activity
20182026
most citedGround-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b

275 citations · 1.1k across the 27 of their papers we have counts for

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Showing 2022Show all

5 papers · 1 filter

astro-ph.EP2022★ 21 cited

Detection of Paschen absorption in the atmosphere of KELT-9 b: A new window into the atmospheres of ultra-hot Jupiters

A. Sánchez-López, L. Lin, I. A. G. Snellen +4

Hydrogen and helium transmission signals trace the upper atmospheres of hot gas-giant exoplanets, where the incoming stellar extreme ultraviolet and X-ray fluxes are deposited. Fur…

astro-ph.EP2022★ 27 cited

Transmission spectroscopy of MASCARA-1b with ESPRESSO: Challenges of overlapping orbital and Doppler tracks

N. Casasayas-Barris, F. Borsa, E. Pallé +32

Atmospheric studies at high spectral resolution have shown the presence of molecules, neutral and ionised metals, and hydrogen in the transmission spectrum of ultra-hot Jupiters, a…

astro-ph.EP2022★ 14 cited

The CH abundance in Jupiter's upper atmosphere

A. Sánchez-López, M. López-Puertas, M. García-Comas +3

Hydrocarbon species, and in particular CH, play a key role in the stratosphere--thermosphere boundary of Jupiter, which occurs around the -bar pressure level. Previous analy…

astro-ph.EP2022★ 36 cited

Searching for the origin of the Ehrenreich effect in ultra-hot Jupiters: Evidence for strong C/O gradients in the atmosphere of WASP-76b?

A. Sánchez-López, R. Landman, P. Mollière +3

Extreme temperature contrasts between the day and nightside of ultra-hot Jupiters result in significantly asymmetric atmospheres, with a large expansion occurring over a small rang…

astro-ph.EP2022★ 53 cited

A tentative detection of He I in the atmosphere of GJ 1214b

J. Orell-Miquel, F. Murgas, E. Pallé +27

The $\ion{He}{I}$ 10833\, triplet is a powerful tool for characterising the upper atmosphere of exoplanets and tracing possible mass loss. Here, we analysed one transit of GJ\,1…