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Articles by Étienne Artigau

Promise and Peril: Stellar Contamination and Strict Limits on the Atmosphere Composition of TRAPPIST-1c from JWST NIRISS Transmission Spectra
3 January 2025 by Michael Radica and others
Earth and Planetary Astrophysics
Transmission spectroscopy of WASP-52 b with JWST NIRISS: Water and helium atmospheric absorption, alongside prominent star-spot crossings
22 December 2024 by Marylou Fournier-Tondreau and others
Earth and Planetary Astrophysics
Hydroxyl Lines and Moonlight: a High Spectral Resolution Investigation of NIR skylines from Maunakea to guide NIR spectroscopic surveys
6 December 2024 by Frederick Dauphin and others
Instrumentation and Methods for Astrophysics
Gl 725A b: a potential super-Earth detected with SOPHIE and SPIRou in an M dwarf binary system at 3.5 pc
14 November 2024 by Pía Cortés-Zuleta and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Chemical Fingerprints of M Dwarfs: High-Resolution Spectroscopy on 31 M Dwarfs with SPIRou
11 November 2024 by Farbod Jahandar and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
New Cold Subdwarf Discoveries from Backyard Worlds and a Metallicity Classification System for T Subdwarfs
8 November 2024 by Adam Burgasser and others at LogoUCSD
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
SPIRou observations of the young planet-hosting star PDS 70
5 November 2024 by J. -F. Donati and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
Measuring Sub-Kelvin Variations in Stellar Temperature with High-Resolution Spectroscopy
11 September 2024 by Étienne Artigau and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
TOI-3568 b: a super-Neptune in the sub-Jovian desert
5 September 2024 by Eder Martioli and others at LogoASTRON
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Revisiting physical parameters of the benchmark brown dwarf LHS 6343 C through a HST/WFC3 secondary eclipse observation
9 August 2024 by William Frost and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
ANDES, the high resolution spectrograph for the ELT: science goals, project overview and future developments
19 July 2024 by Annapaola Marconi and others
Instrumentation and Methods for Astrophysics
Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS
21 June 2024 by Charles Cadieux and others
Earth and Planetary Astrophysics
Characterizing planetary systems with SPIRou: a temperate sub-Neptune exoplanet orbiting the nearby fully-convective star GJ 1289 and a candidate around GJ 3378
14 June 2024 by Claire Moutou and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
NIRPS first light and early science: breaking the 1 m/s RV precision barrier at infrared wavelengths
13 June 2024 by Étienne Artigau and others
Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics
Probing atmospheric escape through metastable He I triplet lines in 15 exoplanets observed with SPIRou
13 June 2024 by Adrien Masson and others
Earth and Planetary Astrophysics
The Near-Infrared Gatherer of Helium Transits (NIGHT)
29 May 2024 by Casper Farret Jentink and others
Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics
Atmospheric Waves Driving Variability and Cloud Modulation on a Planetary-Mass Object
20 May 2024 by Michael Plummer and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
SPIRou spectropolarimetry of the T Tauri star TW Hydrae: magnetic fields, accretion and planets
7 May 2024 by J. -F. Donati and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
Comprehensive High-resolution Chemical Spectroscopy of Barnard's Star with SPIRou
1 April 2024 by Farbod Jahandar and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
The First High-Contrast Images of Near High-Mass X-Ray Binaries with Keck/NIRC2
23 March 2024 by Myriam Prasow-Émond and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
Long-term monitoring of large-scale magnetic fields across optical and near-infrared domains with ESPaDOnS, Narval and SPIRou. The cases of EV Lac, DS Leo, and CN Leo
13 March 2024 by Sebastian Bellotti and others
Solar and Stellar Astrophysics
The classical T Tauri star CI Tau observed with SPIRou: magnetospheric accretion and planetary formation
4 March 2024 by J. -F. Donati and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
Muted Features in the JWST NIRISS Transmission Spectrum of Hot-Neptune LTT 9779 b
28 January 2024 by Michael Radica and others
Earth and Planetary Astrophysics
TOI-4860 b, a short-period giant planet transiting an M3.5 dwarf
12 January 2024 by Jose Manuel Almenara and others
Earth and Planetary Astrophysics
New Mass and Radius Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World
18 December 2023 by Charles Cadieux and others
Earth and Planetary Astrophysics
Near-Infrared Transmission Spectroscopy of HAT-P-18\,b with NIRISS: Disentangling Planetary and Stellar Features in the Era of JWST
18 December 2023 by Marylou Fournier-Tondreau and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Masses, Revised Radii, and a Third Planet Candidate in the "Inverted" Planetary System Around TOI-1266
6 November 2023 by Ryan Cloutier and others at LogoMcMaster University
Earth and Planetary Astrophysics
Measuring small-scale magnetic fields of 44 M dwarfs from SPIRou spectra with ZeeTurbo
12 October 2023 by P. Cristofari and others
Solar and Stellar Astrophysics
Monitoring the young planet host V1298 Tau with SPIRou: planetary system and evolving large-scale magnetic field
4 October 2023 by Benjamin Finociety and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
The development of HISPEC for Keck and MODHIS for TMT: science cases and predicted sensitivities
20 September 2023 by Quinn Konopacky and others
Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics
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