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It has been a common assumption of interior models that the outer planets of our solar system are convective, and that the internal temperature distributions are therefore adiabatic. This assumption is also often applied to exoplanets.…

Earth and Planetary Astrophysics · Physics 2019-06-05 Morris Podolak , Ravit Helled , Gerald Schubert

Neptunes and sub-Neptunes are typically modeled under the assumption that the interior is adiabatic and consists of distinct layers. However, formation models indicate that composition gradients can exist. Such composition gradients can…

Earth and Planetary Astrophysics · Physics 2026-03-03 Mark Eberlein , Ravit Helled

We consider the thermal structure and radii of strongly irradiated gas giant planets over a range in mass and irradiating flux. The cooling rate of the planet is sensitive to the surface boundary condition, which depends on the detailed…

Astrophysics · Physics 2008-11-26 Phil Arras , Lars Bildsten

Several short-period Jupiter-mass planets have been discovered around nearby solar-type stars. During the circularization of their orbits, the dissipation of tidal disturbance by their host stars heats the interior and inflates the sizes of…

Astrophysics · Physics 2009-11-10 Pin-Gao Gu , Peter H. Bodenheimer , Douglas N. C. Lin

We are interested in the influence of cloudy atmospheres on the thermal radius evolution of warm exoplanets from an interior modelling perspective. By applying a physically motivated but simple parameterized cloud model, we obtain the…

Earth and Planetary Astrophysics · Physics 2024-04-10 Anna Julia Poser , Ronald Redmer

As a planet ages it cools and its radius shrinks, at a rate set by the efficiency with which heat is transported from the interior out to space. The bottleneck for this transport is at the boundary between the convective interior and the…

Earth and Planetary Astrophysics · Physics 2015-06-17 E. Rauscher , A. P. Showman

There have been many proposed explanations for the larger-than-expected radii of some transiting hot Jupiters, including either stellar or orbital energy deposition deep in the atmosphere or deep in the interior. In this paper, we explore…

Earth and Planetary Astrophysics · Physics 2015-06-15 David S. Spiegel , Adam Burrows

While conventional interior models for Jupiter and Saturn are based on the simplistic assumption of a solid core surrounded by a homogeneous gaseous envelope, we derive new models with an inhomogeneous distribution of heavy elements, i.e. a…

Earth and Planetary Astrophysics · Physics 2015-06-03 Jérémy Leconte , Gilles Chabrier

Observational advancements are leading to increasingly precise measurements of super-Earth masses and radii. Such measurements are used in internal structure models to constrain interior compositions of super-Earths. It is now critically…

Earth and Planetary Astrophysics · Physics 2016-02-24 Scott W. Thomas , Nikku Madhusudhan

We present updated atmospheric tables suitable for calculating the post-formation evolution and cooling of Jupiter and Jupiter-like exoplanets. These tables are generated using a 1D radiative transfer modeling code that incorporates the…

Earth and Planetary Astrophysics · Physics 2023-09-06 Yi-Xian Chen , Adam Burrows , Ankan Sur , Roberto Tejada Arevalo

The radius of an exoplanet may be affected by various factors, including irradiation, planet mass and heavy element content. A significant number of transiting exoplanets have now been discovered for which the mass, radius, semi-major axis,…

Earth and Planetary Astrophysics · Physics 2015-06-04 B. Enoch , A. Collier Cameron , K. Horne

The thermal evolution and interior structure of giant exoplanets are sensitive to the treatment of radiative opacity. At temperatures of ~2000 K, depletion of alkali metals can create a window of reduced opacity, potentially giving rise to…

Earth and Planetary Astrophysics · Physics 2026-03-27 Simon Müller , Ravit Helled

Interior models of giant planets traditionally assume that at a given radius (i.e. pressure) the density should be larger than or equal to the one corresponding to a homogeneous, adiabatic stratification throughout the planet (referred to…

Earth and Planetary Astrophysics · Physics 2021-06-09 F. Debras , G. Chabrier , D. Stevenson

We used {\sl \textup{ab initio}} molecular dynamics simulations to calculate the high-pressure melting temperatures of the three potential core components. The planetary adiabats were obtained by solving the hydrostatic equations in a…

Earth and Planetary Astrophysics · Physics 2019-10-30 S. Mazevet , R. Musella , F. Guyot

In order to characterize giant exoplanets and better understand their origin, knowledge of how the planet's composition depends on its mass and stellar environment is required. In this work, we simulate the thermal evolution of gaseous…

Earth and Planetary Astrophysics · Physics 2020-11-18 Simon Müller , Maya Ben-Yami , Ravit Helled

Circumbinary disc observations and simulations show large, eccentric inner cavities. Recent work has shown that the shape and size of these cavities depend on the aspect ratio and viscosity of the disc, as well as the binary eccentricity…

Earth and Planetary Astrophysics · Physics 2022-08-31 Prakruti Sudarshan , Anna B. T. Penzlin , Alexandros Ziampras , Wilhelm Kley , Richard P. Nelson

We generalize the theory of the inhomogeneity effect to enable comparison among different inhomogeneous planets. A metric of inhomogeneity based on the cumulative distribution function is applied to investigate the dependence of planetary…

Earth and Planetary Astrophysics · Physics 2023-08-31 Xi Zhang

The temperature in the optically thick interior of protoplanetary discs is essential for the interpretation of millimeter observations of the discs, for the vertical structure of the discs, for models of the disc evolution and the planet…

Astrophysics · Physics 2009-11-13 Akio K. Inoue , Akinori Oka , Taishi Nakamoto

This article provides an overview of how models of giant planet interiors are constructed. We review measurements from past space missions that provide constraints for the interior structure of Jupiter. We discuss typical three-layer…

Earth and Planetary Astrophysics · Physics 2016-10-19 Burkhard Militzer , Francois Soubiran , Sean M. Wahl , William Hubbard

Astrophysical observations reveal a large diversity of radii and masses of exoplanets. It is important to characterize the interiors of exoplanets to understand planetary diversity and further determine how unique, or not, Earth is.…

Earth and Planetary Astrophysics · Physics 2019-02-06 Caroline Dorn , Dan J. Bower , Antoine B. Rozel
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