activity
20052023
most citedConsistent dust and gas models for protoplanetary disks. I. Disk shape, dust settling, opacities, and PAHs

379 citations · 3.7k across the 78 of their papers we have counts for

collaborators

76 papers

astro-ph.EP2023★ 2 cited

TOI-4860 b, a short-period giant planet transiting an M3.5 dwarf

J. M. Almenara, X. Bonfils, E. M. Bryant +47

We report the discovery and characterisation of a giant transiting planet orbiting a nearby M3.5V dwarf (d = 80.4 pc, = 15.1 mag, =11.2 mag, R = 0.358 0.015 R$…

astro-ph.SR2023

Magnetic fields & rotation periods of M dwarfs from SPIRou spectra

J. -F. Donati, L. T. Lehmann, P. I. Cristofari +17

We present near-infrared spectropolarimetric observations of a sample of 43 weakly- to moderately-active M dwarfs, carried with SPIRou at the Canada-France-Hawaii Telescope in the…

astro-ph.EP2023★ 1 cited

Characterizing planetary systems with SPIRou: M-dwarf planet-search survey and the multiplanet systems GJ 876 and GJ 1148

C. Moutou, X. Delfosse, A. C. Petit +18

SPIRou is a near-infrared spectropolarimeter and a high-precision velocimeter. The SPIRou Legacy Survey collected data from February 2019 to June 2022, half of the time devoted to…

astro-ph.EP2023★ 40 cited

Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou

R. Allart, P. -B. Lemée-Joliecoeur, A. Y. Jaziri +31

The metastable helium triplet in the near-infrared (10833Å) is among the most important probes of exoplanet atmospheres. It can trace their extended outer layers and constrain mass…

astro-ph.EP2023★ 91 cited

Vanadium oxide and a sharp onset of cold-trapping on a giant exoplanet

Stefan Pelletier, Björn Benneke, Mohamad Ali-Dib +15

The abundance of refractory elements in giant planets can provide key insights into their formation histories. Due to the Solar System giants' low temperatures, refractory elements…

astro-ph.EP2023★ 21 cited

: a data-driven approach to correct for systematics in RV data -- Application to SPIRou data of the planet-hosting M dwarf GJ 251

M. Ould-Elhkim, C. Moutou, J-F. Donati +18

Context: Recent advances in the development of precise radial velocity (RV) instruments in the near-infrared (nIR) domain, such as SPIRou, have facilitated the study of M-type star…