3 papers
astro-ph.EP2025
The Oxygen Valve on Hydrogen Escape Since the Great Oxidation Event
Gregory J. Cooke, Dan R. Marsh, Catherine Walsh +2
The Great Oxidation Event (GOE) was a Myr transition circa 2.4 billion years ago that converted the Earth's anoxic atmosphere to one where molecular oxygen (O) was abunda…
astro-ph.EP2025
The Response of Planetary Atmospheres to the Impact of Icy Comets III: Impact Driven Atmospheric Escape
Felix Sainsbury-Martinez, Greg Cooke, Catherine Walsh
In an Earth-analogue atmosphere, water vapour is a key carrier of hydrogen in the lower atmosphere with its transport above the tropopause controlling the atmospheric hydrogen esca…
astro-ph.EP2024
The Response of Planetary Atmospheres to the Impact of Icy Comets I: Tidally-Locked exo-Earths
Felix Sainsbury-Martinez, Catherine Walsh, Greg Cooke
Impacts by rocky and icy bodies are thought to have played a key role in shaping the composition of solar system objects, including the Earth's habitability. Hence, it is likely th…