Exoplanet biosignatures: understanding oxygen as a biosignature in the context of its environment
VS Meadows, CT Reinhard, GN Arney… - Astrobiology, 2018 - liebertpub.com
We describe how environmental context can help determine whether oxygen (O2) detected
in extrasolar planetary observations is more likely to have a biological source. Here we …
in extrasolar planetary observations is more likely to have a biological source. Here we …
Populating the periodic table: Nucleosynthesis of the elements
JA Johnson - Science, 2019 - science.org
Elements heavier than helium are produced in the lives and deaths of stars. This Review
discusses when and how the process of nucleosynthesis made elements. High-mass stars …
discusses when and how the process of nucleosynthesis made elements. High-mass stars …
Impact of space weather on climate and habitability of terrestrial-type exoplanets
VS Airapetian, R Barnes, O Cohen… - International Journal of …, 2020 - cambridge.org
The search for life in the Universe is a fundamental problem of astrobiology and modern
science. The current progress in the detection of terrestrial-type exoplanets has opened a …
science. The current progress in the detection of terrestrial-type exoplanets has opened a …
The chemical homogeneity of Sun-like stars in the solar neighborhood
The compositions of stars are a critical diagnostic tool for many topics in astronomy such as
the evolution of our Galaxy, the formation of planets, and the uniqueness of the Sun …
the evolution of our Galaxy, the formation of planets, and the uniqueness of the Sun …
Oxygen fugacities of extrasolar rocks: Evidence for an Earth-like geochemistry of exoplanets
Oxygen fugacity is a measure of rock oxidation that influences planetary structure and
evolution. Most rocky bodies in the Solar System formed at oxygen fugacities approximately …
evolution. Most rocky bodies in the Solar System formed at oxygen fugacities approximately …
Inward migration of the TRAPPIST-1 planets as inferred from their water-rich compositions
Multiple planet systems provide an ideal laboratory for probing exoplanet composition,
formation history and potential habitability. For the TRAPPIST-1 planets, the planetary radii …
formation history and potential habitability. For the TRAPPIST-1 planets, the planetary radii …
Plausible constraints on the range of bulk terrestrial exoplanet compositions in the solar neighborhood
RJ Spaargaren, HS Wang, SJ Mojzsis… - The Astrophysical …, 2023 - iopscience.iop.org
Rocky planet compositions regulate planetary evolution by affecting core sizes, mantle
properties, and melting behaviors. Yet, quantitative treatments of this aspect of exoplanet …
properties, and melting behaviors. Yet, quantitative treatments of this aspect of exoplanet …
Exoplanet mineralogy
KD Putirka - Reviews in Mineralogy and Geochemistry, 2024 - pubs.geoscienceworld.org
Mineral properties hold dominion over planetary behavior as their physical and thermal
properties control mantle circulation, plate tectonics, melting behavior, and crustal …
properties control mantle circulation, plate tectonics, melting behavior, and crustal …
From stars to diverse mantles, melts, crusts, and atmospheres of rocky exoplanets
CM Guimond, H Wang, F Seidler… - … in Mineralogy and …, 2024 - pubs.geoscienceworld.org
The advent of radial velocity (RV) and transit photometry method has resulted in the
detection of more than 5000 exoplanets since 1995. Of these detected planets, a significant …
detection of more than 5000 exoplanets since 1995. Of these detected planets, a significant …
Influence of sub-and super-solar metallicities on the composition of solid planetary building blocks
B Bitsch, C Battistini - Astronomy & Astrophysics, 2020 - aanda.org
The composition of the protoplanetary disc is thought to be linked to the composition of the
host star, where a higher overall metallicity provides the building blocks for planets …
host star, where a higher overall metallicity provides the building blocks for planets …