Exoplanet biosignatures: a review of remotely detectable signs of life

EW Schwieterman, NY Kiang, MN Parenteau… - Astrobiology, 2018 - liebertpub.com
In the coming years and decades, advanced space-and ground-based observatories will
allow an unprecedented opportunity to probe the atmospheres and surfaces of potentially …

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 …

Characterizing transiting exoplanet atmospheres with JWST

TP Greene, MR Line, C Montero… - The Astrophysical …, 2016 - iopscience.iop.org
We explore how well spectra from the James Webb Space Telescope (JWST) will likely
constrain bulk atmospheric properties of transiting exoplanets. We start by modeling the …

The Nature and Origins of Sub‐Neptune Size Planets

JL Bean, SN Raymond, JE Owen - Journal of Geophysical …, 2021 - Wiley Online Library
Planets intermediate in size between the Earth and Neptune, and orbiting closer to their host
stars than Mercury does the Sun, are the most common type of planet revealed by exoplanet …

Atmospheric reconnaissance of the habitable-zone Earth-sized planets orbiting TRAPPIST-1

J De Wit, HR Wakeford, NK Lewis, L Delrez… - Nature …, 2018 - nature.com
Seven temperate Earth-sized exoplanets readily amenable for atmospheric studies transit
the nearby ultracool dwarf star TRAPPIST-1 (refs,). Their atmospheric regime is unknown …

Phosphine as a biosignature gas in exoplanet atmospheres

C Sousa-Silva, S Seager, S Ranjan, JJ Petkowski… - Astrobiology, 2020 - liebertpub.com
A long-term goal of exoplanet studies is the identification and detection of biosignature
gases. Beyond the most discussed biosignature gas O2, only a handful of gases have been …

Aerosols in exoplanet atmospheres

P Gao, HR Wakeford, SE Moran, V Parmentier - 2021 - Wiley Online Library
Observations of exoplanet atmospheres have shown that aerosols, like in the solar system,
are common across a variety of temperatures and planet types. The formation and …

Equilibrium chemistry down to 100 K-Impact of silicates and phyllosilicates on the carbon to oxygen ratio

P Woitke, C Helling, GH Hunter, JD Millard… - Astronomy & …, 2018 - aanda.org
We have introduced a fast and versatile computer code, GGCHEM, to determine the
chemical composition of gases in thermo-chemical equilibrium down to 100 K, with or …

Sulfur dioxide in the mid-infrared transmission spectrum of WASP-39b

D Powell, AD Feinstein, EKH Lee, M Zhang, SM Tsai… - Nature, 2024 - nature.com
The recent inference of sulfur dioxide (SO2) in the atmosphere of the hot (approximately
1,100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations …

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 …