DL
David Lafreniere
astro-ph.EPastro-ph.SRastro-ph.IMastro-phastro-ph.GAastro-ph.COastro-ph.HE
On Valency
published · living versionsW_cq26se5x·v1 · currentpublished
Detection of Solar-like Oscillations and Granulation at Infrared Wavelengths using JWST
with Angharad Weeks, Daniel Huber, Timothy R. Bedding, Jared Splinter +6
1 version
Preprints & journals
172 papers in the corpus · 2002–2026Upside 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
A Candidate Innermost Fifth Planet In the HR 8799 System Revealed By JWST NIRISS Aperture Masking Interferometry2609.10507v1 · Jayke S. Nguyen, Louis Desdoigts, Alexandra Z. Greenbaum 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
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
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)
Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b. I. HO and CO Detection from Dayside Observations with Gemini-S/IGRINS2605.20340v1 · Ying Shu, Lisa Dang, Antoine Darveau-Bernier et al.2026 · 1 citationYing Shu et al 2026 AJ 171 333
The Days Drag On on WASP-121 b: Interpreting its NIRISS Spectroscopic Phase Curve with General Circulation Models2605.01589v1 · Robert C. Frazier, Emily Rauscher, Jared Splinter 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)
Super-Solar Metallicity and Tentative Evidence for Photochemistry on WASP-96b from JWST and Ground-Based VLT Transmission Spectroscopy2604.05049v1 · Michael Radica, Jake Taylor, Yoav Rotman et al.2026 · 0 citationsarXiv
Exoplanet Search and Characterization with the Proposed POET Canadian Space Mission2603.24485v1 · S. Metchev, J. Rowe, P. Miles-P'aez et al.2026 · 0 citations2025, Proc. of SPIE Vol. 13627, 1362704-2
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)
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
Diversity in the haziness and chemistry of temperate sub-Neptunes2512.10876v1 · Pierre-Alexis Roy, Bjorn Benneke, Marylou Fournier-Tondreau et al.2025 · 9 citationsarXiv
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
Separating flare and secondary atmospheric signals with RADYN modeling of near-infrared JWST transmission spectroscopy observations of TRAPPIST-12512.04265v1 · Ward S. Howard, Adam F. Kowalski, Michael Radica et al.2025 · 2 citationsApJL 994, L31, 2025
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)
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
Precise Constraints on the Energy Budget of WASP-121 b from its JWST NIRISS/SOSS Phase Curve2509.09760v2 · Jared Splinter, Louis-Philippe Coulombe, Robert C. Frazier et al.2025 · 13 citationsThe Astronomical Journal 170 (2025) 323
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
Enriched volatiles and refractories but deficient titanium on the dayside atmosphere of WASP-121b revealed by JWST/NIRISS2508.18341v2 · Stefan Pelletier, Louis-Philippe Coulombe, Jared Splinter et al.2025 · 10 citationsarXiv
Two warm Earth-sized exoplanets and an Earth-sized candidate in the M5V-M6V binary system TOI-22672508.14176v2 · S. Z'uniga-Fern'andez, F. J. Pozuelos, M. D'evora-Pajares et al.2025 · 11 citationsA&A 702, A85 (2025)
Strict limits on potential secondary atmospheres on the temperate rocky exo-Earth TRAPPIST-1 d2508.08416v1 · Caroline Piaulet-Ghorayeb, Bjorn Benneke, Martin Turbet et al.2025 · 22 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)
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
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
Metal Polluted White Dwarfs with 21 {\mu}m IR excesses from JWST/MIRI: Planets or Dust?2506.21224v1 · John H. Debes, Sabrina Poulsen, Ashley Messier et al.2025 · 5 citationsarXiv
JWST NIRISS Transmission Spectroscopy of the Super-Earth GJ 357b, a Favourable Target for Atmospheric Retention2505.24462v1 · Jake Taylor, Michael Radica, Richard D. Chatterjee et al.2025 · 13 citationsarXiv
Continuous helium absorption from the leading and trailing tails of WASP-107b2505.20588v1 · Vigneshwaran Krishnamurthy, Yann Carteret, Caroline Piaulet-Ghorayeb et al.2025 · 0 citationsarXiv
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)
Constraining the Scattered Light properties of LTT 9779 b Using HST/WFC3 UVIS2503.05581v1 · Michael Radica, Jake Taylor, Hannah R. Wakeford et al.2025 · 6 citationsarXiv
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
Transmission spectroscopy of WASP-52 b with JWST NIRISS: Water and helium atmospheric absorption, alongside prominent star-spot crossings2412.17072v1 · Marylou Fournier-Tondreau, Yanbo Pan, Kim Morel et al.2024 · 22 citationsMNRAS 539 (2025) 422-438
Out of the Darkness: High-resolution Detection of CO Absorption on the Nightside of WASP-33b2410.11060v1 · Georgia Mraz, Antoine Darveau-Bernier, Anne Boucher et al.2024 · 12 citationsarXiv
JWST/NIRISS reveals the water-rich "steam world" atmosphere of GJ 9827 d2410.03527v1 · Caroline Piaulet-Ghorayeb, Bjorn Benneke, Michael Radica et al.2024 · 94 citationsarXiv
Promise and Peril: Stellar Contamination and Strict Limits on the Atmosphere Composition of TRAPPIST-1c from JWST NIRISS Transmission Spectra2409.19333v3 · Michael Radica, Caroline Piaulet-Ghorayeb, Jake Taylor et al.2024 · 58 citationsarXiv
Updated forecast for TRAPPIST-1 times of transit for all seven exoplanets incorporating JWST data2409.11620v1 · Eric Agol, Natalie H. Allen, Bjorn Benneke et al.2024 · 3 citationsarXiv
The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-Floating Planets2408.12639v3 · Adam B. Langeveld, Aleks Scholz, Koraljka Muzi'c et al.2024 · 26 citationsarXiv
Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS2406.15136v1 · Charles Cadieux, Ren'e Doyon, Ryan J. MacDonald et al.2024 · 70 citationsarXiv
NIRPS first light and early science: breaking the 1 m/s RV precision barrier at infrared wavelengths2406.08304v2 · 'Etienne Artigau, Francois Bouchy, Ren'e Doyon et al.2024 · 0 citationsarXiv
The James Webb Interferometer: Space-based interferometric detections of PDS 70 b and c at 4.8 m2404.13032v2 · Dori Blakely, Doug Johnstone, Gabriele Cugno et al.2024 · 19 citationsarXiv
The First High-Contrast Images of Near High-Mass X-Ray Binaries with Keck/NIRC22403.15845v1 · M. Prasow-'Emond, J. Hlavacek-Larrondo, K. Fogarty et al.2024 · 3 citationsarXiv
JWST Reveals CH, CO, and HO in a Metal-rich Miscible Atmosphere on a Two-Earth-Radius Exoplanet2403.03325v1 · Bjorn Benneke, Pierre-Alexis Roy, Louis-Philippe Coulombe et al.2024 · 30 citationsarXiv
Muted Features in the JWST NIRISS Transmission Spectrum of Hot-Neptune LTT 9779 b2401.15548v1 · Michael Radica, Louis-Philippe Coulombe, Jake Taylor et al.2024 · 57 citationsarXiv
Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey: III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-Transit Jupiter Orbiting TOI-20102311.10232v1 · Christopher R. Mann, Paul A. Dalba, David Lafreniere et al.2023 · 13 citationsAJ, 166, 239 (2023)
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