537 citations · 11.3k across the 206 of their papers we have counts for
9 papers · 1 filter
First Detection of Hydrogen in the β Pictoris Gas Disk
P. A. Wilson, A. Lecavelier des Etangs, A. Vidal-Madjar +6
The young and nearby star β Pictoris (β Pic) is surrounded by a debris disk composed of dust and gas known to host a myriad evaporating exocomets, planetesimals and at least one pl…
Refined architecture of the WASP-8 system: a cautionary tale for traditional Rossiter-McLaughlin analysis
V. Bourrier, H. M. Cegla, C. Lovis +1
Probing the trajectory of a transiting planet across the disk of its star through the analysis of its Rossiter-McLaughlin effect can be used to measure the differential rotation of…
No hydrogen exosphere detected around the super-Earth HD97658 b
Vincent Bourrier, David Ehrenreich, George King +5
The exoplanet HD97658b provides a rare opportunity to probe the atmospheric composition and evolution of moderately irradiated super-Earths. It transits a bright K star at a modera…
An evaporating planet in the wind: stellar wind interactions with the radiatively braked exosphere of GJ436 b
Vincent Bourrier, Alain Lecavelier des Etangs, David Ehrenreich +2
The warm Neptune GJ436b was observed with HST/STIS at three different epochs in the stellar Ly-alpha line, showing deep, repeated transits caused by a giant exosphere of neutral hy…
Strong XUV irradiation of the Earth-sized exoplanets orbiting the ultracool dwarf TRAPPIST-1
Peter J. Wheatley, Tom Louden, Vincent Bourrier +2
We present an XMM-Newton X-ray observation of TRAPPIST-1, which is an ultracool dwarf star recently discovered to host three transiting and temperate Earth-sized planets. We find t…
The SOPHIE search for northern extrasolar planets. XI. Three new companions and an orbit update: Giant planets in the habitable zone
R. F. Díaz, J. Rey, O. Demangeon +25
We report the discovery of three new substellar companions to solar-type stars, HD191806, HD214823, and HD221585, based on radial velocity measurements obtained at the Haute-Proven…