81 citations · 149 across the 4 of their papers we have counts for
6 papers
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…
A data-driven approach to constraining the atmospheric temperature structure of KELT-9b
L. Fossati, D. Shulyak, A. G. Sreejith +10
Context. Observationally constraining the atmospheric temperature-pressure (TP) profile of exoplanets is an important step forward for improving planetary atmosphere models, furthe…
Non-Local Thermodynamic Equilibrium Transmission Spectrum Modelling of HD209458b
Mitchell E. Young, Luca Fossati, Tommi T. Koskinen +3
Context - Exoplanetary upper atmospheres are low density environments where radiative processes can compete with collisional ones and introduce non-local thermodynamic equilibrium…
Near-ultraviolet Transmission Spectroscopy of HD 209458b: Evidence of Ionized Iron Beyond the Planetary Roche Lobe
Patricio E. Cubillos, Luca Fossati, Tommi Koskinen +5
The inflated transiting hot Jupiter HD 209458b is one of the best studied objects since the beginning of exoplanet characterization. Transmission observations of this system betwee…
Detection of ionized calcium in the atmosphere of the ultra-hot Jupiter KELT-9b
Jake D. Turner, Ernst J. W. de Mooij, Ray Jayawardhana +6
With a day-side temperature in excess of 4500K, comparable to a mid-K-type star, KELT-9b is the hottest planet known. Its extreme temperature makes KELT-9b a particularly interesti…
XUV Radiation from A-stars: Implications for Ultra-hot Jupiters
L. Fossati, T. Koskinen, J. D. Lothringer +3
Extremely irradiated, close-in planets to early-type stars might be prone to strong atmospheric escape. We review the literature showing that X-ray-to-optical measurements indicate…