Exoplanetary atmospheres—chemistry, formation conditions, and habitability
Characterizing the atmospheres of extrasolar planets is the new frontier in exoplanetary
science. The last two decades of exoplanet discoveries have revealed that exoplanets are …
science. The last two decades of exoplanet discoveries have revealed that exoplanets are …
Photochemically produced SO2 in the atmosphere of WASP-39b
Photochemistry is a fundamental process of planetary atmospheres that regulates the
atmospheric composition and stability. However, no unambiguous photochemical products …
atmospheric composition and stability. However, no unambiguous photochemical products …
Exoplanet clouds
C Helling - Annual Review of Earth and Planetary Sciences, 2019 - annualreviews.org
Clouds, which are common features in Earth's atmosphere, form in atmospheres of planets
that orbit other stars than our Sun, in so-called extrasolar planets or exoplanets. Exoplanet …
that orbit other stars than our Sun, in so-called extrasolar planets or exoplanets. Exoplanet …
Phosphine gas in the cloud decks of Venus
JS Greaves, A Richards, W Bains, PB Rimmer… - Nature …, 2021 - nature.com
Measurements of trace gases in planetary atmospheres help us explore chemical conditions
different to those on Earth. Our nearest neighbour, Venus, has cloud decks that are …
different to those on Earth. Our nearest neighbour, Venus, has cloud decks that are …
Atomic iron and titanium in the atmosphere of the exoplanet KELT-9b
To constrain the formation history of an exoplanet, we need to know its chemical
composition,–. With an equilibrium temperature of about 4,050 kelvin, the exoplanet KELT …
composition,–. With an equilibrium temperature of about 4,050 kelvin, the exoplanet KELT …
A comparative study of atmospheric chemistry with VULCAN
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 …
C–H–N–O–S networks and photochemistry. The additional new features are advection …
Sulfur dioxide in the mid-infrared transmission spectrum of WASP-39b
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 …
1,100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations …
Equilibrium chemistry down to 100 K-Impact of silicates and phyllosilicates on the carbon to oxygen ratio
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 …
chemical composition of gases in thermo-chemical equilibrium down to 100 K, with or …
Phosphine on Venus cannot be explained by conventional processes
The recent candidate detection of∼ 1 ppb of phosphine in the middle atmosphere of Venus
is so unexpected that it requires an exhaustive search for explanations of its origin …
is so unexpected that it requires an exhaustive search for explanations of its origin …
The origin of RNA precursors on exoplanets
Given that the macromolecular building blocks of life were likely produced photochemically
in the presence of ultraviolet (UV) light, we identify some general constraints on which stars …
in the presence of ultraviolet (UV) light, we identify some general constraints on which stars …