EA
E. Artigau
astro-ph.EPastro-ph.SRastro-ph.IMastro-phastro-ph.GAastro-ph.HEastro-ph.COphysics.ao-phphysics.geo-ph
On Valency
published · living versionsW_2536fkee·v1 · currentpublished
World-leading science with SPIRou - the nIR spectropolarimeter / high-precision velocimeter for CFHT
with X. Delfosse, J. -F. Donati, D. Kouach, G. Hébrard +20
1 version
Preprints & journals
226 papers in the corpus · 2006–2026Refurbishment and Cryocooler Upgrade of the CPAPIR Wide-Field Near-Infrared Camera: Design, Integration, and Lessons Learned2610.20555v1 · Philippe Vallee, Jonathan St-Antoine, Lison Malo et al.2026 · 0 citationsarXiv
SPIRou near-infrared spectropolarimetry of the ultra-hot Jupiter KELT-9b: tentative detection of the planet magnetic field2610.05951v1 · Alexis Lavail, Florian Debras, David Rog'e Royo et al.2026 · 0 citationsarXiv
A temperate sub-Neptune transiting the M4 Dwarf TOI-210 identified by NIRPS and TESS -- Uncovering hidden M-dwarf planetary systems in the near-infrared2609.35747v1 · C. Cadieux, B. N. Skinner, F. Bouchy et al.2026 · 0 citationsarXiv
Upside down: GJ3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS2609.24870v1 · Y. Carteret, V. Bourrier, L. Parc et al.2026 · 0 citationsA&A, Volume 713, September 2026, L15
POSTELLAR: Posterior Stellar Spectrum Sampling - An Alternative to Approximate Stellar Spectra for Exoplanetary Analysis2609.05599v1 · Dhvani Doshi, Nicolas B. Cowan, Yashar Hezaveh et al.2026 · 0 citationsarXiv
Night-sky emission correction techniques for high-resolution spectroscopy: Demonstration with NIRPS2609.03374v1 · Avidaan Srivastava, Francois Bouchy, Xavier Dumusque et al.2026 · 0 citationsarXiv
Radial velocity detection of the TRAPPIST-1 planetary system with SPIRou and NIRPS2609.03006v1 · Alexandrine L'Heureux, Ren'e Doyon, Charles Cadieux et al.2026 · 0 citationsarXiv
No Persistent Helium Absorption in LHS 1140 b: Four JWST/NIRISS SOSS Transits and Multi-epoch Stellar He I Variability2608.19120v1 · Am'elie Gressier, Charles Cadieux, Ren'e Doyon et al.2026 · 0 citationsarXiv
Atmospheric Reconnaissance of TRAPPIST-1 f with JWST NIRISS SOSS: No Evidence for the Transit Light Source Effect2608.17207v2 · Olivia Lim, Ren'e Doyon, Ryan J. MacDonald et al.2026 · 0 citationsarXiv
ANDES, the high-resolution spectrograph for the ELT: design and performance analysis of the YJH spectrograph2607.22388v2 · Vinooja Thurairethinam, David Lee, James Stevenson et al.2026 · 0 citationsarXiv
Statistics on the population of distant substellar companions to nearby stars2607.20673v1 · Souleymane Ouedraogo, 'Etienne Artigau, Si'e Zacharie Kam et al.2026 · 0 citationsarXiv
Silicate Clouds, SiO, and Molecular Trends across the L-T Sequence: A JWST/MIRI LRS Spectral Library of Brown Dwarfs2607.15521v1 · Sam Barber, Stanimir Metchev, Genaro Su'arez et al.2026 · 0 citationsMon Not R Astron Soc (2026)
Revisiting TOI-4438 and TOI-442 planetary systems with new observations from SPIRou and TESS2607.13333v1 · J. Serrano Bell, G. H'ebrard, E. Martioli et al.2026 · 0 citationsarXiv
Stellar Multiplicity of M Dwarfs with Short-period Giant Planets, and the Characterization of TOI-5628Ab2607.10177v1 · Tianjun Gan, Alexandrine L'Heureux, Charles Cadieux et al.2026 · 0 citationsarXiv
The impact of interpolation in high-resolution spectroscopy -- The overlooked role of interpolation in radial velocity extraction2606.29569v1 · A. M. Silva, D. Doshi, K. Al Moulla et al.2026 · 0 citationsarXiv
The breaking of cold traps and onset of titanium in ultra-hot Jupiter atmospheres: WASP-189b in context2606.15934v1 · Stefan Pelletier, Romain Allart, Valentina Vaulato et al.2026 · 0 citationsA&A, 711, A119 (2026)
An Aligned Very-Low-Mass Star Orbiting an M dwarf and Obliquity Patterns Across Giant Planets, Brown Dwarfs, and Binary Stars2604.06595v1 · Tianjun Gan, Alexandrine L'Heureux, 'Etienne Artigau et al.2026 · 1 citationarXiv
Super-Earth masses and stellar abundances from NIRPS reveal tentative evidence for water-rich formation around M dwarfs2604.07447v1 · Drew Weisserman, Nicole Gromek, Ryan Cloutier et al.2026 · 4 citationsA&A 709, A165 (2026)
Magnetic field measurements in a sample of Class I and flat-spectrum protostars observed with SPIRou2603.17482v2 · L. Drouglazet, E. Alecian, A. Sousa et al.2026 · 2 citationsA&A 708, A371 (2026)
TOI-4552 b: A new ultra-short period rocky world revealed by NIRPS and TESS2603.18233v1 · Avidaan Srivastava, Ren'e Doyon, Francois Bouchy et al.2026 · 1 citationA&A 709, A73 (2026)
Confirmation of the hot super-Neptune TOI-672 b with NIRPS and HARPS and Insights into the Neptunian desert around M dwarfs2603.12345v1 · Ares Osborn, Ryan Cloutier, Vincent Bourrier et al.2026 · 1 citationA&A 709, A23 (2026)
Tempawral: A Time-Resolved Retrieval Framework for Variable Brown Dwarfs and Exoplanets2602.18984v1 · Fei Wang, Ben Burningham, Stuart Littlefair et al.2026 · 2 citationsarXiv
The SPIRou Legacy Survey: Detection of a nearby world orbiting in the habitable zone of Gl725B achieved by correcting strong telluric contamination in near-infrared radial velocities with WAPITI2601.22815v1 · M. Ould-Elhkim, C. Moutou, J.-F. Donati et al.2026 · 2 citationsarXiv
Densities of small planets around the M dwarfs TOI-4336 A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate2601.22115v2 · L'ena Parc, Charles Cadieux, Nolan Grieves et al.2026 · 1 citationarXiv
NIRPS tightens the mass estimate of GJ 3090 b and detects a planet near the stellar rotation period2601.09330v2 · Pierrot Lamontagne, Drew Weisserman, Charles Cadieux et al.2026 · 1 citationA&A, 706 (2026) A278
A complex structure of escaping helium spanning more than half the orbit of the ultra-hot Jupiter WASP-121 b.41361179 · Allart, Romain, Coulombe, Louis-Philippe, Carteret, Yann et al.2025 · 7 citationsNature communications. 2025;16(1):10822
NIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant2510.14927v1 · L'ena Parc, Francois Bouchy, Neil J. Cook et al.2025 · 5 citationsA&A, 702, A138 (2025)
Reanalysis of the eclipses of LHS 1140 c: No evidence of an atmosphere and implications for the internal structure of the planet2510.11397v1 · Alexandra Rochon, 'Etienne Artigau, Drew Weisserman et al.2025 · 2 citationsarXiv
Characterizing planetary systems with SPIRou: questions about the magnetic cycle of 55 Cnc A and two new planets around B2510.11523v1 · C. Moutou, P. Petit, P. Charpentier et al.2025 · 0 citationsarXiv
TOI-3288 b and TOI-4666 b: two gas giants transiting low-mass stars characterised by NIRPS2510.11703v2 · Yolanda G. C. Frensch, Francois Bouchy, Gaspare Lo Curto et al.2025 · 5 citationsarXiv
Mapping the Cloud-Driven Atmospheric Dynamics & Chemistry of an Isolated Exoplanet Analog with Harmonic Signatures2510.02260v4 · Michael K. Plummer, Francis P. Cocchini, Peter A. Kearns et al.2025 · 0 citationsarXiv
Chromaticity of stellar activity in radial velocities : Anti-correlated families of lines on the M dwarf EV Lac with SPIRou and SOPHIE2509.17911v1 · Pierre Larue, Xavier Delfosse, Andres Carmona et al.2025 · 6 citationsA&A, 701, A216 (2025)
Mapping atmospheric features of the planetary-mass brown dwarf SIMP 0136 with JWST NIRISS2509.00149v2 · Roman Akhmetshyn, Etienne Artigau, Nicolas B. Cowan et al.2025 · 4 citationsApJ, 993, 237 (2025)
Atmospheric composition and circulation of the ultra-hot Jupiter WASP-121b with joint NIRPS, HARPS and CRIRES+ transit spectroscopy2509.00151v1 · Valentina Vaulato, Melissa J. Hobson, Romain Allart et al.2025 · 3 citationsarXiv
The Interpolation Constraint in the RV Analysis of M-Dwarfs Using Empirical Templates2508.10980v2 · Dhvani Doshi, Nicolas B. Cowan, 'Etienne Artigau et al.2025 · 3 citationsarXiv
Quantifying thermal water dissociation in the dayside photosphere of WASP-121 b using NIRPS2508.06626v1 · Luc Bazinet, Romain Allart, Bjorn Benneke et al.2025 · 4 citationsA&A 701, A276 (2025)
Rotational modulation and long-term evolution of the small-scale magnetic fields of M dwarfs observed with SPIRou2508.04569v1 · P. I. Cristofari, J.-F. Donati, S. Bellotti et al.2025 · 8 citationsarXiv
Diving into the planetary system of Proxima with NIRPS -- Breaking the metre per second barrier in the infrared2507.21751v1 · Alejandro Su'arez Mascareno, 'Etienne Artigau, Lucile Mignon et al.2025 · 12 citations2025, A&A, 700, A11
NIRPS joining HARPS at ESO 3.6 m. On-sky performance and science objectives2507.21767v1 · Francois Bouchy, Rene Doyon, Francesco Pepe et al.2025 · 30 citationsA&A, 700, A10 (2025)
Hydride ion continuum hides absorption signatures in the NIRPS near-infrared transmission spectrum of the ultra-hot gas giant WASP-189b2507.21229v1 · Valentina Vaulato, Stefan Pelletier, David Ehrenreich et al.2025 · 9 citationsarXiv
Blind search for activity-sensitive lines in the near-infrared using HARPS and NIRPS observations of Proxima and Gl 5812507.21262v1 · Joao Gomes da Silva, Elisa Delgado-Mena, Nuno C. Santos et al.2025 · 4 citationsarXiv
NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b2507.21284v1 · Romain Allart, Yann Carteret, Vincent Bourrier et al.2025 · 7 citationsarXiv
A New Brown Dwarf Orbiting an M star and An Investigation on the Eccentricity Distribution of Transiting Long-Period Brown Dwarfs2507.09461v1 · Tianjun Gan, Charles Cadieux, Shigeru Ida et al.2025 · 5 citationsarXiv
Detailed Architecture of the L 98-59 System and Confirmation of a Fifth Planet in the Habitable Zone2507.09343v2 · Charles Cadieux, Alexandrine L'Heureux, Caroline Piaulet-Ghorayeb et al.2025 · 8 citationsarXiv
Six-yr SPIRou monitoring of the young planet-host dwarf AU Mic2507.01746v1 · J.-F. Donati, P.I. Cristofari, C. Moutou et al.2025 · 0 citationsarXiv
A systematic bias in template-based RV extraction algorithms2506.23261v1 · Andr'e M. Silva, N. C. Santos, J. P. Faria et al.2025 · 9 citationsA&A 700, A93 (2025)
Characterizing planetary systems with SPIRou: Detection of a sub-Neptune in a 6-day period orbit around the M dwarf Gl 4102504.03572v2 · A. Carmona, X. Delfosse, M. Ould-Elhkim et al.2025 · 4 citationsA&A 700, A222 (2025)
A Moderate Albedo from Reflecting Aerosols on the Dayside of WASP-80 b Revealed by JWST/NIRISS Eclipse Spectroscopy2503.15665v1 · Kim Morel, Louis-Philippe Coulombe, Jason F. Rowe et al.2025 · 3 citationsAJ 169, 277 (2025)
The SPIRou Legacy Survey: near-infrared and optical radial velocity analysis of Gl 480 and Gl 382 using SPIRou, HARPS and CARMENES spectrographs2502.07086v2 · M. Ould-Elhkim, C. Moutou, J-F. Donati et al.2025 · 2 citationsA&A 696, A152 (2025)
Highly reflective white clouds on the western dayside of an exo-Neptune2501.14016v1 · Louis-Philippe Coulombe, Michael Radica, Bjorn Benneke et al.2025 · 39 citationsarXiv
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