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Pierre-Alexis Roy

  1. Identification of carbon dioxide in an exoplanet atmosphere
    2022/08/24 by JWST Transiting Exoplanet Community Early Release Science Team, The JWST Transiting Exoplanet Community Early Release Science Team, Eva-Maria Ahrer +147 · 2 voices · 20 citations
    Physics and Astronomy · Earth and Planetary Sciences · #Stellar, planetary, and galactic studies #Astro and Planetary Science #Atmospheric Ozone and Climate
  2. Atmospheric Reconnaissance of TRAPPIST-1 b with JWST/NIRISS: Evidence for Strong Stellar Contamination in the Transmission Spectra
    2023/09/13 by Olivia Lim, Björn Benneke, René Doyon +22 · 1 voice · 14 citations
    Physics and Astronomy · #astro-ph.EP #astro-ph.SR
  3. Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 During JWST Transit Spectroscopy Observations
    2023/10/05 by Ward S. Howard, Howard, Ward S., Adam F. Kowalski +36 · 3 voices · 11 citations
    Earth and Planetary Sciences · Physics and Astronomy · #Geophysics and Gravity Measurements #Solar and Space Plasma Dynamics #astro-ph.EP #astro-ph.SR
  4. JWST Reveals CH4, CO2, and H2O in a Metal-rich Miscible Atmosphere on a Two-Earth-Radius Exoplanet
    2024/03/05 by Björn Benneke, Benneke, Björn, Pierre-Alexis Roy +59 · 11 citations
    Chemistry · #Spectroscopy and Laser Applications
  5. Muted Features in the JWST NIRISS Transmission Spectrum of Hot-Neptune LTT 9779 b
    2024/01/28 by Michael Radica, Louis-Philippe Coulombe, Radica, Michael +29 · 8 citations
    Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Calibration and Measurement Techniques #Earth and Planetary Astrophysics (astro-ph.EP) #FOS: Physical sciences #Gamma-ray bursts and supernovae
  6. Biases in Exoplanet Transmission Spectra Introduced by Limb Darkening Parametrization
    2024/09/05 by Louis-Philippe Coulombe, Coulombe, Louis-Philippe, Pierre-Alexis Roy +3 · 9 citations
    Physics and Astronomy · #Astronomy and Astrophysical Research #Stellar, planetary, and galactic studies #Scientific Research and Discoveries
  7. Strict limits on potential secondary atmospheres on the temperate rocky exo-Earth TRAPPIST-1 d
    2025/08/11 by Caroline Piaulet, Caroline Piaulet-Ghorayeb, Björn Benneke +52 · 2 voices · 8 citations
    Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph.EP #astro-ph.SR
  8. Transmission spectroscopy of WASP-52 b with JWST NIRISS: Water and helium atmospheric absorption, alongside prominent star-spot crossings
    2024/12/22 by Marylou Fournier-Tondreau, Fournier-Tondreau, Marylou, Kim Morel +42 · 4 citations
    Chemistry · Physics and Astronomy · #Astronomy and Astrophysical Research #Earth and Planetary Astrophysics (astro-ph.EP) #FOS: Physical sciences #Spectroscopy and Laser Applications #Stellar, planetary, and galactic studies
  9. Detailed Architecture of the L 98-59 System and Confirmation of a Fifth Planet in the Habitable Zone
    2025/07/12 by Charles Cadieux, Alexandrine L'Heureux, Cadieux, Charles +27 · 4 voices · 2 citations
    #astro-ph.EP
  10. JWST NIRISS Transmission Spectroscopy of the Super-Earth GJ 357b, a Favourable Target for Atmospheric Retention
    2025/05/30 by Jake Taylor, Michael Radica, Taylor, Jake +39 · 1 voice · 1 citation
    #astro-ph.EP #astro-ph.SR