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Space Weather-driven Variations in Ly Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b
O. Cohen, J. D. Alvarado-Gomez, J. J. Drake +3
We simulate the space environment around AU Microscopii b and the interaction between the magnetized stellar wind with a planetary atmospheric outflow for ambient stellar wind cond…
The dispersal of protoplanetary discs. II: Photoevaporation models with observationally derived irradiating spectra
Barbara Ercolano, Giovanni Picogna, Kristina Monsch +2
Young solar-type stars are known to be strong X-ray emitters and their X-ray spectra have been widely studied. X-rays from the central star may play a crucial role in the thermodyn…
Stellar Winds Drive Strong Variations in Exoplanet Evaporative Outflows and Transit Absorption Signatures
Laura M. Harbach, Sofia P. Moschou, Cecilia Garraffo +4
Stellar wind and photon radiation interactions with a planet can cause atmospheric depletion, which may have a potentially catastrophic impact on a planet's habitability. While the…
The High-Energy Radiation Environment Around a 10 Gyr M Dwarf: Habitable at Last?
Kevin France, Girish Duvvuri, Hilary Egan +20
High levels of X-ray and UV activity on young M dwarfs may drive rapid atmospheric escape on temperate, terrestrial planets orbiting within the liquid water habitable zone. However…
Atmospheric Escape Processes and Planetary Atmospheric Evolution
Guillaume Gronoff, Phil Arras, Suleiman M Baraka +17
The habitability of the surface of any planet is determined by a complex evolution of its interior, surface, and atmosphere. The electromagnetic and particle radiation of stars dri…
X-ray Studies of Exoplanets: A 2020 Decadal Survey White Paper
Scott J. Wolk, Jeremy J. Drake, Graziella Branduardi-Raymont +28
Over the last two decades, the discovery of exoplanets has fundamentally changed our perception of the universe and humanity's place within it. Recent work indicates that a solar s…