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Education and qualifications (1)

Université de Montréal: Montreal, QC, CA

2000-09-01 to 2006-05-15 | PhD (physique)
Education
Source: Self-asserted source
Etienne Artigau

Works (47)

The Gl 229 System Revisited with the Line-by-line Framework: Planetary Signals Now Appear as Stellar Activity Ghosts

The Astronomical Journal
2025-03-03 | Journal article
Contributors: Ariane Deslières; Charles Cadieux; René Doyon; Étienne Artigau; Neil J. Cook; Clémence Fontanive; Thomas Vandal
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Hydroxyl Lines and Moonlight: A High Spectral Resolution Investigation of Near-infrared Skylines from Maunakea to Guide Near-infrared Spectroscopic Surveys

The Astronomical Journal
2025-02-03 | Journal article
Contributors: Frederick Dauphin; Andreea Petric; Étienne Artigau; Andrew W. Stephens; Neil James Cook; Steven Businger; Nicolas Flagey; Jennifer Marshall; Michelle Ntampaka; Swara Ravindranath et al.
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Promise and Peril: Stellar Contamination and Strict Limits on the Atmosphere Composition of TRAPPIST-1 c from JWST NIRISS Transmission Spectra

The Astrophysical Journal Letters
2025-01-20 | Journal article
Contributors: Michael Radica; Caroline Piaulet-Ghorayeb; Jake Taylor; Louis-Philippe Coulombe; Björn Benneke; Loic Albert; Étienne Artigau; Nicolas B. Cowan; René Doyon; David Lafrenière et al.
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Chemical Fingerprints of M Dwarfs: High-resolution Spectroscopy on 31 M Dwarfs with SPIRou

The Astrophysical Journal
2025-01-01 | Journal article
Contributors: Farbod Jahandar; René Doyon; Étienne Artigau; Neil J. Cook; Charles Cadieux; Jean-François Donati; Nicolas B. Cowan; Ryan Cloutier; Stefan Pelletier; Alan Alves-Brito et al.
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Measuring Sub-Kelvin Variations in Stellar Temperature with High-resolution Spectroscopy

The Astronomical Journal
2024-12-01 | Journal article
Contributors: Étienne Artigau; Charles Cadieux; Neil J. Cook; René Doyon; Laurie Dauplaise; Luc Arnold; Maya Cadieux; Jean-François Donati; Paul Cristofari; Xavier Delfosse et al.
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Revisiting Physical Parameters of the Benchmark Brown Dwarf LHS 6343 C through a Hubble Space Telescope/WFC3 Secondary-eclipse Observation

The Astrophysical Journal
2024-09-01 | Journal article
Contributors: William Frost; Loïc Albert; René Doyon; Jonathan Gagné; Benjamin T. Montet; Clémence Fontanive; Étienne Artigau; John Asher Johnson; Billy Edwards; Björn Benneke
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Atmospheric Waves Driving Variability and Cloud Modulation on a Planetary-mass Object

The Astrophysical Journal
2024-07-01 | Journal article
Contributors: Michael K. Plummer; Ji 吉 Wang 王; Étienne Artigau; René Doyon; Genaro Suárez
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Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS

The Astrophysical Journal Letters
2024-07-01 | Journal article
Contributors: Charles Cadieux; René Doyon; Ryan J. MacDonald; Martin Turbet; Étienne Artigau; Olivia Lim; Michael Radica; Thomas J. Fauchez; Salma Salhi; Lisa Dang et al.
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Comprehensive High-resolution Chemical Spectroscopy of Barnard’s Star with SPIRou

The Astrophysical Journal
2024-05-01 | Journal article
Contributors: Farbod Jahandar; René Doyon; Étienne Artigau; Neil J. Cook; Charles Cadieux; David Lafrenière; Thierry Forveille; Jean-François Donati; Pascal Fouqué; Andrés Carmona et al.
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The First High-contrast Images of Near High-mass X-Ray Binaries with Keck/NIRC2

The Astrophysical Journal
2024-05-01 | Journal article
Contributors: M. Prasow-Émond; J. Hlavacek-Larrondo; K. Fogarty; É. Artigau; D. Mawet; P. Gandhi; J. F. Steiner; J. Rameau; D. Lafrenière; A. Fabian et al.
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Near-infrared transmission spectroscopy of HAT-P-18 b with NIRISS: Disentangling planetary and stellar features in the era of JWST

Monthly Notices of the Royal Astronomical Society
2024-01-23 | Journal article
Contributors: Marylou Fournier-Tondreau; Ryan J MacDonald; Michael Radica; David Lafrenière; Luis Welbanks; Caroline Piaulet; Louis-Philippe Coulombe; Romain Allart; Kim Morel; Étienne Artigau et al.
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Masses, revised radii, and a third planet candidate in the ‘Inverted’ planetary system around TOI-1266

Monthly Notices of the Royal Astronomical Society
2023-11-27 | Journal article
Contributors: Ryan Cloutier; Michael Greklek-McKeon; Serena Wurmser; Collin Cherubim; Erik Gillis; Andrew Vanderburg; Sam Hadden; Charles Cadieux; Étienne Artigau; Shreyas Vissapragada et al.
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A Massive Hot Jupiter Orbiting a Metal-rich Early M Star Discovered in the TESS Full-frame Images

The Astronomical Journal
2023-10-01 | Journal article
Contributors: Tianjun Gan; Charles Cadieux; Farbod Jahandar; Allona Vazan; Sharon X. Wang; Shude Mao; Jaime A. Alvarado-Montes; D. N. C. Lin; Étienne Artigau; Neil J. Cook et al.
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Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou

Astronomy & Astrophysics
2023-09 | Journal article
Contributors: R. Allart; P.-B. Lemée-Joliecoeur; A. Y. Jaziri; D. Lafrenière; E. Artigau; N. Cook; A. Darveau-Bernier; L. Dang; C. Cadieux; A. Boucher et al.
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Atmospheric Reconnaissance of TRAPPIST-1 b with JWST/NIRISS: Evidence for Strong Stellar Contamination in the Transmission Spectra

The Astrophysical Journal Letters
2023-09-01 | Journal article
Contributors: Olivia Lim; Björn Benneke; René Doyon; Ryan J. MacDonald; Caroline Piaulet; Étienne Artigau; Louis-Philippe Coulombe; Michael Radica; Alexandrine L’Heureux; Loïc Albert et al.
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Wapiti: A data-driven approach to correct for systematics in RV data

Astronomy & Astrophysics
2023-07 | Journal article
Contributors: M. Ould-Elhkim; C. Moutou; J.-F. Donati; É. Artigau; P. Fouqué; N.J. Cook; A. Carmona; P. I. Cristofari; E. Martioli; F. Debras et al.
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The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. III. Single Object Slitless Spectroscopy

Publications of the Astronomical Society of the Pacific
2023-07-01 | Journal article
Contributors: Loïc Albert; David Lafrenière; René Doyon; Étienne Artigau; Kevin Volk; Paul Goudfrooij; André R. Martel; Michael Radica; Jason Rowe; Néstor Espinoza et al.
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A sub-Neptune planet around TOI-1695 discovered and characterized with SPIRou and TESS

Astronomy & Astrophysics
2023-02 | Journal article
Contributors: F. Kiefer; G. Hébrard; E. Martioli; E. Artigau; R. Doyon; J.-F. Donati; C. Cadieux; A. Carmona; D. R. Ciardi; P. I. Cristofari et al.
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New insights on the near-infrared veiling of young stars using CFHT/SPIRou data

Astronomy & Astrophysics
2023-02 | Journal article
Contributors: A. P. Sousa; J. Bouvier; S. H. P. Alencar; J.-F. Donati; C. Dougados; E. Alecian; A. Carmona; L. Rebull; N. Cook; E. Artigau et al.
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Revisiting radial velocity measurements of the K2-18 system with the line-by-line framework

Monthly Notices of the Royal Astronomical Society
2022-11-07 | Journal article
Contributors: Michael Radica; Étienne Artigau; David Lafreniére; Charles Cadieux; Neil J Cook; René Doyon; Pedro J Amado; José A Caballero; Thomas Henning; Andreas Quirrenbach et al.
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APERO: A PipelinE to Reduce Observations—Demonstration with SPIRou

Publications of the Astronomical Society of the Pacific
2022-11-01 | Journal article
Contributors: Neil James Cook; Étienne Artigau; René Doyon; Melissa Hobson; Eder Martioli; François Bouchy; Claire Moutou; Andres Carmona; Chris Usher; Pascal Fouqué et al.
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Characterizing and Mitigating the Impact of Telluric Absorption in Precise Radial Velocities

The Astronomical Journal
2022-11-01 | Journal article
Contributors: Sharon Xuesong 雪凇 Wang 王; Natasha Latouf; Peter Plavchan; Bryson Cale; Cullen Blake; Étienne Artigau; Carey M. Lisse; Jonathan Gagné; Jonathan Crass; Angelle Tanner
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ATOCA: an Algorithm to Treat Order Contamination. Application to the NIRISS SOSS Mode

Publications of the Astronomical Society of the Pacific
2022-09-01 | Journal article
Contributors: Antoine Darveau-Bernier; Loïc Albert; Geert Jan Talens; David Lafrenière; Michael Radica; René Doyon; Neil J. Cook; Jason F. Rowe; Romain Allart; Étienne Artigau et al.
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Line-by-line Velocity Measurements: an Outlier-resistant Method for Precision Velocimetry

The Astronomical Journal
2022-09-01 | Journal article
Contributors: Étienne Artigau; Charles Cadieux; Neil J. Cook; René Doyon; Thomas Vandal; Jean-François Donati; Claire Moutou; Xavier Delfosse; Pascal Fouqué; Eder Martioli et al.
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TOI-1452 b: SPIRou and TESS Reveal a Super-Earth in a Temperate Orbit Transiting an M4 Dwarf

The Astronomical Journal
2022-09-01 | Journal article
Contributors: Charles Cadieux; René Doyon; Mykhaylo Plotnykov; Guillaume Hébrard; Farbod Jahandar; Étienne Artigau; Diana Valencia; Neil J. Cook; Eder Martioli; Thomas Vandal et al.
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The First High-contrast Images of X-Ray Binaries: Detection of Candidate Companions in the γ Cas Analog RX J1744.7-2713

The Astronomical Journal
2022-07-01 | Journal article
Contributors: M. Prasow-Émond; J. Hlavacek-Larrondo; K. Fogarty; J. Rameau; L.-S. Guité; D. Mawet; P. Gandhi; A. Rao; J. F. Steiner; É. Artigau et al.
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Correlated Read Noise Reduction in Infrared Arrays Using Deep Learning

The Astronomical Journal
2022-06-01 | Journal article
Contributors: Guillaume Payeur; Étienne Artigau; Laurence Perreault Levasseur; René Doyon
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On the Effect of Stellar Activity on Low-resolution Transit Spectroscopy and the use of High Resolution as Mitigation

The Astronomical Journal
2022-05-01 | Journal article
Contributors: Frédéric Genest; David Lafrenière; Anne Boucher; Antoine Darveau-Bernier; René Doyon; Étienne Artigau; Neil Cook
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TOI-1759 b: A transiting sub-Neptune around a low mass star characterized with SPIRou and TESS

Astronomy & Astrophysics
2022-04 | Journal article
Contributors: E. Martioli; G. Hébrard; P. Fouqué; É. Artigau; J.-F. Donati; C. Cadieux; S. Bellotti; A. Lecavelier des Etangs; R. Doyon; J.-D. do Nascimento, Jr. et al.
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The Near-infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. II. Wide Field Slitless Spectroscopy

Publications of the Astronomical Society of the Pacific
2022-02-01 | Journal article
Contributors: Chris J. Willott; René Doyon; Loic Albert; Gabriel B. Brammer; William V. Dixon; Koraljka Muzic; Swara Ravindranath; Aleks Scholz; Roberto Abraham; Étienne Artigau et al.
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Characterizing Exoplanetary Atmospheres at High Resolution with SPIRou: Detection of Water on HD 189733 b

The Astronomical Journal
2021-12-01 | Journal article
Contributors: Anne Boucher; Antoine Darveau-Bernier; Stefan Pelletier; David Lafrenière; Étienne Artigau; Neil J. Cook; Romain Allart; Michael Radica; René Doyon; Björn Benneke et al.
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TOI–1278 B: SPIRou Unveils a Rare Brown Dwarf Companion in Close-in Orbit around an M Dwarf

The Astronomical Journal
2021-10-01 | Journal article
Contributors: Étienne Artigau; Guillaume Hébrard; Charles Cadieux; Thomas Vandal; Neil J. Cook; René Doyon; Jonathan Gagné; Claire Moutou; Eder Martioli; Antonio Frasca et al.
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Where Is the Water? Jupiter-like C/H Ratio but Strong H2O Depletion Found on τ Boötis b Using SPIRou

The Astronomical Journal
2021-08-01 | Journal article
Contributors: Stefan Pelletier; Björn Benneke; Antoine Darveau-Bernier; Anne Boucher; Neil J. Cook; Caroline Piaulet; Louis-Philippe Coulombe; Étienne Artigau; David Lafrenière; Simon Delisle et al.
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Spin-orbit alignment and magnetic activity in the young planetary system AU Mic

Astronomy & Astrophysics
2020-09 | Journal article
Contributors: E. Martioli; G. Hébrard; C. Moutou; J.-F. Donati; É. Artigau; B. Cale; N. J. Cook; S. Dalal; X. Delfosse; T. Forveille et al.
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Constraints on the Occurrence and Distribution of 1–20 MJup Companions to Stars at Separations of 5–5000 au from a Compilation of Direct Imaging Surveys

The Astronomical Journal
2019-11-01 | Journal article
Contributors: Frédérique Baron; David Lafrenière; Étienne Artigau; Jonathan Gagné; Julien Rameau; Philippe Delorme; Marie-Eve Naud
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Understanding Fundamental Properties and Atmospheric Features of Subdwarfs via a Case Study of SDSS J125637.13–022452.4∗

The Astrophysical Journal
2018-09-01 | Journal article
Contributors: Eileen C. Gonzales; Jacqueline K. Faherty; Jonathan Gagné; Étienne Artigau; Daniella Bardalez Gagliuffi
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WEIRD: Wide-orbit Exoplanet Search with InfraRed Direct Imaging

The Astronomical Journal
2018-09-01 | Journal article
Contributors: Frédérique Baron; Étienne Artigau; Julien Rameau; David Lafrenière; Jonathan Gagné; Lison Malo; Loïc Albert; Marie-Eve Naud; René Doyon; Markus Janson et al.
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Optical and Near-infrared Radial Velocity Content of M Dwarfs: Testing Models with Barnard’s Star

The Astronomical Journal
2018-05-01 | Journal article
Contributors: Étienne Artigau; Lison Malo; René Doyon; Pedro Figueira; Xavier Delfosse; Nicola Astudillo-Defru
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2MASS J13243553+6358281 Is an Early T-type Planetary-mass Object in the AB Doradus Moving Group

The Astrophysical Journal Letters
2018-02-20 | Journal article
Contributors: Jonathan Gagné; Katelyn N. Allers; Christopher A. Theissen; Jacqueline K. Faherty; Daniella Bardalez Gagliuffi; Étienne Artigau
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Banyan. X. Discovery of a Wide, Low-gravity L-type Companion to a Fast-rotating M3 Dwarf*

The Astrophysical Journal
2018-01-01 | Journal article
Contributors: Marie-Eve Desrochers; Étienne Artigau; Jonathan Gagné; René Doyon; Lison Malo; Jacqueline K. Faherty; David Lafrenière
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Evidence That the Directly Imaged Planet HD 131399 Ab Is a Background Star

The Astronomical Journal
2017-12-01 | Journal article
Contributors: Eric L. Nielsen; Robert J. De Rosa; Julien Rameau; Jason J. Wang; Thomas M. Esposito; Maxwell A. Millar-Blanchaer; Christian Marois; Arthur Vigan; S. Mark Ammons; Etienne Artigau et al.
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A Search for Photometric Variability in the Young T3.5 Planetary-mass Companion GU Psc b

The Astronomical Journal
2017-10-01 | Journal article
Contributors: Marie-Eve Naud; Étienne Artigau; Jason F. Rowe; René Doyon; Lison Malo; Loïc Albert; Jonathan Gagné; Sandie Bouchard
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PSYM-WIDE: A Survey for Large-separation Planetary-mass Companions to Late Spectral Type Members of Young Moving Groups

The Astronomical Journal
2017-09-01 | Journal article
Contributors: Marie-Eve Naud; Étienne Artigau; René Doyon; Lison Malo; Jonathan Gagné; David Lafrenière; Christian Wolf; Eugene A. Magnier
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SIMP J013656.5+093347 Is Likely a Planetary-mass Object in the Carina-Near Moving Group

The Astrophysical Journal Letters
2017-05-20 | Journal article
Contributors: Jonathan Gagné; Jacqueline K. Faherty; Adam J. Burgasser; Étienne Artigau; Sandie Bouchard; Loïc Albert; David Lafrenière; René Doyon; Daniella C. Bardalez Gagliuffi
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ON THE RADIAL VELOCITY DETECTION OF ADDITIONAL PLANETS IN TRANSITING, SLOWLY ROTATING M-DWARF SYSTEMS: THE CASE OF GJ 1132

The Astronomical Journal
2017-01-01 | Journal article
Contributors: Ryan Cloutier; René Doyon; Kristen Menou; Xavier Delfosse; Xavier Dumusque; Étienne Artigau
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A BROWN DWARF CENSUS FROM THE SIMP SURVEY

The Astrophysical Journal
2016-10-20 | Journal article
Contributors: Jasmin Robert; Jonathan Gagné; Étienne Artigau; David Lafrenière; Daniel Nadeau; René Doyon; Lison Malo; Loïc Albert; Corinne Simard; Daniella C. Bardalez Gagliuffi et al.
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BANYAN. VI. DISCOVERY OF A COMPANION AT THE BROWN DWARF/PLANET-MASS LIMIT TO A TUCANA–HOROLOGIUM M DWARF

The Astrophysical Journal
2015-06-23 | Journal article
Contributors: Étienne Artigau; Jonathan Gagné; Jacqueline Faherty; Lison Malo; Marie-Eve Naud; René Doyon; David Lafrenière; Yuri Beletsky
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