activity
20152025
most citedThe Extreme Ultraviolet and X-Ray Sun in Time: High-Energy Evolutionary Tracks of a Solar-Like Star

251 citations · 1.4k across the 30 of their papers we have counts for

collaborators
Showing astro-ph.EPShow all

31 papers · 1 filter

astro-ph.EP2026

Self-consistent 1D modelling of Jupiter's upper atmosphere as an exoplanet analogue

Nils-Martin Robeling, Sudeshna Boro Saikia, Gwenaëlle Van Looveren +5

Jupiter's upper atmosphere provides a real-world laboratory for validating first-principles models of giant gaseous exoplanets and for constraining the key physical processes that…

astro-ph.EP202512 cited

Habitable Zone and Atmosphere Retention Distance (HaZARD) Stellar-evolution-dependent loss models of secondary atmospheres

Gwenaël Van Looveren, Sudeshna Boro Saikia, Oliver Herbort +4

A major open question in exoplanet research is whether secondary atmospheres are rare around Earth-sized rocky exoplanets. In this work we determine the distance at which an Earth-…

astro-ph.EP202146 cited

The young Sun's XUV-activity as a constraint for lower CO-limits in the Earth's Archean atmosphere

C. P. Johnstone, H. Lammer, K. G. Kislyakova +2

Despite their importance for determining the evolution of the Earth's atmosphere and surface conditions, the evolutionary histories of the Earth's atmospheric CO abundance duri…

astro-ph.EP20212 cited

Stellar winds and planetary atmospheres

Colin P. Johnstone

Interactions between the winds of stars and the magnetospheres and atmospheres of planets involve many processes, including the acceleration of particles, heating of upper atmosphe…

astro-ph.EP20203 cited

Observability of ultraviolet N I lines in the atmosphere of transiting Earth-like planets

Mitchell E. Young, Luca Fossati, Colin Johnstone +5

Nitrogen is a biosignature gas that cannot be maintained in its Earth-like ratio with CO under abiotic conditions. It has also proven to be notoriously hard to detect at optica…

astro-ph.EP202052 cited

Loss and fractionation of noble gas isotopes and moderately volatile elements from planetary embryos and early Venus, Earth and Mars

H. Lammer, M. Scherf, H. Kurokawa +12

Here we discuss the current state of knowledge on how atmospheric escape processes can fractionate noble gas isotopes and moderately volatile rock-forming elements that populate pr…