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In this study, we treat Earth as an exoplanet and investigate our home planet by means of a potential future mid-infrared (MIR) space mission called the Large Interferometer For Exoplanets (LIFE). We combine thermal spectra from an…

Earth and Planetary Astrophysics · Physics 2024-05-14 Jean-Noël Mettler , Björn S. Konrad , Sascha P. Quanz , Ravit Helled

There is growing observational and theoretical evidence suggesting that atmospheric escape is a key driver of planetary evolution. Commonly, planetary evolution models employ simple analytic formulae (e.g., energy limited escape) that are…

We construct models of the structural evolution of super-Earth- and mini-Neptune-type exoplanets with hydrogen-helium envelopes, incorporating radiative cooling and XUV-driven mass loss. We conduct a parameter study of these models,…

Earth and Planetary Astrophysics · Physics 2015-08-06 Alex R. Howe , Adam S. Burrows

Sub-Neptune-sized exoplanets represent one of the most common types of planets in the Milky Way, yet many of their properties are unknown. Here, we present a prescription to adapt the capabilities of the stellar evolution toolkit Modules…

Earth and Planetary Astrophysics · Physics 2016-11-15 Howard Chen , Leslie A. Rogers

Giant planet evolution models play a crucial role in interpreting observations and constraining formation pathways. However, the simulations can be slow or prohibitively difficult. To address this issue, we calculate a large suite of giant…

Earth and Planetary Astrophysics · Physics 2021-08-18 Simon Müller , Ravit Helled

We give an overview of our current understanding of the structure of gas giant planets, from Jupiter and Saturn to extrasolar giant planets. We focus on addressing what high-pressure laboratory experiments on hydrogen and helium can help to…

Astrophysics · Physics 2008-11-26 Jonathan J. Fortney

Future telescopes will characterize rocky exoplanets in reflected light, revealing their albedo, which depends on surface, cloud, and atmospheric properties. Identifying these features is crucial for assessing habitability. We present…

Earth and Planetary Astrophysics · Physics 2025-04-09 Giulia Roccetti , Claudia Emde , Michael F. Sterzik , Mihail Manev , Julia V. Seidel , Stefano Bagnulo

Aims. Comparing theoretical models with observations allows one to make key step forward towards an understanding of planetary systems. It however requires a model able to (i) predict all the necessary observable quantities (not only masses…

Earth and Planetary Astrophysics · Physics 2021-12-08 Alexandre Emsenhuber , Christoph Mordasini , Remo Burn , Yann Alibert , Willy Benz , Erik Asphaug

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

With observational efforts moving from the discovery into the characterisation mode, systematic campaigns that cover large ranges of global stellar and planetary parameters will be needed. We aim to uncover cloud formation trends and…

Massive stars are key sources of radiative, kinetic, and chemical feedback in the universe. Grids of massive star models computed by different groups each using their own codes, input physics choices and numerical approximations, however,…

Solar and Stellar Astrophysics · Physics 2015-06-23 Samuel Jones , Raphael Hirschi , Marco Pignatari , Alexander Heger , Cyril Georgy , Nobuya Nishimura , Chris Fryer , Falk Herwig

We develop a general framework to discover scientific algorithms and apply it to three problems in computational cosmology. Our code, MadEvolve, is similar to Google's AlphaEvolve, but places a stronger emphasis on free parameters and their…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-19 Tianyi Li , Shihui Zang , Moritz Münchmeyer

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

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

The presence of certain elements within a star, and by extension its planet, strongly impacts the formation and evolution of the planetary system. The positive correlation between a host star's iron-content and the presence of an orbiting…

Earth and Planetary Astrophysics · Physics 2019-07-31 Natalie R. Hinkel , Cayman Unterborn , Stephen R. Kane , Garrett Somers , Richard Galvez

Materials at high pressures and temperatures are of great interest for planetary science and astrophysics, warm dense matter physics, and inertial confinement fusion research. Planetary structure models rely on our understanding of the…

Earth and Planetary Astrophysics · Physics 2020-06-23 Ravit Helled , Guglielmo Mazzola , Ronald Redmer

One of the frontier research fields of exoplanetary science is the study of the composition and variability of exoplanetary atmospheres. This field is now moving from the gas giant planets towards the smaller and colder telluric planets,…

Earth and Planetary Astrophysics · Physics 2025-10-17 Monica Rainer , Evandro Balbi , Francesco Borsa , Paola Cianfarra , Avet Harutyunyan , Silvano Tosi

We investigate the chemical composition of the solar system's giant planets atmospheres using a physical formation model with chemistry. The model incorporate disk evolution, pebbles and gas accretion, type I and II migration, simplified…

Earth and Planetary Astrophysics · Physics 2016-12-07 Mohamad Ali-Dib

In this white paper, we present AlphaEvolve, an evolutionary coding agent that substantially enhances capabilities of state-of-the-art LLMs on highly challenging tasks such as tackling open scientific problems or optimizing critical pieces…

We present a new set of solar metallicity atmosphere and evolutionary models for very cool brown dwarfs and self-luminous giant exoplanets, which we term ATMO 2020. Atmosphere models are generated with our state-of-the-art 1D…

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