activity
19972021
most citedDetection of oxygen and carbon in the hydrodynamically escaping atmosphere of the extrasolar planet HD209458b

655 citations · 5.2k across the 84 of their papers we have counts for

collaborators

84 papers

astro-ph.EP2021★ 12 cited

The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits

O. D. S. Demangeon, S. Dalal, G. Hébrard +28

Context. Due to their low transit probability, the long-period planets are, as a population, only partially probed by transit surveys. Radial velocity surveys thus have a key role…

astro-ph.SR2021★ 29 cited

The EBLM project -- VIII. First results for M-dwarf mass, radius and effective temperature measurements using CHEOPS light curves

M. I. Swayne, P. F. L. Maxted, A. H. M. J. Triaud +93

The accuracy of theoretical mass, radius and effective temperature values for M-dwarf stars is an active topic of debate. Differences between observed and theoretical values have r…

astro-ph.SR2021★ 39 cited

TOI-1278 B: SPIRou unveils a rare Brown Dwarf Companion in Close-In Orbit around an M dwarf

Étienne Artigau, Guillaume Hébrard, Charles Cadieux +39

We present the discovery of an M brown dwarf (BD) companion to the M0V star TOI-1278. The system was first identified through a percent-deep transit in TESS…

astro-ph.EP2021

The SOPHIE search for northern extrasolar planets -- XVII. A wealth of new objects: Six cool Jupiters, three brown dwarfs, and 16 low-mass binary stars

S. Dalal, F. Kiefer, G. Hébrard +30

Distinguishing classes within substellar objects and understanding their formation and evolution need larger samples of substellar companions such as exoplanets, brown dwarfs, and…

astro-ph.EP2021★ 117 cited

Where is the Water? Jupiter-like C/H ratio but strong HO depletion found on Boötis b using SPIRou

Stefan Pelletier, Björn Benneke, Antoine Darveau-Bernier +18

The present-day envelope of gaseous planets is a relic of how these giant planets originated and evolved. Measuring their elemental composition therefore presents a powerful opport…

astro-ph.EP2020★ 65 cited

WASP-186 and WASP-187: two hot Jupiters discovered by SuperWASP and SOPHIE with additional observations by TESS

N. Schanche, G. Hébrard, A. Collier Cameron +15

We present the discovery of two new hot Jupiters identified from the WASP survey, WASP-186b and WASP-187b (TOI-1494.01 and TOI-1493.01). Their planetary nature was established from…