Can Isotopologues Be Used as Biosignature Gases in Exoplanet Atmospheres? [PDF]
Life, 2023 Isotopologue ratios are anticipated to be one of the most promising signs of life that can be observed remotely. On Earth, carbon isotopes have been used for decades as evidence of modern and early metabolic processes. In fact, carbon isotopes may be the
Shuhei Ono +2 more
exaly +7 more sources
Experimental Investigation of the Photochemical Production of Hydrocarbons in Warm Gas Giant Exoplanet Atmospheres [PDF]
The Astrophysical Journal, 2023 In warm (equilibrium temperature
Benjamin Fleury +5 more
doaj +2 more sources
Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres [PDF]
LifeThe unambiguous detection of biosignatures in exoplanet atmospheres is a primary objective for astrobiologists and exoplanet astronomers. The primary methodology is the observation of combinations of gases considered unlikely to coexist in an atmosphere ...
James R. Lyons
doaj +2 more sources
The Role of Atmospheric Composition in Defining the Habitable Zone Limits and Supporting E. coli Growth [PDF]
LifeStudying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability).
Asena Kuzucan +6 more
doaj +2 more sources
Lightning and charge processes in brown dwarf and exoplanet atmospheres [PDF]
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019 Paul Rimmer, Christiane Helling
exaly +2 more sources
High Accuracy Molecular Line Lists for Studies of Exoplanets and Other Hot Atmospheres
Frontiers in Astronomy and Space Sciences, 2022 The desire to characterize and model the atmospheres of the many extrasolar planets that have been discovered over the last three decades is a major driver of current astronomy.
Jonathan Tennyson, Sergey N. Yurchenko
doaj +1 more source
Simulations of idealised 3D atmospheric flows on terrestrial planets using LFRic-Atmosphere [PDF]
Geoscientific Model Development, 2023 We demonstrate that LFRic-Atmosphere, a model built using the Met Office's GungHo dynamical core, is able to reproduce idealised large-scale atmospheric circulation patterns specified by several widely used benchmark recipes.
D. E. Sergeev +16 more
doaj +1 more source
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution
The Astrophysical Journal Letters, 2023 Exoplanet atmosphere studies are often enriched by synergies with brown dwarf analogs. However, many key molecules commonly seen in brown dwarfs have yet to be confirmed in exoplanet atmospheres.
Laura Flagg +9 more
doaj +1 more source
Nonthermal Atmospheric Escape on the Kepler-11 “Super-Earths” Driven by Stellar Wind Sputtering
The Astrophysical Journal, 2023 Jeans escape or hydrodynamic escape is believed to dominate atmospheric loss for hot Jupiters. However, nonthermal mechanisms likely contribute substantially on hydrogen-rich “super-Earths” with relatively cold and extended atmospheres.
Hao Gu +4 more
doaj +1 more source