Atmospheres of rocky exoplanets

R Wordsworth, L Kreidberg - Annual Review of Astronomy and …, 2022 - annualreviews.org
Rocky planets are common around other stars, but their atmospheric properties remain
largely unconstrained. Thanks to a wealth of recent planet discoveries and upcoming …

Magma ocean, water, and the early atmosphere of Venus

A Salvador, G Avice, D Breuer, C Gillmann… - Space Science …, 2023 - Springer
The current state and surface conditions of the Earth and its twin planet Venus are drastically
different. Whether these differences are directly inherited from the earliest stages of …

The detectability and characterization of the TRAPPIST-1 exoplanet atmospheres with JWST

J Lustig-Yaeger, VS Meadows… - The Astronomical …, 2019 - iopscience.iop.org
Abstract The James Webb Space Telescope (JWST) will offer the first opportunity to
characterize terrestrial exoplanets with sufficient precision to identify high mean molecular …

Habitability and biosignatures of Hycean worlds

N Madhusudhan, AAA Piette… - The Astrophysical …, 2021 - iopscience.iop.org
We investigate a new class of habitable planets composed of water-rich interiors with
massive oceans underlying H 2-rich atmospheres, referred to here as Hycean worlds. With …

A comparative study of atmospheric chemistry with VULCAN

SM Tsai, M Malik, D Kitzmann, JR Lyons… - The Astrophysical …, 2021 - iopscience.iop.org
We present an update of the open-source photochemical kinetics code VULCAN to include
C–H–N–O–S networks and photochemistry. The additional new features are advection …

A coupled model of episodic warming, oxidation and geochemical transitions on early Mars

R Wordsworth, AH Knoll, J Hurowitz, M Baum… - Nature …, 2021 - nature.com
Reconciling the geology of Mars with models of atmospheric evolution remains a major
challenge. Martian geology is characterized by past evidence for episodic surface liquid …

Evolved climates and observational discriminants for the TRAPPIST-1 planetary system

AP Lincowski, VS Meadows, D Crisp… - The Astrophysical …, 2018 - iopscience.iop.org
The TRAPPIST-1 planetary system provides an unprecedented opportunity to study
terrestrial exoplanet evolution with the James Webb Space Telescope (JWST) and ground …

Potential Atmospheric Compositions of TRAPPIST-1 c Constrained by JWST/MIRI Observations at 15 μm

AP Lincowski, VS Meadows, S Zieba… - The Astrophysical …, 2023 - iopscience.iop.org
Abstract The first James Webb Space Telescope observations of TRAPPIST-1 c showed a
secondary eclipse depth of 421±94 ppm at 15 μm, which is consistent with a bare rock …

Mantle redox state drives outgassing chemistry and atmospheric composition of rocky planets

G Ortenzi, L Noack, F Sohl, CM Guimond, JL Grenfell… - Scientific reports, 2020 - nature.com
Volcanic degassing of planetary interiors has important implications for their corresponding
atmospheres. The oxidation state of rocky interiors affects the volatile partitioning during …

Vertically Resolved Magma Ocean–Protoatmosphere Evolution: H2, H2O, CO2, CH4, CO, O2, and N2 as Primary Absorbers

T Lichtenberg, DJ Bower, M Hammond… - Journal of …, 2021 - Wiley Online Library
The earliest atmospheres of rocky planets originate from extensive volatile release during
magma ocean epochs that occur during assembly of the planet. These establish the initial …