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Related papers: The ARCiS framework for Exoplanet Atmospheres: The…

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Clouds in the atmospheres of exoplanets confound characterization efforts by reducing, eliminating, and distorting spectral signatures of molecular abundances. As such, interpretations of exoplanet spectra strongly depend on the choice of…

Earth and Planetary Astrophysics · Physics 2018-08-29 Peter Gao , Björn Benneke

A number of transiting exoplanets have featureless transmission spectra that might suggest the presence of clouds at high altitudes. A realistic cloud model is necessary to understand the atmospheric conditions under which such…

Earth and Planetary Astrophysics · Physics 2017-02-08 Kazumasa Ohno , Satoshi Okuzumi

Clouds are ubiquitous in extrasolar planet atmospheres and are critical to our understanding of planetary climate and chemistry. They also represent one of the greater challenges to overcome when trying to interpret transit transmission…

Earth and Planetary Astrophysics · Physics 2019-10-09 Chuhong Mai , Michael R. Line

Aims: ARCiS, a novel code for the analysis of exoplanet transmission and emission spectra is presented. The aim of the modelling framework is to provide a tool able to link observations to physical models of exoplanet atmospheres. Methods:…

Earth and Planetary Astrophysics · Physics 2020-10-07 Michiel Min , Chris W. Ormel , Katy Chubb , Christiane Helling , Yui Kawashima

We present a new two-dimensional, bin-scheme microphysical model of cloud formation in the atmospheres of hot Jupiters that includes the effects of longitudinal gas and cloud transport. We predict cloud particle size distributions as a…

Earth and Planetary Astrophysics · Physics 2024-04-16 Diana Powell , Xi Zhang

Insight into the formation and global distribution of cloud particles in exoplanet atmospheres continues to be a key problem to tackle going into the JWST era. Understanding microphysical cloud processes and atmospheric feedback mechanisms…

Earth and Planetary Astrophysics · Physics 2023-08-02 Elspeth K. H. Lee

One significant difference between the atmospheres of stars and exoplanets is the presence of condensed particles (clouds or hazes) in the atmosphere of the latter. The main goal of this paper is to develop a self-consistent microphysical…

Earth and Planetary Astrophysics · Physics 2015-06-11 A. Zsom , L. Kaltenegger , C. Goldblatt

Brown dwarfs and exoplanets provide unique atmospheric regimes that hold information about their formation routes and evolutionary states. Modelling mineral cloud particle formation is key to prepare for missions and instruments like…

Earth and Planetary Astrophysics · Physics 2022-07-13 Dominic Samra , Christiane Helling , Tilman Birnstiel

The ubiquity of clouds in the atmospheres of exoplanets, especially of super-Earths, is one of the outstanding issues for transmission spectra survey. The understanding about the formation process of clouds in super-Earths is necessary to…

Earth and Planetary Astrophysics · Physics 2018-06-06 Kazumasa Ohno , Satoshi Okuzumi

Context. Clouds are ubiquitous in exoplanets' atmospheres and play an important role in setting the opacity and chemical inventory of the atmosphere. Understanding clouds is a critical step in interpreting exoplanets' spectroscopic data.…

Earth and Planetary Astrophysics · Physics 2024-11-27 Helong Huang , Chris W. Ormel , Michiel Min

Warm Saturn type exoplanets orbiting M-dwarfs are particularly suitable for in-depth cloud characterisation through transmission spectroscopy due to their favourable stellar to planetary radius contrast. However, modelling cloud formation…

Clouds have an important role in the atmospheres of planetary bodies. It is expected that, like all the planetary bodies in our solar system, exoplanet atmospheres will also have substantial cloud coverage, and evidence is mounting for…

Earth and Planetary Astrophysics · Physics 2015-01-14 Hannah R. Wakeford , David K. Sing

Recent observations of the super-Earth GJ 1214b show that it has a relatively featureless transmission spectrum. One suggestion is that these observations indicate that the planet's atmosphere is vertically compact, perhaps due to a…

Earth and Planetary Astrophysics · Physics 2015-06-16 Caroline V. Morley , Jonathan J. Fortney , Eliza M. -R. Kempton , Mark S. Marley , Channon Visscher , Kevin Zahnle

Transmission spectrum surveys have suggested the ubiquity of high-altitude clouds in exoplanetary atmospheres. Theoretical studies have investigated the formation processes of the high-altitude clouds; however, cloud particles have been…

Earth and Planetary Astrophysics · Physics 2020-03-18 Kazumasa Ohno , Satoshi Okuzumi , Ryo Tazaki

In recent years, it has become clear that a substantial fraction of transiting exoplanets have some form of aerosol present in their atmospheres. Transit spectroscopy - mostly of hot Jupiters, but also of some smaller planets - has provided…

Earth and Planetary Astrophysics · Physics 2020-08-19 Joanna K. Barstow

Observations of exoplanet atmospheres have revealed the presence of cloud particles in their atmospheres. 3D modelling of cloud formation in atmospheres of extrasolar planets coupled to the atmospheric dynamics has long been a challenge. We…

Earth and Planetary Astrophysics · Physics 2021-06-04 E. K. H. Lee , I. Dobbs-Dixon , Ch. Helling , K. Bognar , P. Woitke

With the increasing number of directly imaged giant exoplanets the current atmosphere models are often not capable of fully explaining the spectra and luminosity of the sources. A particularly challenging component of the atmosphere models…

Earth and Planetary Astrophysics · Physics 2015-06-11 Veselin B. Kostov , Dániel Apai

Clouds are ubiquitous\, -- \,they arise for every solar system planet that possesses an atmosphere and have also been suggested as a leading mechanism for obscuring spectral features in exoplanet observations. As exoplanet observations…

Earth and Planetary Astrophysics · Physics 2022-10-19 James D. Windsor , Tyler D. Robinson , Ravi kumar Kopparapu , David E. Trilling , Joe LLama , Amber Young

Atmospheric collapse is likely to be of fundamental importance to tidally locked rocky exoplanets but remains understudied. Here, general results on the heat transport and stability of tidally locked terrestrial-type atmospheres are…

Earth and Planetary Astrophysics · Physics 2014-12-18 Robin Wordsworth

Clouds are an integral part of planetary atmospheres, with most planets hosting clouds. The understanding of not only the formation, but also the composition of clouds is crucial to the understanding of future observations. As observations…

Earth and Planetary Astrophysics · Physics 2022-03-14 Oliver Herbort , Peter Woitke , Christiane Helling , Aubrey L. Zerkle
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