Results 1 to 10 of about 8,850 (191)
Ranges of Atmospheric Mass and Composition of Super Earth Exoplanets [PDF]
The Astrophysical Journal, 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 +5 more sources
The Astronomical JournalThe present-day bulk elemental composition of an exoplanet can provide insight into a planet’s formation and evolutionary history. Such information is now being measured for dozens of planets with state-of-the-art facilities using Bayesian atmosphere ...
Joshua D. Lothringer +2 more
doaj +4 more sources
Interpreting the atmospheric composition of exoplanets: sensitivity to planet formation assumptions [PDF]
The Astrophysical Journal, 2022 Abstract Constraining planet formation based on the atmospheric composition of exoplanets is a fundamental goal of the exoplanet community. Existing studies commonly try to constrain atmospheric abundances, or to analyze what abundance patterns a given description of planet formation predicts.
P. Mollière +15 more
+12 more sources
3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet’s surface in large amounts of ultraviolet light.
Robert J. Ridgway +9 more
+8 more sources
Effects of Bulk Composition on the Atmospheric Dynamics on Close-in Exoplanets [PDF]
The Astrophysical Journal, 2017 Abstract Super Earths and mini Neptunes likely have a wide range of atmospheric compositions, ranging from low molecular mass atmospheres of H2 to higher molecular atmospheres of water, CO2, N2, or other species. Here we systematically investigate the effects of atmospheric bulk compositions on temperature and wind distributions for ...
Xi Zhang, Adam P. Showman
openalex +4 more sources
Atmospheric composition of exoplanets based on the thermal escape of gases and implications for habitability [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020 The detection of habitable exoplanets is an exciting scientific and technical challenge. Owing to the current and most likely long-lasting impossibility of performing in situ exploration of exoplanets, their study and hypotheses regarding their capability to host life will be based on the restricted low-resolution ...
Samuel Konatham +2 more
openalex +4 more sources
Reflected Spectroscopy of Small Exoplanets I: Determining the Atmospheric Composition of Sub-Neptunes Planets [PDF]
The Astronomical Journal, 2021 Abstract Direct imaging of widely separated exoplanets from space will obtain their reflected light spectra and measure their atmospheric properties, and small and temperate planets will be the focus for the next generation of telescopes. In this work, we used our Bayesian retrieval algorithm
Mario Damiano, Renyu Hu
openalex +5 more sources
Correction to: 3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability [PDF]
Monthly Notices of the Royal Astronomical Society, 2023 This is the final version. Available on open access from Oxford University Press via the DOI in this record ; The article for which this is the correction is available in ORE at http://hdl.handle.net/10871/131398 ; This is a correction to: R. J. Ridgway, M. Zamyatina, N. J. Mayne, J. Manners, F. H. Lambert, M. Braam, B. Drummond, E. Hébrard, P.
Ridgway, RJ +9 more
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Retrieval of atmospheric structure and composition of exoplanets from transit spectroscopy
, 2012 Recent spectroscopic observations of transiting exoplanets have permitted the derivation of the thermal structure and molecular abundances of H2O, CO, CO2, CH4, metallic oxides and alkali metals in these extreme atmospheres. Here, for the first time, a fully-fledged retrieval algorithm has been applied to exoplanet spectra to determine the thermal ...
Jae Min Lee
openalex +3 more sources
, 2023 The newly selected Venus missions EnVISION and VERITAS (Venus Emissivity, Radio Science, InSAR, Topography, and Spectroscopy) by ESA and NASA offer new opportunities for studying Venus but will also contribute to furthering our knowledge of Venus as an exoplanet.
John Lee Grenfell +8 more
openalex +2 more sources