30 citations · 30 across the 7 of their papers we have counts for
8 papers · 1 filter
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…
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…
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…
How Land-Mass Distribution Influences the Atmospheric Dynamics of Tidally Locked Terrestrial Exoplanets
F. Sainsbury-Martinez, C. Walsh, G. J. Cooke +1
Interpretation of the ongoing efforts to simulate the atmospheres of potentially-habitable terrestrial exoplanets requires that we understand the underlying dynamics and chemistry…
Asymmetries in the simulated ozone distribution on TRAPPIST-1e due to orography
Anand Bhongade, Daniel R Marsh, Felix Sainsbury-Martinez +1
TRAPPIST-1e is a tidally locked rocky exoplanet orbiting the habitable zone of an M dwarf star. Upcoming observations are expected to reveal new rocky exoplanets and their atmosphe…
Lethal surface ozone concentrations are possible on habitable zone exoplanets
G. J. Cooke, D. R. Marsh, C. Walsh +1
Ozone () is important for the survival of life on Earth because it shields the surface from ionising ultraviolet (UV) radiation. However, the existence of $\textrm{O}…
Degenerate interpretations of O spectral features in exoplanet atmosphere observations due to stellar UV uncertainties: a 3D case study with TRAPPIST-1e
Gregory Cooke, Dan Marsh, Catherine Walsh +1
TRAPPIST-1e is a potentially habitable terrestrial exoplanet orbiting an ultra-cool M Dwarf star and is a key target for observations with the James Webb Space Telescope (JWST). On…
A revised lower estimate of ozone columns during Earth's oxygenated history
Gregory Cooke, Dan Marsh, Catherine Walsh +2
The history of molecular oxygen (O) in Earth's atmosphere is still debated; however, geological evidence supports at least two major episodes where O increased by an order…