The effect of a small amount of H and H2O in magma-ocean rocky-exoplanets : atmospheric composition and escape [PDF]
Goldschmidt2023 abstracts, 2023 S. Charnoz +5 more
openalex +2 more sources
The Importance of Optical Wavelength Data on Atmospheric Retrievals of Exoplanet Transmission Spectra [PDF]
The Astronomical JournalExoplanet transmission spectra provide rich information about the chemical composition, clouds, and temperature structure of exoplanet atmospheres. Most exoplanet transmission spectra only span infrared wavelengths (≳1 μ m), which can preclude crucial ...
Charlotte Fairman +2 more
doaj +2 more sources
, 2014 More than a thousand exoplanets have been discovered over the last decade. Perhaps more excitingly, probing their atmospheres has become possible. We now have spectra of hot Jupiters like HD 189733b and HD 209458b, of Neptune-like planets like GJ1214b and even smaller planets are within reach.
Vivien Parmentier
openalex +3 more sources
A Catalog of Exoplanet Atmospheric Retrieval Codes [PDF]
Research Notes of the AAS, 2023 Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.
R. MacDonald, N. Batalha
semanticscholar +1 more source
POSEIDON: A Multidimensional Atmospheric Retrieval Code for Exoplanet Spectra [PDF]
Journal of Open Source Software, 2023 Spectroscopic observations of exoplanet atmospheres can reveal the chemical composition, temperature, cloud properties, and (potentially) the habitability of these distant worlds.
R. MacDonald
semanticscholar +1 more source
The effect of a small amount of hydrogen in the atmosphere of ultrahot magma-ocean planets: atmospheric composition and escape [PDF]
Astronomy & Astrophysics, 2023 Here we investigate how small amounts of hydrogen (much smaller than the mass of the exoplanet) above a magma ocean on a rocky exoplanet may modify the atmospheric chemistry and atmospheric escape.We use a chemical model of a magma ocean coupled to a gas
S. Charnoz +5 more
semanticscholar +1 more source
Atmospheric composition of WASP-85Ab with ESPRESSO/VLT observations [PDF]
Astronomy & Astrophysics, 2023 Transit spectroscopy is the most frequently used technique to reveal the atmospheric properties of exoplanets, while that at high resolution has the advantage to resolve the small Doppler shift of spectral lines, and the trace signal of the exoplanet ...
Zewen Jiang +11 more
semanticscholar +1 more source
Aura-3D: A Three-dimensional Atmospheric Retrieval Framework for Exoplanet Transmission Spectra [PDF]
Astrophysical Journal, 2022 Atmospheric retrievals of exoplanet transmission spectra allow constraints on the composition and structure of the day–night terminator region. Such retrievals in the past have typically assumed one-dimensional (1D) temperature structures which were ...
M. Nixon, N. Madhusudhan
semanticscholar +1 more source
How to Identify Exoplanet Surfaces Using Atmospheric Trace Species in Hydrogen-dominated Atmospheres [PDF]
Astrophysical Journal, 2021 Sub-Neptunes (R p ∼ 1.25–4 R Earth) remain the most commonly detected exoplanets to date. However, it remains difficult for observations to tell whether these intermediate-sized exoplanets have surfaces and where their surfaces are located.
Xinting 婷 Yu 余馨 +3 more
semanticscholar +1 more source
The Role of Atmospheric Composition in Defining the Habitable Zone Limits and Supporting E. coli Growth. [PDF]
Life (Basel)Studying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability).
Kuzucan A +6 more
europepmc +3 more sources