122 citations · 1.3k across the 55 of their papers we have counts for
5 papers · 1 filter
A CHEOPS-enhanced view of the HD3167 system
V. Bourrier, A. Deline, A. Krenn +92
Much remains to be understood about the nature of exoplanets smaller than Neptune, most of which have been discovered in compact multi-planet systems. With its inner ultra-short pe…
Measuring precise radial velocities on individual spectral lines. III. Dependence of stellar activity signal on line formation temperature
K. Al Moulla, X. Dumusque, M. Cretignier +2
Context. To enable radial velocity (RV) precision on the order of ~0.1 m/s required for the detection of Earth-like exoplanets orbiting solar-type stars, the main obstacle lies in…
The polar orbit of the warm Neptune GJ436b seen with VLT/ESPRESSO
V. Bourrier, M. R. Zapatero Osorio, R. Allart +24
GJ436b might be the prototype of warm Neptunes that have undergone late migration induced by an outer companion. Precise determination of the orbital architecture of such systems i…
Stellar activity correction using PCA decomposition of shells
M. Cretignier, X. Dumusque, F. Pepe
Context. Stellar activity and instrumental signals are the main limitations to the detection of Earth-like planets using the radial velocity (RV) technique. Recent studies show tha…
The EXPRES Stellar Signals Project II. State of the Field in Disentangling Photospheric Velocities
Lily L. Zhao, Debra A. Fischer, Eric B. Ford +40
Measured spectral shifts due to intrinsic stellar variability (e.g., pulsations, granulation) and activity (e.g., spots, plages) are the largest source of error for extreme precisi…