316 citations · 3.2k across the 57 of their papers we have counts for
7 papers · 1 filter
Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO
S. Sulis, M. Lendl, H. Cegla +83
Stellar granulation generates fluctuations in photometric and spectroscopic data whose properties depend on the stellar type, composition, and evolutionary state. In this study, we…
Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) VII. Detection of sodium on the long-transiting inflated sub-Saturn KELT-11 b
Dany Mounzer, Christophe Lovis, Julia V. Seidel +19
KELT-11b is an inflated sub-Saturn with a hot atmosphere and that orbits a bright evolved subgiant star, making it a prime choice for atmospheric characterization, but that transit…
The Hot Neptune WASP-166~b with ESPRESSO I: Refining the Planetary Architecture and Stellar Variability
L. Doyle, H. M. Cegla, E. Bryant +24
In this paper, we present high-resolution spectroscopic transit observations from ESPRESSO of the super-Neptune WASP-166~b. In addition to spectroscopic ESPRESSO data, we analyse p…
Spectral Line Depth Variability in Radial Velocity Spectra
Alexander Wise, Peter Plavchan, Xavier Dumusque +2
Stellar active regions, including spots and faculae, can create radial velocity (RV) signals that interfere with the detection and mass measurements of low mass exoplanets. In doin…
Optimal parameter space for detecting stellar differential rotation and centre-to-limb convective variations
N. Roguet-Kern, H. M. Cegla, V. Bourrier
The goal of this paper is to investigate the optimal parameters space for using the reloaded Rossiter-McLaughlin technique to detect differential rotation (DR) and centre-to-limb c…
The Hot Neptune WASP-166 b with ESPRESSO II: Confirmation of atmospheric sodium
J. V. Seidel, H. M. Cegla, L. Doyle +8
The hot Neptune desert, a distinct lack of highly irradiated planets in the size range of Neptune, remains one of the most intriguing results of exoplanet population studies. A dee…