus of exoplanet atmosphere analysis in the coming decade will be at infrared wavelengths, with the planned launches of the James Webb Space Telescope (JWST) and the Wide-Field Infrared Survey Telescope (WFIRST). However,…

Earth and Planetary Astrophysics · Physics 2019-03-27 Eric D. Lopez , Vladimir Airapetian , Jessie Christiansen , Luca Fossati , Kevin France

This chapter reviews the most recent advancements on the topic of terrestrial and giant planet interiors, including Solar System and extrasolar objects. Starting from an observed mass-radius diagram for known planets in the Universe, we…

Earth and Planetary Astrophysics · Physics 2015-06-18 I. Baraffe , G. Chabrier , J. Fortney , C. Sotin

We present a broad suite of models of extrasolar giant planets (EGP's), ranging in mass from 0.3 to 15 Jupiter masses. The models predict luminosity (both reflected and emitted) as a function of age, mass, deuterium abundance and distance…

Astrophysics · Physics 2009-10-28 D. Saumon , W. B. Hubbard , A. Burrows , T. Guillot , J. I. Lunine , G. Chabrier

We survey the basic principles of atmospheric dynamics relevant to explaining existing and future observations of exoplanets, both gas giant and terrestrial. Given the paucity of data on exoplanet atmospheres, our approach is to emphasize…

Earth and Planetary Astrophysics · Physics 2009-11-18 Adam P. Showman , James Y-K. Cho , Kristen Menou

We highlight how guaranteed time observations (GTOs) and early release science (ERS) will advance understanding of exoplanet atmospheres and provide a glimpse into what transiting exoplanet science will be done with JWST during its first…

The recent discoveries of giant planets around nearby stars have galvanized the planetary science community, astronomers, and the public at large. Since {\it direct} detection is now feasible, and is suggested by the recent acquisition of…

Astrophysics · Physics 2009-10-28 A. Burrows , W. B. Hubbard , J. I. Lunine , T. Guillot , D. Saumon , M. Marley , R. S. Freedman

Exoplanet science is booming. In 20 years our knowledge has expanded considerably, from the first discovery of a Hot Jupiter, to the detection of a large population of Neptunes and super-Earths, to the first steps toward the…

The atmospheres of exoplanets reveal all their properties beyond mass, radius, and orbit. Based on bulk densities, we know that exoplanets larger than 1.5 Earth radii must have gaseous envelopes, hence atmospheres. We discuss contemporary…

Earth and Planetary Astrophysics · Physics 2017-01-04 Drake Deming , Sara Seager
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