activity
20142025
most citedDetection of ionized calcium in the atmosphere of the ultra-hot Jupiter KELT-9b

81 citations · 433 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.EP2025★ 4 cited

NLTE atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations

L. Fossati, A. G. Sreejith, T. Koskinen +6

We model the atmosphere of the ultra-hot Jupiter (UHJ) WASP-178b accounting for NLTE effects and compare synthetic transmission spectra with NUV and optical observations. We use th…

astro-ph.EP2023★ 24 cited

The GAPS programme at TNG. XLV. HI Balmer lines transmission spectroscopy and NLTE atmospheric modelling of the ultra-hot Jupiter KELT-20b/MASCARA-2b

L. Fossati, F. Biassoni, G. M. Cappello +27

We aim at extracting the transmission spectrum of the HI Balmer lines of the ultra-hot Jupiter (UHJ) KELT-20b/MASCARA-2b from observations and to further compare the results with w…

astro-ph.EP2022★ 2 cited

Mass loss by atmospheric escape from extremely close-in planets

Tommi Koskinen, Panayotis Lavvas, Chenliang Huang +3

We explore atmospheric escape from close-in exoplanets with the highest mass loss rates. First, we locate the transition from stellar X-ray and UV-driven escape to rapid Roche lobe…

astro-ph.EP2022★ 40 cited

Black Mirror: The impact of rotational broadening on the search for reflected light from 51 Pegasi b with high resolution spectroscopy

E. F. Spring, J. L. Birkby, L. Pino +6

The extreme contrast ratios between stars and their planets at optical wavelengths make it challenging to isolate the light reflected by exoplanet atmospheres. Yet, these reflectiv…

astro-ph.EP2021★ 45 cited

High-resolution detection of neutral oxygen and non-LTE effects in the atmosphere of KELT-9b

Francesco Borsa, Luca Fossati, Tommi Koskinen +2

Oxygen is a constituent of many of the most abundant molecules detected in exoplanetary atmospheres and a key ingredient for tracking how and where a planet formed. In particular,…

astro-ph.EP2021★ 66 cited

Non-local thermodynamic equilibrium effects determine the upper atmospheric temperature structure of the ultra-hot Jupiter KELT-9b

L. Fossati, M. E. Young, D. Shulyak +5

Several results indicate that the atmospheric temperature of the ultra-hot Jupiter KELT-9b in the main line formation region is a few thousand degrees higher than predicted by self…