Results 51 to 60 of about 53,484 (152)
A Catalog of Exoplanet Atmospheric Retrieval Codes
Research Notes of the AAS, 2023 Abstract Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations. Retrieval codes typically employ Bayesian sampling algorithms or machine learning approaches to explore the range of atmospheric properties (e.g., chemical composition ...
MacDonald, Ryan, Batalha, Natasha
openaire +2 more sources
Clouds and Hazes in Exoplanet Atmospheres [PDF]
, 2013 book chapter to appear in "Comparative Climatology of Terrestrial Planets" (S. Mackwell, M. Bullock, J. Harder, eds.; University of Arizona Press, 2013)
Jeffrey N. Cuzzi +3 more
openaire +4 more sources
The Status of Spectroscopic Data for the Exoplanet Characterisation Missions [PDF]
, 2014 The status of laboratory spectroscopic data for exoplanet characterisation missions such as EChO is reviewed. For many molecules (eg H2O, CO, CO2, H3+, O2, O3) the data are already available.
Tennyson, Jonathan, Yurchenko, Sergei N.
core +3 more sources
Atmospheric Circulation of Terrestrial Exoplanets [PDF]
, 2013 The investigation of planets around other stars began with the study of gas giants, but is now extending to the discovery and characterization of super-Earths and terrestrial planets. Motivated by this observational tide, we survey the basic dynamical principles governing the atmospheric circulation of terrestrial exoplanets, and discuss the ...
Showman, Adam P. +3 more
openaire +4 more sources
Observations of PAHs in the atmospheres of discs and exoplanets
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) play a key role in the chemical and hydrodynamical evolution of the atmospheres of exoplanets and planet-forming discs. If they can survive the planet formation process, PAHs are likely to be involved in pre-biotic chemical reactions eventually leading to more complex molecules such as ...
Ercolano, Barbara +7 more
openaire +4 more sources
The Astronomical Journal, 2023 Detecting H _2 O in exoplanet atmospheres is the first step on the path to determining planet habitability. Coronagraphic design currently limits the observing strategy used to detect H _2 O, requiring the choice of specific bandpasses to optimize ...
Natasha Latouf +6 more
doaj +1 more source
Ranges of Atmospheric Mass and Composition of Super Earth Exoplanets
, 2008 Terrestrial-like exoplanets may obtain atmospheres from three primary sources: Capture of nebular gases, degassing during accretion, and degassing from subsequent tectonic activity.
Burbine T. H. +5 more
core +1 more source
An Updated Study of Potential Targets for Ariel [PDF]
, 2019 Ariel has been selected as ESA's M4 mission for launch in 2028 and is designed for the characterisation of a large and diverse population of exoplanetary atmospheres to provide insights into planetary formation and evolution within our Galaxy.
Edwards, Billy +4 more
core +4 more sources
Outstanding Challenges of Exoplanet Atmospheric Retrievals [PDF]
Space Science Reviews, 2020 Spectral retrieval has long been a powerful tool for interpreting planetary remote sensing observations. Flexible, parameterised, agnostic models are coupled with inversion algorithms in order to infer atmospheric properties directly from observations, with minimal reliance on physical assumptions. This approach, originally developed for application to
Kevin Heng +2 more
openaire +5 more sources
Clouds in Exoplanetary Atmospheres [PDF]
, 2020 Today, we know ~4330 exoplanets orbiting their host stars in ~3200 planetary systems. The diversity of these exoplanets is large, and none of the known exoplanets is a twin to any of the solar system planets, nor is any of the known extrasolar planetary systems a twin of the solar system.
arxiv +1 more source