Extrasolar Planets


ExoVista: A Suite of Planetary System Models for Exoplanet Studies

ExoVista: A Suite of Planetary System Models for Exoplanet Studies

Studies of future space- and ground-based exoplanet surveys often rely on models of planetary systems to simulate instrument response, estimate scientific yields, perform trade analyses, and study efficient observation strategies.


Unsupervised Machine Learning for Exploratory Data Analysis of Exoplanet Transmission Spectra

Unsupervised Machine Learning for Exploratory Data Analysis of Exoplanet Transmission Spectra

Transit spectroscopy is a powerful tool to decode the chemical composition of the atmospheres of extrasolar planets. In this paper we focus on unsupervised techniques for analyzing spectral data from transiting exoplanets.


Mapping The Surface Of Partially Cloudy Exoplanets Is Hard

Mapping The Surface Of Partially Cloudy Exoplanets Is Hard

Reflected light photometry of terrestrial exoplanets could reveal the presence of oceans and continents, hence placing direct constraints on the current and long-term habitability of these worlds.


Analytical Modelling of Exoplanet Transit Specroscopy with Dimensional Analysis and Symbolic Regression

Analytical Modelling of Exoplanet Transit Specroscopy with Dimensional Analysis and Symbolic Regression

The physical characteristics and atmospheric chemical composition of newly discovered exoplanets are often inferred from their transit spectra which are obtained from complex numerical models of radiative transfer.


Towards a Classification Scheme for the Rocky Planets based on Equilibrium Thermodynamic Considerations

Towards a Classification Scheme for the Rocky Planets based on Equilibrium Thermodynamic Considerations

A classification scheme for rocky planets is proposed, based on a description of the Earth System in terms of the Landau-Ginzburg Theory of phase transitions.


Assessing TESS's Yield of Rocky Planets Around Nearby M Dwarfs

Assessing TESS's Yield of Rocky Planets Around Nearby M Dwarfs

Terrestrial planets are easier to detect around M dwarfs than other types of stars, making them promising for next-generation atmospheric characterization studies.


Atmospheres Of Rocky Exoplanets

Atmospheres Of Rocky Exoplanets

Rocky planets are common around other stars, but their atmospheric properties remain largely unconstrained. Thanks to a wealth of recent planet discoveries and upcoming advances in observing capability, we are poised to characterize the atmospheres of dozens of rocky exoplanets in this decade.


The Atmospheres Of Rocky Exoplanets II. Influence Of Surface Composition On The Diversity Of Cloud Condensates

The Atmospheres Of Rocky Exoplanets II. Influence Of Surface Composition On The Diversity Of Cloud Condensates

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.


A Hot Mars-sized Exoplanet Transiting An M Dwarf

A Hot Mars-sized Exoplanet Transiting An M Dwarf

We validate the planetary nature of an ultra-short period planet orbiting the M dwarf KOI-4777. We use a combination of space-based photometry from Kepler, high-precision, near-infrared Doppler spectroscopy from the Habitable-zone Planet Finder, and adaptive optics imaging to characterize this system.


Automation Of Transiting Exoplanet Detection, Identification and Habitability Assessment Using Machine  Learning Approaches

Automation Of Transiting Exoplanet Detection, Identification and Habitability Assessment Using Machine Learning Approaches

We are at a unique timeline in the history of human evolution where we may be able to discover earth-like planets around stars outside our solar system where conditions can support life or even find evidence of life on those planets.


Large Interferometer For Exoplanets (LIFE): III. Spectral resolution, wavelength range and sensitivity requirements based on atmospheric retrieval analyses of an exo-Earth

Large Interferometer For Exoplanets (LIFE): III. Spectral resolution, wavelength range and sensitivity requirements based on atmospheric retrieval analyses of an exo-Earth

Temperate terrestrial exoplanets are likely common objects, but their discovery and characterization is very challenging.


The Onset Of A Globally Ice-covered State For A Land Planet

The Onset Of A Globally Ice-covered State For A Land Planet

The climates of terrestrial planets with a small amount of water on their surface, called land planets, are significantly different from the climates of planets having a large amount of surface water.


A Closer Look At Opening Angles And Absorption Regions In The Atmospheres Of Transiting Exoplanets

A Closer Look At Opening Angles And Absorption Regions In The Atmospheres Of Transiting Exoplanets

Transmission spectra contain a wealth of information about the atmospheres of transiting exoplanets. However, large thermal and chemical gradients along the line of sight can lead to biased inferences in atmospheric retrievals.


ExoMiner: A Highly Accurate And Explainable Deep Learning Classifier To Mine Exoplanets

ExoMiner: A Highly Accurate And Explainable Deep Learning Classifier To Mine Exoplanets

The Kepler and TESS missions have generated over 100,000 potential transit signals that must be processed in order to create a catalog of planet candidates.


Exoplanetary Interiors

Exoplanetary Interiors

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 the possibility of mass loss of planets on close-orbits that are exposed to strong irradiation.


Characterization Of An Instrument Model For Exoplanet Transit Spectrum Estimation through Wide Scale Analysis on HST Data

Characterization Of An Instrument Model For Exoplanet Transit Spectrum Estimation through Wide Scale Analysis on HST Data

Instrument models (IMs) enable the reduction of systematic error in transit spectroscopy light curve data, but, since the model formulation can influence the estimation of science model parameters, characterization of the instrument model effects is crucial to the interpretation of the reduced data.


Inferring Shallow Surfaces On sub-Neptune Exoplanets With JWST

Inferring Shallow Surfaces On sub-Neptune Exoplanets With JWST

Planets smaller than Neptune and larger than Earth make up the majority of the discovered exoplanets. Those with H2-rich atmospheres are prime targets for atmospheric characterization.


Growth And Evolution Of Secondary Volcanic Atmospheres: I. Identifying The Geological Character Of Warm Rocky Planets

Growth And Evolution Of Secondary Volcanic Atmospheres: I. Identifying The Geological Character Of Warm Rocky Planets

The geology of Earth and super-Earth sized planets will, in many cases, only be observable via their atmospheres. Here, we use the creation of volcanic atmospheres as a key window into planetary geochemistry.


Polluted White Dwarfs Reveal Exotic Mantle Rock Types on Exoplanets in our Solar Neighborhood

Polluted White Dwarfs Reveal Exotic Mantle Rock Types on Exoplanets in our Solar Neighborhood

Prior studies have hypothesized that some polluted white dwarfs record continent-like granitic crust--which is abundant on Earth and perhaps uniquely indicative of plate tectonics. But these inferences derive from only a few elements, none of which define rock type.


Direct Emission Spectroscopy Of Exoplanets With The Medium Resolution Imaging Spectrometer On Board JWST

Direct Emission Spectroscopy Of Exoplanets With The Medium Resolution Imaging Spectrometer On Board JWST

The Medium Resolution Spectrometer on board JWST/MIRI will give access to mid-IR spectra while retaining spatial information. With the unparalleled sensitivity of JWST and the MIRI detectors, the MRS has the potential to revolutionise our understanding of giant exoplanet atmospheres.



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