79 citations · 318 across the 9 of their papers we have counts for
9 papers
From CO- to HO-dominated atmospheres and back -- How mixed outgassing changes the volatile distribution in magma oceans around M dwarf stars
Ludmila Carone, Rory Barnes, Lena Noack +7
We investigate the impact of CO on TRAPPIST-1 e, f and g during the magma ocean stage. These potentially habitable rocky planets are currently the most accessible for astronomi…
The effect of lightning on the atmospheric chemistry of exoplanets and potential biosignatures
Patrick Barth, Eva E. Stüeken, Christiane Helling +2
Lightning has been suggested to play a role in triggering the occurrence of bio-ready chemical species. Future missions (PLATO, ARIEL, HWO, LIFE) and ground-based ELTs will investi…
Isotopic constraints on lightning as a source of fixed nitrogen in Earth's early biosphere
Patrick Barth, Eva E. Stüeken, Christiane Helling +4
Bioavailable nitrogen is thought to be a requirement for the origin and sustenance of life. Before the onset of biological nitrogen fixation, abiotic pathways to fix atmospheric N2…
The energetic particle environment of a GJ 436 b-like planet
D. Rodgers-Lee, P. B. Rimmer, A. A. Vidotto +8
A key first step to constrain the impact of energetic particles in exoplanet atmospheres is to detect the chemical signature of ionisation due to stellar energetic particles and Ga…
An upper limit on late accretion and water delivery in the Trappist-1 exoplanet system
Sean N. Raymond, Andre Izidoro, Emeline Bolmont +9
The Trappist-1 system contains seven roughly Earth-sized planets locked in a multi-resonant orbital configuration, which has enabled precise measurements of the planets' masses and…
Coexistence of CH4, CO2 and H2O in exoplanet atmospheres
P. Woitke, O. Herbort, Ch. Helling +4
We propose a classification of exoplanet atmospheres based on their H, C, O, N element abundances below about 600 K. Chemical equilibrium models were run for all combinations of H,…